SIM800 Series_AT Command Manual_V1.10 Series AT Manual V1.10

SIM800 Series_AT Command

Manual_V1.10

Smart Machine Smart Decision

SIM800 Series_AT Command Manual_V1.10 2 2016-02-01

Document Title: SIM800 Series AT Command Manual

Version: 1.10

Date: 2016-05-18

Status: Release

Document Control ID: SIM800 Series_AT Command Manual_V1.10

General Notes

SIMCom offers this information as a service to its customers, to support application and

engineering efforts that use the products designed by SIMCom. The information provided is based

upon requirements specifically provided to SIMCom by the customers. SIMCom has not

undertaken any independent search for additional relevant information, including any information

that may be in the customer’s possession. Furthermore, system validation of this product designed

by SIMCom within a larger electronic system remains the responsibility of the customer or the

customer’s system integrator. All specifications supplied herein are subject to change.

Copyright

This document contains proprietary technical information which is the property of Shanghai

SIMCom Wireless Solutions Ltd, copying of this document and giving it to others and the using or

communication of the contents thereof, are forbidden without express authority. Offenders are

registration of a utility model or design. All specification supplied herein are subject to change

without notice at any time.

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Contents

Version History ........................................................................................ 14

1 Introduction ........................................................................................... 22

1.1 Scope of the document ....................................................................................... 22

1.2 Related documents ............................................................................................. 22

1.3 Conventions and abbreviations .......................................................................... 22

1.4 AT Command syntax .......................................................................................... 22

1.4.1 Basic syntax ................................................................................................................... 23

1.4.2 S Parameter syntax ......................................................................................................... 23

1.4.3 Extended Syntax ............................................................................................................ 23

1.4.4 Combining AT commands on the same Command line ................................................ 23

1.4.5 Entering successive AT commands on separate lines..................................................... 24

1.5 Supported character sets ..................................................................................... 24

1.6 Flow control ....................................................................................................... 24

1.6.1 Software flow control (XON/XOFF flow control) ........................................................ 24

1.6.2 Hardware flow control (RTS/CTS flow control) ........................................................... 25

1.7 Definitions .......................................................................................................... 25

1.7.1 Parameter Saving Mode ................................................................................................. 25

1.7.2 Max Response Time ....................................................................................................... 26

2 AT Commands According to V.25TER ............................................... 27

2.1 Overview of AT Commands According to V.25TER ......................................... 27

2.2 Detailed Description of AT Commands According to V.25TER ........................ 28

2.2.1 A/ Re-issues the Last Command Given ...................................................................... 28

2.2.2 ATA Answer an Incoming Call ................................................................................... 28

2.2.3 ATD Mobile Originated Call to Dial A Number ......................................................... 29

2.2.4 ATD><n> Originate Call to Phone Number in Current Memory ............................... 31

2.2.5 ATD><str> Originate Call to Phone Number in Memory Which Corresponds to

Field <str> ............................................................................................................................... 32

2.2.6 ATDL Redial Last Telephone Number Used ............................................................... 33

2.2.7 ATE Set Command Echo Mode .................................................................................. 34

2.2.8 ATH Disconnect Existing Connection ........................................................................ 35

2.2.9 ATI Display Product Identification Information ......................................................... 35

2.2.10 ATL Set Monitor speaker loudness ........................................................................... 36

2.2.11 ATM Set Monitor Speaker Mode .............................................................................. 36

2.2.12 +++ Switch from Data Mode or PPP Online Mode to Command Mode .................. 36

2.2.13 ATO Switch from Command Mode to Data Mode ................................................... 37

2.2.14 ATP Select Pulse Dialling ......................................................................................... 37

2.2.15 ATQ Set Result Code Presentation Mode ................................................................. 38

2.2.16 ATS0 Set Number of Rings before Automatically Answering the Call .................... 38

2.2.17 ATS3 Set Command Line Termination Character ..................................................... 39

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2.2.18 ATS4 Set Response Formatting Character ................................................................ 39

2.2.19 ATS5 Set Command Line Editing Character ............................................................ 40

2.2.20 ATS6 Pause Before Blind Dialling............................................................................ 41

2.2.21 ATS7 Set Number of Seconds to Wait for Connection Completion .......................... 41

2.2.22 ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in

Dial String of D Command ..................................................................................................... 42

2.2.23 ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier ............. 42

2.2.24 ATT Select Tone Dialing ........................................................................................... 43

2.2.25 ATV TA Response Format ....................................................................................... 43

2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress ..................... 44

2.2.27 ATZ Reset Default Configuration ............................................................................. 45

2.2.28 AT&C Set DCD Function Mode ............................................................................... 45

2.2.29 AT&D Set DTR Function Mode ............................................................................... 46

2.2.30 AT&F Factory Defined Configuration ...................................................................... 46

2.2.31 AT&V Display Current Configuration ...................................................................... 47

2.2.32 AT&W Store Active Profile ...................................................................................... 47

2.2.33 AT+GCAP Request Complete TA Capabilities List .................................................. 49

2.2.34 AT+GMI Request Manufacturer Identification ......................................................... 49

2.2.35 AT+GMM Request TA Model Identification ............................................................ 50

2.2.36 AT+GMR Request TA Revision Identification of Software Release ........................ 50

2.2.37 AT+GOI Request Global Object Identification ......................................................... 51

2.2.38 AT+GSN Request TA Serial Number Identification (IMEI) ..................................... 51

2.2.39 AT+ICF Set TE-TA Control Character Framing ....................................................... 52

2.2.40 AT+IFC Set TE-TA Local Data Flow Control .......................................................... 53

2.2.41 AT+IPR Set TE-TA Fixed Local Rate ....................................................................... 54

2.2.42 AT+HVOIC Disconnect Voice Call Only ................................................................. 55

3 AT Commands According to 3GPP TS 27.007 .................................... 56

3.1 Overview of AT Command According to 3GPP TS 27.007 ............................... 56

3.2 Detailed Descriptions of AT Command According to 3GPP TS 27.007 ............ 57

3.2.1 AT+CACM Accumulated Call Meter (ACM) Reset or Query .................................... 57

3.2.2 AT+CAMM Accumulated Call Meter Maximum (ACM max) Set or Query ............. 58

3.2.3 AT+CAOC Advice of Charge ..................................................................................... 59

3.2.4 AT+CBST Select Bearer Service Type........................................................................ 60

3.2.5 AT+CCFC Call Forwarding Number and Conditions Control .................................... 61

3.2.6 AT+CCWA Call Waiting Control ................................................................................ 63

3.2.7AT+CEER Extended Error Report ............................................................................... 64

3.2.8 AT+CGMI Request Manufacturer Identification ........................................................ 67

3.2.9 AT+CGMM Request Model Identification ................................................................. 67

3.2.10 AT+CGMR Request TA Revision Identification of Software Release ...................... 68

3.2.11 AT+CGSN Request Product Serial Number Identification (Identical with +GSN) .. 68

3.2.12 AT+CSCS Select TE Character Set ........................................................................... 69

3.2.13 AT+CSTA Select Type of Address ............................................................................ 70

3.2.14 AT+CHLD Call Hold and Multiparty ....................................................................... 70

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3.2.15 AT+CIMI Request International Mobile Subscriber Identity .................................... 71

3.2.16 AT+CLCC List Current Calls of ME ........................................................................ 72

3.2.17 AT+CLCK Facility Lock........................................................................................... 73

3.2.18 AT+CLIP Calling Line Identification Presentation ................................................... 75

3.2.19 AT+CLIR Calling Line Identification Restriction..................................................... 76

3.2.20 AT+CMEE Report Mobile Equipment Error ............................................................ 77

3.2.21 AT+COLP Connected Line Identification Presentation ............................................ 78

3.2.22 AT+COPS Operator Selection ................................................................................... 80

3.2.23 AT+CPAS Phone Activity Status .............................................................................. 81

3.2.24 AT+CPBF Find Phonebook Entries .......................................................................... 82

3.2.25 AT+CPBR Read Current Phonebook Entries ............................................................ 83

3.2.26 AT+CPBS Select Phonebook Memory Storage ........................................................ 84

3.2.27 AT+CPBW Write Phonebook Entry .......................................................................... 85

3.2.28 AT+CPIN Enter PIN ................................................................................................. 86

3.2.29 AT+CPWD Change Password ................................................................................... 87

3.2.30 AT+CR Service Reporting Control ........................................................................... 88

3.2.31 AT+CRC Set Cellular Result Codes for Incoming Call Indication ........................... 89

3.2.32 AT+CREG Network Registration ............................................................................. 90

3.2.33 AT+CRLP Select Radio Link Protocol Parameters ................................................... 92

3.2.34 AT+CRSM Restricted SIM Access ........................................................................... 92

3.2.35 AT+CSQ Signal Quality Report ................................................................................ 93

3.2.36 AT+VTD Tone Duration ........................................................................................... 94

3.2.37 AT+VTS DTMF and Tone Generation ...................................................................... 95

3.2.38 AT+CMUX Multiplexer Control ............................................................................... 96

3.2.39 AT+CNUM Subscriber Number ............................................................................... 97

3.2.40 AT+CPOL Preferred Operator List ........................................................................... 98

3.2.41 AT+COPN Read Operator Names ............................................................................ 99

3.2.42 AT+CFUN Set Phone Functionality ........................................................................ 100

3.2.43 AT+CCLK Clock .................................................................................................... 101

3.2.44 AT+CSIM Generic SIM Access .............................................................................. 101

3.2.45 AT+CALM Alert Sound Mode ............................................................................... 102

3.2.46 AT+CALS Alert Sound Select ................................................................................ 103

3.2.47 AT+CRSL Ringer Sound Level ............................................................................... 104

3.2.48 AT+CLVL Loud Speaker Volume Level ................................................................. 104

3.2.49 AT+CMUT Mute Control ....................................................................................... 105

3.2.50 AT+CPUC Price Per Unit and Currency Table ....................................................... 106

3.2.51 AT+CCWE Call Meter Maximum Event ................................................................ 107

3.2.52 AT+CBC Battery Charge ........................................................................................ 108

3.2.53 AT+CUSD Unstructured Supplementary Service Data ........................................... 108

3.2.54 AT+CSSN Supplementary Services Notification .................................................... 109

4 AT Commands According to 3GPP TS 27.005 .................................. 112

4.1 Overview of AT Commands According to 3GPP TS 27.005 ........................... 112

4.2 Detailed Descriptions of AT Commands According to 3GPP TS 27.005 ........ 112

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4.2.1 AT+CMGD Delete SMS Message ............................................................................ 112

4.2.2 AT+CMGF Select SMS Message Format ................................................................. 113

4.2.3 AT+CMGL List SMS Messages from Preferred Store .............................................. 114

4.2.4 AT+CMGR Read SMS Message ............................................................................... 117

4.2.5 AT+CMGS Send SMS Message ............................................................................... 120

4.2.6 AT+CMGW Write SMS Message to Memory .......................................................... 121

4.2.7 AT+CMSS Send SMS Message from Storage .......................................................... 123

4.2.8 AT+CNMI New SMS Message Indications .............................................................. 124

4.2.9 AT+CPMS Preferred SMS Message Storage ............................................................ 126

4.2.10 AT+CRES Restore SMS Settings ............................................................................ 127

4.2.11 AT+CSAS Save SMS Settings ................................................................................ 128

4.2.12 AT+CSCA SMS Service Center Address ................................................................ 129

4.2.13 AT+CSCB Select Cell Broadcast SMS Messages ................................................... 130

4.2.14 AT+CSDH Show SMS Text Mode Parameters ....................................................... 131

4.2.15 AT+CSMP Set SMS Text Mode Parameters ........................................................... 132

4.2.16 AT+CSMS Select Message Service ........................................................................ 133

5 AT Commands for SIM Application Toolkit ..................................... 135

5.1 Overview .......................................................................................................... 135

5.2 Detailed Descriptions of Commands ................................................................ 135

5.2.1 AT+STKTRS STK Terminal Response ..................................................................... 135

5.2.2 AT+STKENVS STK Envelope Command ............................................................... 136

5.2.3 AT+STKCALL STK call setup ................................................................................. 137

5.2.4 AT+STKSMS STK SMS delivery ............................................................................ 138

5.2.5 AT+STKSS STK SS setup ........................................................................................ 138

5.2.6 AT+STKUSSD STK USSD setup ............................................................................. 139

5.2.7 AT+STKDTMF STK sending DTMF ....................................................................... 139

5.2.8 +STKPCI STK Proactive Command Indication ....................................................... 140

5.2.9 AT+STKMENU STK Main menu command ............................................................ 141

5.2.10 AT+STKPCIS STK URC switch command ............................................................ 141

6 AT Commands Special for SIMCom .................................................. 143

6.1 Overview .......................................................................................................... 143

6.2 Detailed Descriptions of Commands ................................................................ 145

6.2.1 AT+SIDET Change the Side Tone Gain Level....................................................... 145

6.2.2 AT+CPOWD Power off ............................................................................................ 146

6.2.3 AT+SPIC Times Remained to Input SIM PIN/PUK ................................................ 146

6.2.4 AT+CMIC Change the Microphone Gain Level ...................................................... 146

6.2.5 AT+CALA Set Alarm Time ..................................................................................... 148

6.2.6 AT+CALD Delete Alarm ......................................................................................... 149

6.2.7 AT+CADC Read ADC ............................................................................................. 149

6.2.8 AT+CSNS Single Numbering Scheme ..................................................................... 150

6.2.9 AT+CDSCB Reset Cell Broadcast ........................................................................... 151

6.2.10 AT+CMOD Configure Alternating Mode Calls ..................................................... 151

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6.2.11 AT+CFGRI Indicate RI When Using URC ............................................................ 152

6.2.12 AT+CLTS Get Local Timestamp ........................................................................... 152

6.2.13 AT+CLDTMF Local DTMF Tone Generation ....................................................... 154

6.2.14 AT+CDRIND CS Voice/Data Call Termination Indication ................................... 155

6.2.15 AT+CSPN Get Service Provider Name from SIM .................................................. 156

6.2.16 AT+CCVM Get and Set the Voice Mail Number on the SIM ................................. 156

6.2.17 AT+CBAND Get and Set Mobile Operation Band ................................................. 157

6.2.18 AT+CHF Configure Hands Free Operation ............................................................ 158

6.2.19 AT+CHFA Swap the Audio Channels ..................................................................... 159

6.2.20 AT+CSCLK Configure Slow Clock ........................................................................ 160

6.2.21 AT+CENG Switch on or off Engineering Mode ..................................................... 161

6.2.22 AT+SCLASS0 Store Class 0 SMS to SIM When Received Class 0 SMS .............. 163

6.2.23 AT+CCID Show ICCID .......................................................................................... 164

6.2.24 AT+CMTE Set Critical Temperature Operating Mode or Query Temperature ...... 164

6.2.25 AT+CMGDA Delete All SMS ................................................................................ 165

6.2.26 AT+STTONE Play SIM Toolkit Tone.................................................................... 166

6.2.27 AT+SIMTONE Generate Specifically Tone ........................................................... 167

6.2.28 AT+CCPD Enable or Disable Alpha String ........................................................... 168

6.2.29 AT+CGID Get SIM Card Group Identifier ............................................................. 168

6.2.30 AT+MORING Show State of Mobile Originated Call ........................................... 169

6.2.31 AT+CMGHEX Enable or Disable Sending Non-ASCII Character SMS ............... 170

6.2.32 AT+CCODE Configure SMS Code Mode .............................................................. 170

6.2.33 AT+CIURC Enable or Disable Initial URC Presentation ....................................... 171

6.2.34 AT+CPSPWD Change PS Super Password ............................................................ 172

6.2.35 AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications ................. 172

6.2.36 AT+CGMSCLASS Change GPRS Multislot Class ................................................ 173

6.2.37 AT+CDEVICE View Current Flash Device Type .................................................. 174

6.2.38 AT+CCALR Call Ready Query .............................................................................. 174

6.2.39 AT+GSV Display Product Identification Information ............................................ 175

6.2.40 AT+SGPIO Control the GPIO ................................................................................. 175

6.2.41 AT+SPWM Generate the Pulse-Width-Modulation ................................................ 176

6.2.42 AT+ECHO Echo Cancellation Control ................................................................... 177

6.2.43 AT+CAAS Control Auto Audio Switch .................................................................. 178

6.2.44 AT+SVR Configure Voice Coding Type for Voice Calls ........................................ 178

6.2.45 AT+GSMBUSY Reject Incoming Call ................................................................... 180

6.2.46 AT+CEMNL Set the List of Emergency Number ................................................... 180

6.2.47 AT*CELLLOCK Set the List of ARFCN Which Needs to Be Locked ................... 181

6.2.48 AT+SLEDS Set the Timer Period of Net Light ....................................................... 182

6.2.49 AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring .............. 183

6.2.50 AT+CEXTERNTONE Close or Open the Microphone .......................................... 184

6.2.51 AT+CNETLIGHT Close the Net Light or Open It to Shining ................................ 184

6.2.52 AT+CWHITELIST Set the White List .................................................................... 185

6.2.53 AT+CSDT Switch on or off Detecting SIM Card .................................................. 186

6.2.54 AT+CSMINS SIM Inserted Status Reporting ........................................................ 187

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6.2.55 AT+CSGS Netlight Indication of GPRS Status ..................................................... 188

6.2.56 AT+CMICBIAS Close or Open the MICBIAS ...................................................... 188

6.2.57 AT+DTAM Set TTS and RECORD Play Mode in Call ......................................... 189

6.2.58 AT+SJDR Set Jamming Detection Function ........................................................... 190

6.2.59 AT+CPCMCFG Set PCM Parameter ...................................................................... 192

6.2.60 AT+CPCMSYNC Set PCM Sync Parameter .......................................................... 192

6.2.61 AT+CANT Antenna Detecting ................................................................................ 193

6.2.62 AT+CAGCSET Close or Open AGC Function ....................................................... 194

6.2.63 AT+SD2PCM SD and PCM Switch Function ......................................................... 195

6.2.64 AT+SKPD Keypad Detecting Function .................................................................. 196

6.2.65 AT+SIMTONEX Custom Tones ............................................................................... 196

6.2.66 AT+CROAMING Roaming State .............................................................................. 197

6.2.67 AT+CNETSCAN Perform a Net Survey to Show All the Cells’ Information .......... 198

6.2.68 AT+CMNRP Dual Serial Port Feature ................................................................... 199

6.2.69 AT+CEGPRS Switch on or off EDGE ................................................................... 200

6.2.70 AT+CGPIO Control the GPIO by PIN Index .......................................................... 200

6.2.71 AT+CMEDPLAY Play Audio File .......................................................................... 201

6.2.72 AT+CMEDIAVOL Control the Volume when Playing Audio File ......................... 202

6.2.73 AT+SNDLEVEL Set the Sound Level of Special AT Command ............................ 203

6.2.74 AT+ECHARGE Charge Control ............................................................................ 203

6.2.75 AT+SIMTIMER Modify the Poll Interval Time Requested by SIM Card ............. 204

6.2.76 AT+SPE Speech Enhancement Control .................................................................. 205

6.2.77 AT+CCONCINDEX Report Concatenated SMS Index .......................................... 205

6.2.78 AT+SDMODE SD Mode Switch Function ............................................................. 206

6.2.79 AT+SRSPT Control SMS Retransmission ............................................................. 206

6.2.80 AT+CELLIST Perform a Net Survey to Show All the Cells’ Information............. 207

6.2.81 AT+CLIST Query AT ............................................................................................. 208

6.2.82 AT+CBATCHK Set VBAT Checking Feature ON/OFF ........................................ 209

7 AT Commands for GPRS Support ...................................................... 210

7.1 Overview of AT Commands for GPRS Support ............................................... 210

7.2 Detailed Descriptions of AT Commands for GPRS Support ............................ 210

7.2.1 AT+CGATT Attach or Detach from GPRS Service .................................................. 210

7.2.2 AT+CGDCONT Define PDP Context ....................................................................... 211

7.2.3 AT+CGQMIN Quality of Service Profile (Minimum Acceptable) ........................... 212

7.2.4 AT+CGQREQ Quality of Service Profile (Requested) ............................................. 213

7.2.5 AT+CGACT PDP Context Activate or Deactivate .................................................... 215

7.2.6 AT+CGDATA Enter Data State ................................................................................. 216

7.2.7 AT+CGPADDR Show PDP Address ......................................................................... 216

7.2.8 AT+CGCLASS GPRS Mobile Station Class ............................................................ 217

7.2.9 AT+CGEREP Control Unsolicited GPRS Event Reporting ...................................... 218

7.2.10 AT+CGREG Network Registration Status .............................................................. 219

7.2.11 AT+CGSMS Select Service for MO SMS Messages .............................................. 220

8 AT Commands for TCPIP Application Toolkit .................................. 222

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8.1 Overview .......................................................................................................... 222

8.2 Detailed Descriptions of Commands ................................................................ 223

8.2.1 AT+CIPMUX Start Up Multi-IP Connection ............................................................ 223

8.2.2 AT+CIPSTART Start Up TCP or UDP Connection .................................................. 223

8.2.3 AT+CIPSEND Send Data Through TCP or UDP Connection .................................. 225

8.2.4 AT+CIPQSEND Select Data Transmitting Mode ..................................................... 227

8.2.5 AT+CIPACK Query Previous Connection Data Transmitting State ......................... 228

8.2.6 AT+CIPCLOSE Close TCP or UDP Connection ..................................................... 229

8.2.7 AT+CIPSHUT Deactivate GPRS PDP Context ........................................................ 229

8.2.8 AT+CLPORT Set Local Port ..................................................................................... 230

8.2.9 AT+CSTT Start Task and Set APN, USER NAME, PASSWORD .......................... 231

8.2.10 AT+CIICR Bring Up Wireless Connection with GPRS or CSD ............................. 232

8.2.11 AT+CIFSR Get Local IP Address ............................................................................ 232

8.2.12 AT+CIPSTATUS Query Current Connection Status ............................................... 233

8.2.13 AT+CDNSCFG Configure Domain Name Server .................................................. 235

8.2.14 AT+CDNSGIP Query the IP Address of Given Domain Name .............................. 235

8.2.15 AT+CIPHEAD Add an IP Head at the Beginning of a Package Received ............. 236

8.2.16 AT+CIPATS Set Auto Sending Timer ..................................................................... 237

8.2.17 AT+CIPSPRT Set Prompt of ‘>’ When Module Sends Data ................................... 238

8.2.18 AT+CIPSERVER Configure Module as Server ...................................................... 238

8.2.19 AT+CIPCSGP Set CSD or GPRS for Connection Mode ........................................ 239

8.2.20 AT+CIPSRIP Show Remote IP Address and Port When Received Data ................ 240

8.2.21 AT+CIPDPDP Set Whether to Check State of GPRS Network Timing .................. 241

8.2.22 AT+CIPMODE Select TCPIP Application Mode ................................................... 242

8.2.23 AT+CIPCCFG Configure Transparent Transfer Mode ........................................... 242

8.2.24 AT+CIPSHOWTP Display Transfer Protocol in IP Head When Received Data .... 244

8.2.25 AT+CIPUDPMODE UDP Extended Mode ............................................................ 244

8.2.26 AT+CIPRXGET Get Data from Network Manually ............................................... 245

8.2.27 AT+CIPSCONT Save TCPIP Application Context ................................................. 247

8.2.28 AT+CIPRDTIMER Set Remote Delay Timer ........................................................ 248

8.2.29 AT+CIPSGTXT Select GPRS PDP context ........................................................... 249

8.2.30 AT+CIPTKA Set TCP Keepalive Parameters ........................................................ 251

9 AT Commands for IP Application ...................................................... 252

9.1 Overview .......................................................................................................... 252

9.2 Detailed Descriptions of Commands ................................................................ 252

9.2.1 AT+SAPBR Bearer Settings for Applications Based on IP ...................................... 252

10 AT Commands for PING Support .................................................... 254

10.1 Overview ........................................................................................................ 254

10.2 Detailed Descriptions of Commands .............................................................. 254

10.2.1 AT+CIPPING PING Request .................................................................................. 254

10.2.2 AT+CIPCTL Set the Mode When Receiving an IP Packet ..................................... 255

10.2.3 AT+CIPFLT Set the Rules of IP Filter .................................................................... 256

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10.2.4 AT+CIPBEIPING Set the Module to be PING or Not ............................................ 257

11 AT Commands for HTTP Application ............................................. 259

11.1 Overview ........................................................................................................ 259

11.2 Detailed Descriptions of Commands .............................................................. 259

11.2.1 AT+HTTPINIT Initialize HTTP Service ................................................................. 259

11.2.2 AT+HTTPTERM Terminate HTTP Service ............................................................ 260

11.2.3 AT+HTTPPARA Set HTTP Parameters Value ........................................................ 260

11.2.4 AT+HTTPDATA Input HTTP Data ......................................................................... 262

11.2.5 AT+HTTPACTION HTTP Method Action ............................................................. 262

11.2.6 AT+HTTPREAD Read the HTTP Server Response ............................................... 264

11.2.7 AT+HTTPSCONT Save HTTP Application Context .............................................. 265

11.2.8 AT+HTTPSTATUS Read HTTP Status ................................................................... 266

11.2.9 AT+HTTPHEAD Read the HTTP Header Information of Server Response .......... 267

12 AT Commands for FTP Application ................................................ 268

12.1 Overview ........................................................................................................ 268

12.2 Detailed Descriptions of Commands .............................................................. 269

12.2.1 AT+FTPPORT Set FTP Control Port ...................................................................... 269

12.2.2 AT+FTPMODE Set Active or Passive FTP Mode .................................................. 269

12.2.3 AT+FTPTYPE Set the Type of Data to Be Transferred .......................................... 270

12.2.4 AT+FTPPUTOPT Set FTP Put Type ....................................................................... 271

12.2.5 AT+FTPCID Set FTP Bearer Profile Identifier ....................................................... 271

12.2.6 AT+FTPREST Set Resume Broken Download ....................................................... 272

12.2.7 AT+FTPSERV Set FTP Server Address .................................................................. 272

12.2.8 AT+FTPUN Set FTP User Name ............................................................................ 273

12.2.9 AT+FTPPW Set FTP Password ............................................................................... 274

12.2.10 AT+FTPGETNAME Set Download File Name .................................................... 275

12.2.11 AT+FTPGETPATH Set Download File Path ......................................................... 275

12.2.12 AT+FTPPUTNAME Set Upload File Name ......................................................... 276

12.2.13 AT+FTPPUTPATH Set Upload File Path ............................................................. 276

12.2.14 AT+FTPGET Download File ................................................................................ 277

12.2.15 AT+FTPPUT Set Upload File ............................................................................... 278

12.2.16 AT+FTPSCONT Save FTP Application Context .................................................. 279

12.2.17 AT+FTPDELE Delete Specified File in FTP Server ............................................. 280

12.2.18 AT+FTPSIZE Get the Size of Specified File in FTP Server ................................. 281

12.2.19 AT+FTPSTATE Get the FTP State ........................................................................ 282

12.2.20 AT+FTPEXTPUT Extend Upload File .................................................................... 282

12.2.21 AT+FTPMKD Make Directory on the Remote Machine ...................................... 283

12.2.22 AT+FTPRMD Remove Directory on the Remote Machine .................................. 284

12.2.23 AT+FTPLIST List Contents of Directory on the Remote Machine ...................... 284

12.2.24 AT+FTPGETTOFS Download File and Save in File System ............................... 285

12.2.25 AT+FTPPUTFRMFS Upload File from File System. ........................................... 286

12.2.26 AT+FTPEXTGET Extend Download File ............................................................ 288

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12.2.27 AT+FTPFILEPUT Load File in RAM from File System then Upolad with

FTPPUT ................................................................................................................................ 289

12.2.28 AT+FTPQUIT Quit Current FTP Session ............................................................. 290

13 AT Commands for GSM Location Application ............................... 291

13.1 Overview ........................................................................................................ 291

13.2 Detailed Descriptions of Commands .............................................................. 291

13.2.1 AT+CIPGSMLOC GSM Location and Time ............................................................ 291

14 AT Commands for Email Application .............................................. 293

14.1 Overview ........................................................................................................ 293

14.2 Detailed Descriptions of Commands .............................................................. 294

14.2.1 AT+EMAILCID Set Email Bearer Profile Identifier .............................................. 294

14.2.2 AT+EMAILTO Set Timeout Value of SMTP/POP3 Server Response .................. 294

14.2.3 AT+SMTPSRV Set SMTP Server Address and Port ............................................. 295

14.2.4 AT+SMTPAUTH Set User Name and Password for SMTP Authentication .......... 296

14.2.5 AT+SMTPFROM Set Sender Address and Name .................................................. 297

14.2.6 AT+SMTPRCPT Set the Email Recipient(TO/CC/BCC) Address and Name ....... 298

14.2.7 AT+SMTPSUB Set the Email Subject ................................................................... 299

14.2.8 AT+SMTPBODY Set the Email Body ................................................................... 299

14.2.9 AT+SMTPFILE Set the Email Attachment ............................................................ 300

14.2.10 AT+SMTPSEND Send the Email ......................................................................... 301

14.2.11 AT+SMTPFT Transfer the Email Attachment ...................................................... 302

14.2.12 AT+SMTPCS Set the Email Charset .................................................................... 303

14.2.13 AT+POP3SRV Set POP3 Server and Account ..................................................... 304

14.2.14 AT+POP3IN Log in POP3 Server ........................................................................ 305

14.2.15 AT+POP3NUM Get Email Number and Total Size ............................................. 305

14.2.16 AT+POP3LIST Get the Specific Email Size ........................................................ 306

14.2.17 AT+POP3UIDL Get the Specific Email Unique-id .............................................. 307

14.2.18 AT+POP3CMD Get Multi-line Response ............................................................ 308

14.2.19 AT+POP3READ Read Multi-line Response ........................................................ 310

14.2.20 AT+POP3DEL Mark the Specific Email to Delete .............................................. 311

14.2.21 AT+POP3RSET Unmark the Emails that Be Marked as Deleted ........................ 312

14.2.22 AT+POP3OUT Log Out POP3 Server ................................................................. 313

15 AT Commands for MMS Application .............................................. 314

15.1 Overview ........................................................................................................ 314

15.2 Detailed Descriptions of Commands .............................................................. 315

15.2.1 AT+CMMSCURL Set the URL of the MMS Center ............................................. 315

15.2.2 AT+CMMSPROTO Set the Protocol Parameter and MMS Proxy ......................... 315

15.2.3 AT+CMMSCID Set the Network Parameters for MMS ......................................... 316

15.2.4 AT+CMMSSENDCFG Set the Parameters for Sending MMS .............................. 317

15.2.5 AT+CMMSEDIT Enter or Exit Edit Mode ............................................................ 318

15.2.6 AT+CMMSDOWN Download the File Data or Title from UART ........................ 319

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15.2.7 AT+CMMSDELFILE Delete the File of the Edited MMS by File Index .............. 320

15.2.8 AT+CMMSSEND Start MMS Sending .................................................................. 321

15.2.9 AT+CMMSRECP Add Recipients ......................................................................... 322

15.2.10 AT+CMMSCC Add Copy Recipients .................................................................. 322

15.2.11 AT+CMMSBCC Add Secret Recipients .............................................................. 323

15.2.12 AT+CMMSDELRECP Delete Recipients ............................................................ 324

15.2.13 AT+CMMSDELCC Delete Copy Recipients ....................................................... 324

15.2.14 AT+CMMSDELBCC Delete Secret Recipients ................................................... 325

15.2.15 AT+CMMSRECV Receive MMS ........................................................................ 326

15.2.16 AT+CMMSVIEW Get the MMS into Buffer and Show the Information............. 327

15.2.17 AT+CMMSREAD Read the Given File of the MMS in the Buffer ..................... 328

15.2.18 AT+CMMSRDPUSH Read the Information of the MMS PUSH Message .......... 328

15.2.19 AT+CMMSUA Set User Agent ............................................................................ 330

15.2.20 AT+CMMSPROFILE Set User Agent Profile ...................................................... 331

15.2.21 AT+CMMSTIMEOUT Set MMS Timeout .......................................................... 331

15.2.22 AT+CMMSSTATUS Get MMS Status ................................................................ 332

15.2.23 AT+CMMSINIT Initialize MMS Function .......................................................... 333

15.2.24 AT+CMMSTERM Exit MMS Function ............................................................... 333

15.2.25 AT+CMMSSCONT Save MMS Context ............................................................. 334

16 AT Commands for DDET Application ............................................. 336

16.1 Overview ........................................................................................................ 336

16.2 Detailed Descriptions of Commands .............................................................. 336

16.2.1 AT+DDET DTMF Detection Control ..................................................................... 336

17 AT Commands for RECORD Application ....................................... 338

17.1 Overview ........................................................................................................ 338

17.2 Detailed Descriptions of Commands .............................................................. 338

17.2.1 AT+CREC Record Operation ................................................................................. 338

17.2.2 AT+CRECORD Record and Send Data to UART .................................................. 341

18 AT Commands for TTS Application ................................................ 343

18.1 Overview ........................................................................................................ 343

18.2 Detailed Descriptions of Commands .............................................................. 343

18.2.1 AT+CTTS TTS Operation....................................................................................... 343

18.2.2 AT+CTTSPARAM Set Parameters of the TTS Playing .......................................... 344

18.2.3 AT+CTTSRING Enable/Disable TTS Play During Incoming Call Ring ................ 345

19 Supported Unsolicited Result Codes ................................................ 346

19.1 Summary of CME ERROR Codes ................................................................. 346

19.2 Summary of CMS ERROR Codes ................................................................. 349

19.3 Summary of Unsolicited Result Codes .......................................................... 353

20 AT Commands Examples ................................................................. 358

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20.1 Profile Commands .......................................................................................... 358

20.2 SIM Commands .............................................................................................. 359

20.3 General Commands ........................................................................................ 362

20.4 Call Control Commands ................................................................................. 362

20.5 SIM Toolkit Commands ................................................................................. 365

20.6 Audio Commands ........................................................................................... 365

20.7 SMS Commands ............................................................................................. 365

20.8 GPRS Commands ........................................................................................... 366

20.9 TCPIP Commands .......................................................................................... 369

20.10 IP Commands ............................................................................................... 369

20.11 PING Commands .......................................................................................... 369

20.12 HTTP and FTP Commands .......................................................................... 371

20.13 GSM Location Commands ........................................................................... 371

20.14 EMAIL Commands ...................................................................................... 371

20.15 MMS Commands ......................................................................................... 372

20.16 DDET Commands ........................................................................................ 373

20.17 RECORD Commands................................................................................... 374

20.18 TTS Commands ............................................................................................ 376

21 ATC Differences among SIM800 Series .......................................... 377

21.1 AT+SIDET ...................................................................................................... 377

21.2 AT+CMIC ....................................................................................................... 377

21.3 AT+CBAND ................................................................................................... 378

21.4 AT+CHFA ....................................................................................................... 378

21.5 AT+SGPIO ..................................................................................................... 379

21.6 AT+SJDR ........................................................................................................ 379

21.7 AT+CREC ....................................................................................................... 380

21.8 AT+CTTSPARAM ......................................................................................... 380

21.9 AT+CADC ...................................................................................................... 380

21.10 AT+CSCLK .................................................................................................. 380

21.11 AT+CMMSDOWN ....................................................................................... 381

21.12 AT+CFGRI ................................................................................................... 381

21.13 AT+CLCK .................................................................................................... 382

21.14 Only Part of Projects Support Following AT Commands ............................ 382

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Version History

Version

Date Chapter What is new

V1.00 New version

V1.01 2013-07-23

All Modify GSM 07.05 to 3GPP TS 27.005,modify

GSM 07.07 to 3GPP TS 27.007

1.1 Scope of the document Add SIM800

2.2.8 ATH Delete ATH parameter [n]

2.2.12 +++ Change "0.5 second" to "1 second"

2.2.13 ATO Change "NO CARRIER" to "ERROR"

2.2.26 ATX Change default value from 0 to 4

2.2.32 AT&W Add AT+CFGRI,AT+CSGS

2.2.41.1 Auto-bauding Disable DTR auto-bauding

3.2.14 AT+CHLD Delete parameter of CHLD

3.2.18 AT+CLIP Change URC parameter

3.2.51 AT+CRSL Delete reference Note

3.2.7 AT+CEER Change description of 34 (emergency call not

possible)

4.2.10 AT+CRES Delete description of CSCB

4.2.11 AT+CSAS Delete description of CSCB

6.2.4 AT+CMIC Add reference Note

6.2.11 AT+CFGRI Add default value

6.2.16 AT+CCVM Modify Test Command response information

and parameter description

6.2.18 AT+CHF Add URC

6.2.26 AT+STTONE Change <duration> supported range;delete

reference note

6.2.27 AT+SIMTONE Modify last parameter of Test Command to

10-500000

6.2.48 AT+SLEDS Modify default value

6.2.55 AT+CSGS Add ATC

6.2.56 AT+CMICBIAS Add ATC

8.2.2 AT+CIPSTART Modify parameter

8.2.15 AT+CIPHEAD Modify parameter

8.2.20 AT+CIPSRIP Modify parameter

8.2.23 AT+CIPCCFG Modify write cmd parameters

8.2.26 AT+CIPRXGET Add "single IP & multi IP connection"

information

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9.2.1 AT+SAPBR Modify parameter

12.2.23 AT+FTPLIST Change "Execution Command" to "Write

Command"

14.2.8 AT+SMTPBODY Change "Execution Command" to "Write

Command"

14.2.10 AT+SMTPSEND Modify parameter

14.2.11 AT+SMTPFT Change "Execution Command" to "Write

Command"

15.2.15 AT+CMMSRECV Change reference note

15.2.21

AT+CMMSTIMEOUT

Change "milliseconds" to "seconds"

15.2.25 AT+CMMSSCONT

Modify parameter of Execution Command

17.2.1 AT+CREC Add note

18.2.2 AT+CTTSPARAM Modify parameter;add note

20.8 GPRS Commands Modify the CGQREQ example

20.17 RECORD Commands

Add example

3.2.17 AT+CLCK Add Max Response Time

3.2.22 AT+COPS Add Max Response Time

3.2.29 AT+CPWD Add Max Response Time

3.2.28 AT+CPIN Add Max Response Time

3.2.41 AT+VTS Add Max Response Time

3.2.44 AT+CPOL Add Max Response Time

3.2.45 AT+COPN Add Max Response Time

3.2.54 AT+CPUC Add Max Response Time

6.2.7 AT+CADC Add Max Response Time

6.2.23 AT+CCID Add Max Response Time

7.2.1 AT+CGATT Add Max Response Time

7.2.5 AT+CGACT Add Max Response Time

3.2.24 AT+CPBF Modify description of max response time

3.2.25 AT+CPBR Modify description of max response time

4.2.1 CMGD Modify description of max response time

4.2.3 CMGL Modify description of max response time

6.2.25 CMGDA Modify description of max response time

15.2.8 AT+CMMSSEND Modify description of max response time

15.2.15 AT+CMMSRECV Modify description of max response time

2.2.16 ATS0 Add parameter saving mode

2.2.20 ATS6 Add parameter saving mode

2.2.21 ATS7 Add parameter saving mode

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2.2.22 ATS8 Add parameter saving mode

2.2.26 ATX Add parameter saving mode

3.2.4 AT+CBST Add parameter saving mode

3.2.16 AT+CLCC Add parameter saving mode

3.2.12 AT+CSCS Add parameter saving mode

3.2.51 AT+CRSL Add parameter saving mode

3.2.52 AT+CLVL Add parameter saving mode

6.2.33 AT+CIURC Add parameter saving mode

6.2.53 AT_CSDT Add parameter saving mode

6.2.54 AT+CSMINS Add parameter saving mode

3.2.32 AT+CREG Modify parameter save mode

6.2.44 AT+SVR Modify parameter save mode

7.2.10 AT+CGREG Modify parameter save mode

3.2.24 AT+CPBS Delete parameter save mode

3.2.25 AT+CPBW Delete parameter save mode

V1.02 2013-10-23

2.2.28 AT&C Modify the format

3.2.5 AT+CCFC Change error word: <reads> to <reason>

3.2.33 AT+CRLP Add Save mode and reference

3.2.36 AT+FCLASS Modify information about +FCLASS

3.2.47 AT+CCLK Add note

4.2.5 AT+CMGS Add Note

6.2.18 AT+CHF Modify parameter range and note

6.2.19 AT+CHFA Add patameters of write command and test

command,modify note

6.2.20 AT+CSCLK Add new parameter and note

6.2.24 AT+CMTE Increase the temperature range

6.2.28 AT+CCPD Set default value

6.2.33 AT+CIURC Set default value

6.2.41 AT+SPWM Modify parameter direction and note

6.2.51 AT+CNETLIGHT Add test and read command

6.2.53 AT+CSDT Modify note

6.2.55 AT+CSGS Modify parameter default value

6.2.56 AT+CMICBIAS Add default value and modify parameter

description

6.2.57 AT+DTAM Add AT command

6.2.58 AT+SJDR Add AT command

6.2.59 AT+CPCMCFG Add AT command

6.2.60 AT+CPCMSYNC Add AT command

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6.2.61 AT+CANT Add AT command

6.2.62 AT+CAGCSET Add AT command

7.2.9 AT+CGEREP Modify parameter description and add URC

example

8.2.7 AT+CIPSHUT Add Max Response Time

8.2.10 AT+CIICR Add Max Response Time

8.2.21 AT+CIPDPDP Modify parameter’s scope

8.2.26 AT+CIPRXGET Modify parameter options

16.2.1 AT+DDET Add parameter and URC description in write

command,add note

17.2.1 AT+CREC Modify note

17.2.2 AT+CRECORD Add AT command

18.2.2 AT+CTTSPARAM Modify note and parameter default value

20.16 AT+DDET Modify AT+DDET example

21.5 AT+CTTSPARAM Add differences of some AT commands

21.6 AT+CHFA Add differences of some AT commands

AT+CEXTHS,AT+CEXBUT

Delete

All Add or modify Parameter Saving Mode and

Max Response Time

V1.03 2014-03-28

1.1 Scope of the document Add SIM800G

2.2.28 AT&C Modify parameter format

2.2.32 AT&W Modify parameter stored by &W

2.2.41 AT+IPR Add parameter description

3.2.6 AT+CCWA Modify <status> decription

3.2.24 AT+CPBS Add “FD” phonebook

3.2.46 AT+CALS Add parameter <switch> for playing/stopping

tone

5.2.1 AT+STKTRS Modify the length of parameter

6.2.1 AT+SIDET Extend parameter <channel>

6.2.4 AT+CMIC Extend parameter <channel>, add default value

description in note

6.2.5 AT+CALA Modify indicate expired alarm

6.2.13 AT+CLDTMF

Extend parameter <DTMF string> and add

parameter <timeBase>, add the funcion that

local DTMF tone can be played in call.

6.2.56 AT+CMICBIAS Add note description

6.2.58 AT+SJDR Modify format error

6.2.63 AT+SD2PCM Add AT command

6.2.64 AT+SKPD Add AT command

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6.2.65 AT+SIMTONEX Add AT command

6.2.66 AT+CROAMING Add AT command

6.2.67 AT+CNETSCAN Add AT command

8.2.23 AT+CIPCCFG Modify wait time’s interval

12.2.24 AT+FTPGETTOFS Add AT command

16.2.1 AT+DDET Modify description about <key> parameter, add

<ssdet> parameter

17.2.1 AT+CREC

Modify <location> and AT+CREC=8

description,add read length limit and AMR

support description in note

18.2.3 AT+CTTSRING Add command AT+CTTSRING

20.6 Audio command Add AT+CLDTMF example

20.11 PING Commands Add other device ping to the modem

21.6 AT+CHFA Modify description

21.7 AT+CMIC Add difference desription

21.8 AT+SIDET Add difference desription

AT+FCLASS

AT+FMI

AT+FMM

AT+FMR

Delete

V1.04 2014-06-10

1.1 Scope of the document Add SIM800W16, SIM840W16,

SIM800-WB64, SIM808

2.2.27 ATZ Modify note

2.2.30 AT&F Modify note

2.2.32 AT&W Modify note

3.2.46 AT+CALS Modify <switch> descripton

4.2.8 AT+CNMI Add the " [alpha>], " string

6.2.1 AT+SIDET Modify note

6.2.4 AT+CMIC Modify note

6.2.8 AT+CSNS Modify parameter save mode

6.2.13 AT+CLDTMF Modify note

6.2.17 AT+CBAND Modify note

6.2.18 AT+CHF Modify note

6.2.19 AT+CHFA Modify note

6.2.40 AT+SGPIO Modify note

6.2.41 AT+SPWM Extend the scope of parameter <freq> to

"0-100000"

6.2.58 AT+SJDR Modify note

6.2.59 AT+CPCMCFG Modify note

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6.2.60 AT+CPCMSYNC Modify note

6.2.62 AT+CANT Modify note

6.2.63 AT+SD2PCM Modify note

6.2.64 AT+SKPD Modify note

6.2.66 AT+CROAMING Modify AT+CROAMING command’s format

6.2.67 AT+CNETSCAN Modify AT+CNETSCAN command’s function

and note

6.2.68 AT+CMNRP Add AT command

8.2.2 AT+CIPSTART Modify max response time

8.2.30 AT+CIPTKA Add AT command

10.2.4 AT+CIPBEIPING Add AT command

12.2.2 AT+FTPMODE Modify test and write command

12.2.14 AT+FTPGET Modify note, Add "Manual quit" to <error>

12.2.23 AT+FTPLIST Modify note

12.2.24 AT+FTPGETTOFS Add read command

12.2.25

AT+FTPPUTFRMFS Add AT command

12.2.26 AT+FTPEXTGET Add AT command

12.2.27 AT+FTPFILEPUT Add AT command

12.2.28 AT+FTPQUIT Add AT command

13.2.1 AT+CIPGSMLOC Modify max response time

16.2.1 AT+DDET Modify response value of test command

17.2.1 AT+CREC Modify parameter description and note

18 Modify note

19.3 URC Add URC of

AT+CGREG,AT+CALA,AT+CIURC,AT+CNMI

20.2 SIM commands Modify response of AT+CPBS=?

21 Modify ATC difference

21.4 AT+CHFA Add PCM channel in SIM800 and

SIM800-WB64

V1.05 2014-07-31

All Change SIM800-WB64 to SIM800M64

6.2.21 AT+CENG Add format description of part parameters

6.2.40 AT+SGPIO Extend the scope of parameter <GPIO> to "1-7"

6.2.69 AT+CEGPRS Add AT command

12.2.24 AT+FTPGETTOFS Modify description of <loc>

14.2.14 AT+POP3IN Add description of <code> value 69

14.2.22 AT+POP3OUT Add description of <code> value 69

21.2 AT+CMIC Modify

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21.5 AT+SGPIO Modify difference

21.9 AT+CADC Add difference

21.10 AT+CSCLK Add difference

21.13 Add GPIO difference

1.06 2014-10-28

6.2.52 AT+CWHITELIST Extend the scope of parameter <mode> to "0-3"

6.2.70 AT+CGPIO Add AT command

6.2.71 AT+CMEDPLAY Add AT command

6.2.72 AT+CMEDIAVOL Add AT command

8.2.14 AT+CDNSGIP Add error code

12.2 Modify max response time

17.2.1 AT+CREC Modify note

19.3 Modify note

1.07 2014-12-19

1.1 Scope of the document Add SIM800C

2.2.16 ATS0 Modify note

6.2.20 AT+CSCLK Modify note

6.2.73 AT+SNDLEVEL Add AT command

21 Add differences of SIM800C

1.08 2015-05-12

6.2.55 AT+CSGS Extend the scope of parameter <mode> to "0-2"

6.2.74 AT+ECHARGE Add AT command

6.2.75 AT+SIMTIMER Add AT command

6.2.76 AT+SPE Add AT command

17.2.1 AT+CREC Modify note

19.1 Change CME error codes from 810~824 to

600~614

21.13 Add AT+ECHARGE,AT+SIMTIMER,AT+SPE

1.09 2015-08-03

1.1 Scope of the document Add SIM800A, SIM800F, SIM800C-DS

6.2.21 AT+CENG Extend the scope of parameter <mode> to "0-4"

and modify note

6.2.65 AT+SIMTONEX Modify note

6.2.70 AT+CGPIO Modify response value of test command

6.2.71 AT+CMEDPLAY Modify note

6.2.77 AT+CCONCINDEX Add AT command

6.2.78 AT+SDMODE Add AT command

6.2.79 AT+SRSPT Add AT command

11.2.9 AT+HTTPHEAD Add AT command

15.2.6 AT+CMMSDOWN Modify <type> parameter

17.2.1 AT+CREC Modify note

19.3 Delete URC of "AT+CENG" when <mode>=3

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20.2 SIM commands Add examples of "AT+CENG"

21.11 AT+CMMSDOWN Add difference of "AT+CMMSDOWN"

21.12 AT+CFGRI Add difference of "AT+CFGRI"

21 Add differences of SIM800A,SIM800F and

SIM800C-DS

1.10 2016-05-18

1.1 Scope of the document Add SIM868

3.2.17 AT+CLCK Modify note

3.2.52 AT+CBC Modify note

4.2.15 AT+CSMP Modify note

6.2.11 AT+CFGRI Modify note

6.2.12 AT+CLTS Modify parameter <dst> and note

6.2.21 AT+CENG Modify note

6.2.24 AT+CMTE Modify range of <Temperature>

6.2.58 AT+SJDR Modify write command and note

6.2.71 AT+CMEDPLAY Modify note

6.2.80 AT+CELLIST Add AT command

6.2.81 AT+CLIST Add AT command

6.2.82 AT+CBATCHK Add AT command

7.2.1 AT+CGATT Modify max response time

8.2.6 AT+CIPCLOSE Modify note

8.2.9 AT+CSTT Modify note of parameters

8.2.11 AT+CIFSR Modify note

11.2.5 AT+HTTPACTION Extend the scope of parameter <Method> to

"0-3"

14.2.4 AT+SMTPAUTH Modify response of test command

15.2.17 AT+CMMSREAD Add description of <name>

16.2.1 AT+DDET Modify value of <key>

18.2.1 AT+CTTS Modify description of <mode>

20.2 Add examples of AT+CELLIST

21.7 AT+CREC Modify note

21.13 AT+CLCK Add difference

21.4 Add difference

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1 Introduction

1.1 Scope of the document

This document presents the AT Command Set for SIMCom SIM800 Series, including SIM800V,

SIM840V, SIM800W, SIM840W, SIM800W16, SIM840W16, SIM800L, SIM800H, SIM800,

SIM800M64, SIM800G, SIM808, SIM800C, SIM800A, SIM800F, SIM800C-DS and SIM868.

1.2 Related documents

You can visit the SIMCom Website using the following link:

http://www.sim.com

1.3 Conventions and abbreviations

In this document, the GSM engines are referred to as following term:

ME (Mobile Equipment);

MS (Mobile Station);

TA (Terminal Adapter);

DCE (Data Communication Equipment) or facsimile DCE (FAX modem, FAX board);

In application, controlling device controls the GSM engine by sending AT Command via its

serial interface. The controlling device at the other end of the serial line is referred to as

following term:

TE (Terminal Equipment);

DTE (Data Terminal Equipment) or plainly "the application" which is running on an embedded

system;

1.4 AT Command syntax

The "AT" or "at" or “aT” or “At”prefix must be set at the beginning of each Command line. To

terminate a Command line enter <CR>.

Commands are usually followed by a response that includes.

"<CR><LF><response><CR><LF>"

Throughout this document, only the responses are presented, <CR><LF> are omitted

intentionally.

The AT Command set implemented by SIM800 Series is a combination of 3GPP TS 27.005,

3GPP TS 27.007 and ITU-T recommendation V.25ter and the AT commands developed by

SIMCom.

Note: A HEX string such as "00 49 49 49 49 FF FF FF FF" will be sent out through serial port at the baud

rate of 115200 immediately after SIM800 Series is powered on. The string shall be ignored since it is used for

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synchronization with PC tool. Only enter AT Command through serial port after SIM800 Series is powered on

and Unsolicited Result Code "RDY" is received from serial port. If auto-bauding is enabled, the Unsolicited

Result Codes "RDY" and so on are not indicated when you start up the ME, and the "AT" prefix, or "at"

prefix must be set at the beginning of each command line.

All these AT commands can be split into three categories syntactically: "basic", "S parameter",

and "extended". These are as follows:

1.4.1 Basic syntax

These AT commands have the format of "AT<x><n>", or "AT&<x><n>", where "<x>"is the

Command, and "<n>"is/are the argument(s) for that Command. An example of this is "ATE<n>",

which tells the DCE whether received characters should be echoed back to the DTE according to

the value of "<n>". "<n>" is optional and a default will be used if missing.

1.4.2 S Parameter syntax

These AT commands have the format of "ATS<n>=<m>", where "<n>" is the index of the S

register to set, and "<m>"is the value to assign to it. "<m>" is optional; if it is missing, then a

default value is assigned.

1.4.3 Extended Syntax

These commands can operate in several modes, as in the following table:

Table 1: Types of AT commands and responses

Test Command AT+<x>=? The mobile equipment returns the list of parameters

and value ranges set with the corresponding Write

Command or by internal processes.

Read Command AT+<x>? This command returns the currently set value of the

parameter or parameters.

Write Command AT+<x>=<…> This command sets the user-definable parameter

values.

Execution Command AT+<x> The execution command reads non-variable

parameters affected by internal processes in the GSM

engine.

1.4.4 Combining AT commands on the same Command line

You can enter several AT commands on the same line. In this case, you do not need to type the

"AT" or "at" prefix before every command. Instead, you only need type "AT" or "at" the

beginning of the command line. Please note to use a semicolon as the command delimiter after

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an extended command; in basic syntax or S parameter syntax, the semicolon need not enter, for

example: ATE1Q0S0=1S3=13V1X4;+IFC=0,0;+IPR=115200;&W.

The Command line buffer can accept a maximum of 556 characters (counted from the first

command without “AT” or “at” prefix). If the characters entered exceeded this number then none

of the Command will executed and TA will return "ERROR".

1.4.5 Entering successive AT commands on separate lines

When you need to enter a series of AT commands on separate lines, please Note that you need to

wait the final response (for example OK, CME error, CMS error) of last AT Command you

entered before you enter the next AT Command.

1.5 Supported character sets

The SIM800 Series AT Command interface defaults to the IRA character set. The SIM800 Series

supports the following character sets:

GSM format

UCS2

HEX

IRA

PCCP

PCDN

8859-1

The character set can be set and interrogated using the "AT+CSCS" Command (3GPP TS

27.007). The character set is defined in GSM specification 3GPP TS 27.005.

The character set affects transmission and reception of SMS and SMS Cell Broadcast messages,

the entry and display of phone book entries text field and SIM Application Toolkit alpha strings.

1.6 Flow control

Flow control is very important for correct communication between the GSM engine and DTE.

For in the case such as a data or fax call, the sending device is transferring data faster than the

receiving side is ready to accept. When the receiving buffer reaches its capacity, the receiving

device should be capable to cause the sending device to pause until it catches up.

There are basically two approaches to achieve data flow control: software flow control and

hardware flow control. SIM800 Series support both two kinds of flow control.

In Multiplex mode, it is recommended to use the hardware flow control.

1.6.1 Software flow control (XON/XOFF flow control)

Software flow control sends different characters to stop (XOFF, decimal 19) and resume (XON,

decimal 17) data flow. It is quite useful in some applications that only use three wires on the

serial interface.

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The default flow control approach of SIM800 Series is hardware flow control (RTS/CTS flow

control), to enable software flow control in the DTE interface and within GSM engine, type the

following AT Command:

AT+IFC=1, 1

This setting is stored volatile, for use after restart, AT+IFC=1, 1 should be stored to the user

profile with AT&W.

NOTE:

The AT commands listed in the table of AT&W chapter should be stored to user profile with

AT&W for use after restart. Most other AT commands in V.25, 3GPP TS 27.005, 3GPP TS

27.007,GPRS will store parameters automatically and can be used after module restart.

Ensure that any communications software package (e.g. Hyper terminal) uses software flow

control.

NOTE:

Software Flow control should not be used for data calls where binary data will be transmitted or

received (e.g. TCP/IP) as the DTE interface may interpret binary data as flow control characters.

1.6.2 Hardware flow control (RTS/CTS flow control)

Hardware flow control achieves the data flow control by controlling the RTS/CTS line. When the

data transfer should be suspended, the CTS line is set inactive until the transfer from the

receiving buffer has completed. When the receiving buffer is ok to receive more data, CTS goes

active once again.

To achieve hardware flow control, ensure that the RTS/CTS lines are present on your application

platform.

1.7 Definitions

1.7.1 Parameter Saving Mode

For the purposes of the present document, the following syntactical definitions apply:

l NO_SAVE: The parameter of the current AT command will be lost if module is rebooted or

current AT command doesn't have parameter.

l AUTO_SAVE: The parameter of the current AT command will be kept in NVRAM

automatically, and it won't be lost if module is rebooted.

l AT&W_SAVE: The parameter of the current AT command will be kept in NVRAM by

sending the command of "AT&W".

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1.7.2 Max Response Time

Max response time is estimated maximum time to get response, the unit is seconds.

"-" means this AT command doesn’t care the response time.

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2 AT Commands According to V.25TER

These AT Commands are designed according to the ITU-T (International Telecommunication

Union, Telecommunication sector) V.25ter document.

2.1 Overview of AT Commands According to V.25TER

Command Description

A/ Re-issues the last command given

ATA Answer an incoming call

ATD Mobile originated call to dial a number

ATD><N> Originate call to phone number in current memory

ATD><STR> Originate call to phone number in memory which corresponds to field

<str>

ATDL Redial last telephone number used

ATE Set command echo mode

ATH Disconnect existing connection

ATI Display product identification information

ATL Set monitor speaker loudness

ATM Set monitor speaker mode

+++ Switch from data mode or ppp online mode to command mode

ATO Switch from command mode to data mode

ATP Select pulse dialling

ATQ Set result code presentation mode

ATS0 Set number of rings before automatically answering the call

ATS3 Set command line termination character

ATS4 Set response formatting character

ATS5 Set command line editing character

ATS6 Pause before blind dialling

ATS7 Set number of seconds to wait for connection completion

ATS8 Set number of seconds to wait for comma dial modifier encountered in

dial string of D command

ATS10 Set disconnect delay after indicating the absence of data carrier

ATT Select tone dialing

ATV TA response format

ATX Set connect result code format and monitor call progress

ATZ Reset default configuration

AT&C Set DCD function mode

AT&D Set DTR function mode

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AT&F Factory defined configuration

AT&V Display current configuration

AT&W Store active profile

AT+GCAP Request complete TA capabilities list

AT+GMI Request manufacturer identification

AT+GMM Request TA model identification

AT+GMR Request TA revision identification of software release

AT+GOI Request global object identification

AT+GSN Request TA serial number identification (IMEI)

AT+ICF Set TE-TA control character framing

AT+IFC Set TE-TA local data flow control

AT+IPR Set TE-TA fixed local rate

AT+HVOIC Disconnect voice call only

2.2 Detailed Description of AT Commands According to V.25TER

2.2.1 A/ Re-issues the Last Command Given

A/ Re-issues the Last Command Given

Execution

Command

A/

Response

Re-issues the previous Command

Reference

V.25ter

Note

2.2.2 ATA Answer an Incoming Call

ATA Answer an Incoming Call

Execution

Command

ATA

Response

TA sends off-hook to the remote station.

Note1: Any additional commands on the same Command line are ignored.

Note2: This c

ommand may be aborted generally by receiving a character

during execution. The aborting is not possible during some states of

connection establishment such as handshaking.

Response in case of data call, if successfully connected

CONNECT<text> TA switches to data mode.

Note: <text> output only if ATX<value>

parameter setting with the

<value>>0

When TA returns to Command mode after call release

OK

Response in case of voice call, if successfully connected

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OK

Response if no connection

NO CARRIER

Parameter Saving

Mode

NO_SAVE

Max Response

Time

20s(voice call)

Timeout set with ATS7 (data call)

Reference

V.25ter

Note

See also ATX

2.2.3 ATD Mobile Originated Call to Dial A Number

ATD Mobile Originated Call to Dial A Number

Execution

Command

ATD<n>[<mgsm

][;]

Response

This command can be used to set up outgoing voice, data or fax calls

. It also

serves to control supplementary services.

Note: This command may be aborted generally by receiving an

ATH

Command or a character during execution. The aborting is not possible

during some states of connection establishment such as handshaking.

If error is related to ME functionality

+CME ERROR: <err>

If no dial tone and (parameter setting ATX2 or ATX4)

NO DIALTONE

If busy and (parameter setting ATX3 or ATX4)

BUSY

If a connection cannot be established

NO CARRIER

If the remote station does not answer

NO ANSWER

If connection successful and non-voice call.

CONNECT<text> TA switches to data mode.

Note: <text> output only if ATX<value>

parameter setting with the

<value> >0

When TA returns to command mode after call release

OK

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If connection successful and voice call

OK

Parameters

<n> String of dialing digits and optionally V.25ter modifiers dialing

digits: 0-9, * , #, +, A, B, C

Following V.25ter modifiers are ignored:

,(comma), T, P, !, W, @

Emergency call:

<n> Standardized emergency number 112 (no SIM needed)

<mgsm> String of GSM modifiers:

I Actives CLIR (Disables presentation of own number to

called party)

i Deactivates CLIR (Enable presentation of own number

to called party)

G Activates Closed User Group invocation for this call

only

g Deactivates Closed User Group invocation for this call

only

<;> Only required to set up voice call , return to Command state

Parameter Saving

Mode

NO_SAVE

Max Response

Time

20s(voice call)

Timeout set with ATS7 (data call)

Reference

V.25ter

Note

Parameter "I" and "i" only if no *# code is within the dial string

<n> is default for last number that can be dialed by ATDL

*# codes sent with ATD

are treated as voice calls. Therefore, the Command

must be terminated with a semicolon ";"

See ATX Command for setting result code and call monitoring parameters.

Responses returned after dialing with ATD

For voice call two different responses mode can be determined. TA

returns

"OK"

immediately either after dialing was completed or after the call is

established. The setting is controlled by AT+COLP

. Factory default is

AT+COLP=0, this cause the TA returns "OK"

immediately after dialing

was completed, otherwise TA will returns "OK", "BUSY", "NO DIAL

TONE", "NO CARRIER".

Using ATD during an active voice call:

When a user

originates a second voice call while there is already an active

voice call, the first call will be automatically put on hold.

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The current states of all calls can be easily checked at any time by using the

AT+CLCC Command.

2.2.4 ATD><n> Originate Call to Phone Number in Current Memory

ATD><n> Originate Call to Phone Number in Current Memory

Execution

Command

ATD><n>[<clir>

][<cug>][;]

Response

This c

ommand can be used to dial a phone number from current phonebook

memory.

Note: This command may be aborted generally by receiving an

ATH

c

ommand or a character during execution. The aborting is not possible

during some states of connection establishment such as handshaking.

If error is related to ME functionality

+CME ERROR: <err>

If no dial tone and (parameter setting ATX2 or ATX4)

NO DIALTONE

If busy and (parameter setting ATX3 or ATX4)

BUSY

If a connection cannot be established

NO CARRIER

If the remote station does not answer

NO ANSWER

If connection successful and non-voice call.

CONNECT<text> TA switches to data mode.

Note: <text> output only if ATX<value>

parameter setting with the

<value> >0

When TA returns to command mode after call release

OK

If successfully connected and voice call

OK

Parameters

<n> Integer type memory location should be in the range of locations

available in the memory used

<mgsm> String of GSM modifiers:

<clir>

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I Override the CLIR supplementary service subscription

default value for this call

Invocation (restrict CLI presentation)

i Override the CLIR supplementary service subscription

default value for this call

Suppression (allow CLI presentation)

<cug>

G Control the CUG supplementary service information

for this call

CUG Not supported

g Control the CUG supplementary service information

for this call

CUG Not supported

<;> Only required to set up voice call , return to command state

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

Parameter "I" and "i" only if no *# code is within the dial string

*# codes sent with ATD are treated as voice calls. Therefore, the c

ommand

must be terminated with a semicolon ";"

See ATX Command for setting result code and call monitoring parameters.

2.2.5 ATD><str> Originate Call to Phone Number in Memory Which Corresponds to

Field <str>

ATD><str> Originate Call to Phone Number in Memory Which Corresponds to Field

<str>

Execution

Command

ATD><str>[<clir

>][<cug>][;]

Response

This command make the TA

attempts to set up an outgoing call to stored

number.

All available memories are searched for the entry <str>.

Note: This command may be aborted generally by receiving an

ATH

Command or a character during execution. The aborting is not possible

during some states of connection establishment such as handshaking.

If error is related to ME functionality

+CME ERROR: <err>

If no dial tone and (parameter setting ATX2 or ATX4)

NO DIALTONE

If busy and (parameter setting ATX3 or ATX4)

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BUSY

If a connection cannot be established

NO CARRIER

If the remote station does not answer

NO ANSWER

If connection successful and non-voice call.

CONNECT<text> TA switches to data mode.

Note: <text> output only if ATX<value>

parameter setting with the

<value> >0

When TA returns to command mode after call release

OK

If successfully connected and voice call

OK

Parameters

<str> String type (string should be included in quotation marks) value

("x"), which should equal to an alphanumeric field in at least one phone

book entry in the searched memories. <str> formatted as current TE

character set specified by +CSCS.

<mgsm> String of GSM modifiers:

I Actives CLIR (Disables presentation of own number to

called party)

i Deactivates CLIR (Enable presentation of own number to

called party)

G Activates Closed User Group invocation for this call only

g Deactivates Closed User Group invocation for this call only

<;> Only required to set up voice call, return to Command state

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

Parameter "I" and "i" only if no "*#" code is within the dial string

*# codes sent with ATD

are treated as voice calls. Therefore, the Command

must be terminated with a semicolon ";"

See ATX Command for setting result code and call monitoring parameters.

2.2.6 ATDL Redial Last Telephone Number Used

ATDL Redial Last Telephone Number Used

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Execution

Command

ATDL

Response

This command redials the last voice and data call number used.

Note: This command may be aborted generally by receiving an

ATH

Command or a character during execu

tion. The aborting is not possible

during some states of connection establishment such as handshaking.

If error is related to ME functionality

+CME ERROR: <err>

If no dial tone and (parameter setting ATX2 or ATX4)

NO DIALTONE

If busy and (parameter setting ATX3 or ATX4)

BUSY

If a connection cannot be established

NO CARRIER

If the remote station does not answer

NO ANSWER

If connection successful and non-voice call.

CONNECT<text> TA switches to data mode.

Note: <text> output only if ATX<value> paramete

r setting with the

<value> >0

When TA returns to Command mode after call release

OK

If successfully connected and voice call

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

See ATX Command for setting result code and call monitoring parameters.

Return the numbers and symbols which ATD

supports if there is no last

dialing context.

2.2.7 ATE Set Command Echo Mode

ATE Set Command Echo Mode

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Execution

Command

ATE<value>

Response

This setting determines whether or not the TA

echoes characters received

from TE during Command state.

OK

Parameters

<value> 0 Echo mode off

1 Echo mode on

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.8 ATH Disconnect Existing Connection

ATH Disconnect Existing Connection

Execution

Command

ATH

Response

Disconnect existing call by local TE from Command line and terminate call

OK

Note: OK is issued after circuit 109(DCD) is turned off, if it was previously

on.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

20s

Reference

V.25ter

Note

2.2.9 ATI Display Product Identification Information

ATI Display Product Identification Information

Execution

Command

ATI

Response

TA issues product information text

Example:

SIM800 R11.08

OK

Parameter S

aving

Mode

NO_SAVE

Max Response -

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Time

Reference

V.25ter

Note

2.2.10 ATL Set Monitor speaker loudness

ATL Set Monitor speaker loudness

Execution

Command

ATL<value>

Response

OK

Parameters

<value> 0..9 Volume

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

No effect in GSM

2.2.11 ATM Set Monitor Speaker Mode

ATM Set Monitor Speaker Mode

Execution

Command

ATM<value>

Response

OK

Parameters

<value> 0..9 Mode

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

No effect in GSM

2.2.12 +++ Switch from Data Mode or PPP Online Mode to Command Mode

+++ Switch from Data Mode or PPP Online Mode to Command Mode

Execution

Command

+++

Response

The +++ character sequence causes the TA to cancel the data flow over the

AT interface and switch to Command mode. This allows you to enter AT

Command while maintaining the data connection to the remote server.

OK

To prevent the +++

escape sequence from being misinterpreted as data, it

should comply to following sequence:

No characters entered for T1 time (1 second)

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"+++" characters entered with no characters in between (1 second)

No characters entered for T1 timer (1 second)

Switch to Command mode, otherwise go to step 1.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

To return from Command mode back to data mode: Enter ATO.

2.2.13 ATO Switch from Command Mode to Data Mode

ATO Switch from Command Mode to Data Mode

Execution

Command

ATO[n]

Response

TA resumes the connection and switches back from c

ommand mode to data

mode.

CONNECT

If connection is not successfully resumed

ERROR

else

TA returns to data mode from command mode CONNECT <text>

Note: <text> only if parameter setting ATX>0

Parameter

<n> 0 Switch from command mode to data mode.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.14 ATP Select Pulse Dialling

ATP Select Pulse Dialling

Execution

Command

ATP

Response

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

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Reference

V.25ter

Note

No effect in GSM

2.2.15 ATQ Set Result Code Presentation Mode

ATQ Set Result Code Presentation Mode

Execution

Command

ATQ<n>

Response

This parameter setting determines whether or not the TA transmits any result

code to the TE. Info

rmation text transmitted in response is not affected by

this setting.

If <n>=0:

OK

If <n>=1:

(none)

Parameters

<n> 0 TA transmits result code

1 Result codes are suppressed and not transmitted

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.16 ATS0 Set Number of Rings before Automatically Answering the Call

ATS0 Set Number of Rings before Automatically Answering the Call

Read Command

ATS0?

Response

<n>

OK

Parameters

See Write Command

Write Command

ATS0=<n>

Response

This parameter setting determines the number of rings before auto-answer.

OK

ERROR

Parameters

<n> 0 Automatic answering is disable.

1-255 Number of rings the modem will wait for before answering

the phone if a ring is detected.

Para

meter Saving

Mode

AT&W_SAVE

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Max Response

Time

-

Reference

V.25ter

Note

If <n>

is set too high, the calling party may hang up before the call can be

answered automatically.

If using cmux port, ATH and AT+CHUP can hang up the call

(automatically answering) only in the CMUX channel 0.

If using dual-physical serial port, ATH and AT+CHUP can hang up the call

(automatically answering) only in UART1.

2.2.17 ATS3 Set Command Line Termination Character

ATS3 Set Command Line Termination Character

Read Command

ATS3?

Response

<n>

OK

Parameters

See Write Command

Write Command

ATS3=<n>

Response

This parameter setting determines the character recognized by TA to

terminate an incoming c

ommand line. The TA also returns this character in

output.

OK

ERROR

Parameters

<n> 13 Command line termination character

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

Default 13 = CR. It only supports default value.

2.2.18 ATS4 Set Response Formatting Character

ATS4 Set Response Formatting Character

Read Command

ATS4?

Response

<n>

OK

Parameters

See Write Command

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Write Command

ATS4=<n>

Response

This parameter setting determines the character generated by the TA for

result code and information text.

OK

ERROR

Parameters

<n> 10 Response formatting character

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

Default 10 = LF. It only supports default value.

2.2.19 ATS5 Set Command Line Editing Character

ATS5 Set Command Line Editing Character

Read Command

ATS5?

Response

<n>

OK

Parameters

See Write Command

Write Command

ATS5=<n>

Response

This parameter setting determines the character recognized by TA as a

request to delete from the c

ommand line the immediately preceding

character.

OK

ERROR

Parameters

<n> 0-8-127 Response formatting character

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

Default 8 = Backspace.

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2.2.20 ATS6 Pause Before Blind Dialling

ATS6 Pause Before Blind Dialling

Read Command

ATS6?

Response

<n>

OK

Write Command

ATS6=<n>

Response

OK

ERROR

Parameters

<n> 0..999 Time

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

No effect in GSM

2.2.21 ATS7 Set Number of Seconds to Wait for Connection Completion

ATS7 Set Number of Seconds to Wait for Connection Completion

Read Command

ATS7?

Response

<n>

OK

Parameters

See Write Command

Write Command

ATS7=<n>

Response

This parameter setting determines the amount of time to wait for the

connection completion in case of answering or originating a call.

OK

ERROR

Parameters

<n> 1-60-255 Number of seconds to wait for connection completion

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

If called party has specified a high value for ATS0=<n>, call setup may fail.

The correlation between ATS7 and ATS0 is important

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Example: Call may fail if ATS7=30 and ATS0=20.

ATS7 is only applicable to data call.

2.2.22 ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in

Dial String of D Command

ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in

Dial

String of D Command

Read Command

ATS8?

Response

<n>

OK

Parameters

See Write Command

Write Command

ATS8=<n>

Response

OK

ERROR

Parameters

<n> 0-255 The value of this register determines how long the modem

should pause when it sees a comma in the dialing string.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

No effect in GSM

2.2.23 ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier

ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier

Read Command

ATS10?

Response

<n>

OK

Parameters

See Write Command

Write Command

ATS10=<n>

Response

This parameter setting determines the amount of time that the TA will

remain connected in absence of data carrier. If the data carrier is once more

detected before disconnecting, the TA remains connected.

OK

ERROR

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Parameters

<n> 1-15-254 Number of tenths seconds of delay

Parameter Sa

ving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.24 ATT Select Tone Dialing

ATT Select Tone Dialing

Execution

Command

ATT

Response

OK

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.25 ATV TA Response Format

ATV TA Response Format

Execution

Command

ATV<value>

Response

This parameter setting determines the contents of the header and trailer

transmitted with result codes and information responses.

When <value>=0

0

When <value>=1

OK

Parameters

<value> 0 Information response: <text><CR><LF>

Short result code format: <numeric code><CR>

1 Information response: <CR><LF><text><CR><LF>

Long result code format: <CR><LF><verbose code>

The result codes, their numeric equivalents and b

rief descriptions of the use

of each are listed in the following table.

Parameter Saving

Mode

AT&W_SAVE

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Max Response

Time

-

Reference

V.25ter

Note

ATV1 ATV0 Description

OK 0 Acknowledges execution of a Command

CONNECT 1 A connection has been establ

ished; the DCE is moving from

Command state to online data state

RING 2

The DCE has detected an incoming call signal from

network

NO CARRIER 3

The connection has been terminated or the attempt to

establish a connection failed

ERROR 4 Command not recogni

zed, Command line maximum length

exceeded, parameter value invalid, or other problem with

processing the Command line

NO DIALTONE

6 No dial tone detected

BUSY 7 Engaged (busy) signal detected

NO ANSWER 8 "@" (Wait for Quiet Answer) dial modifier was use

d, but

remote ringing followed by five seconds of silence was not

detected before expiration of the connection timer (S7)

PROCEEDING 9 An AT command is being processed

CONNECT

<text>

Manufacturer-

specific

Same as CONNECT, but includes manufacturer-specific

text that may specify DTE speed, line speed, error control,

data compression, or other status

2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress

ATX Set CONNECT Result Code Format and Monitor Call Progress

Execution

Command

ATX<value>

Response

This parameter setting determines whether or not the TA detected the

presence of dial tone and busy signal and whether or not TA transmits

particular result codes.

OK

ERROR

Parameters

<value> 0 CONNECT result code only returned, dial tone and busy

detection are both disabled.

1 CONNECT<text> result code only returned, dial tone and

busy detection are both disabled.

2 CONNECT<text> result code returned, dial tone

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detection is enabled, busy detection is disabled.

3 CONNECT<text> result code returned, dial tone

detection is disabled, busy detection is enabled.

4 CONNECT<text> result code returned, dial tone and

busy detection are both enabled.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.27 ATZ Reset Default Configuration

ATZ Reset Default Configuration

Execution

Command

ATZ[<value>]

Response

TA sets all current parameters to the user defined profile.

OK

ERROR

Parameters

<value> 0 Restore profile 0

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

Parameter impacted by Z command: refer to AT&W

NOTE:

Parameters related to uart operation, like csclk, ipr, icf, ifc and cmnrp, will not be reset to default configuration.

2.2.28 AT&C Set DCD Function Mode

AT&C Set DCD Function Mode

Execution

Command

AT&C<value>

Response

This parameter determines how the state of circuit 109 (DCD)

relates to the

detection of received line signal from the distant end.

OK

ERROR

Parameters

<value> 0 DCD line is always ON

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1 DCD

line is ON only in the presence of data carrier

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.29 AT&D Set DTR Function Mode

AT&D Set DTR Function Mode

Execution

Command

AT&D[<value>]

Response

This parameter determines how the TA responds when circuit 108/2

(DTR)

is changed from the ON to the OFF condition during data mode.

OK

ERROR

Parameters

<value> 0 TA ignores status on DTR.

1 ON->OFF on DTR: Change to Command mode with

remaining the connected call.

2 ON->OFF on DTR: Disconnect call, change to Command

mode. During state DTR = OFF is auto-answer off.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.30 AT&F Factory Defined Configuration

AT&F Factory Defined Configuration

Execution

Command

AT&F[<value>]

Response

TA sets all current parameters to the manufacturer defined profile.

OK

Parameters

<value> 0 Set all TA parameters to manufacturer defaults.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

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V.25ter

Parameter impacted by &F command: refer to AT&W

NOTE:

Parameters related to uart operation, like csclk, ipr, icf, ifc and cmnrp, will not be reset to default configuration.

2.2.31 AT&V Display Current Configuration

AT&V Display Current Configuration

Execution

Command

AT&V[<n>]

Response

TA returns the current parameter setting.

OK

ERROR

Parameters

<n> 0 Responses in numeric format

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.32 AT&W Store Active Profile

AT&W Store Active Profile

Execution

Command

AT&W[<n>]

Response

TA stores the current parameter setting in the user defined profile.

OK

ERROR

Parameters

<n> 0 Store the current configuration in profile 0

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

The user defined profile is stored in non volatile memory.

Parameter stored by &W

Command Parameter name Displayedby &V

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SIM800 Series_AT Command Manual_V1.10 48 2016-02-01

ATS0 <num> Y

ATS3 <char> Y

ATS4 <char> Y

ATS5 <char> Y

ATS6 <short> Y

ATS7 <time> Y

ATS8 <time> Y

ATS10 <time> Y

AT+CBST <speed>,<name>,<ce> Y

AT+CRLP <iws>,<mws>,<T1>,<N2> Y

ATV <format> Y

ATE <echo> Y

ATQ <result> Y

ATX <result> Y

AT&C <behavior> Y

AT&D <behavior> Y

AT+CLTS <timestamp> Y

AT+CREG <n> Y

AT+CGREG <n> Y

AT+CMEE <n> Y

AT+CSCLK <n> Y

AT+CIURC <mode> Y

AT+CFGRI <mode> Y

AT+CMTE <mode> Y

AT+CANT <mode>,<UrcEnable>,<timer> Y

AT+STKPCIS <switch> Y

AT+CMGF <mode> Y

AT+CNMI <mode>,<mt>,<bm>,<ds>,<bfr>

Y

AT+CSCS <chest> Y

AT+VTD <n> Y

AT+CALS <n> Y

AT+CHF <ind> Y

AT+CAAS <mode> Y

AT+CBUZZERRING

<mode> Y

AT+DDET <n> Y

AT+MORING <mode> Y

AT+SVR <voice_rate_coding> Y

AT+CCPD <mode> Y

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AT+CSGS <mode> Y

AT+CNETLIGHT <mode> Y

AT+SLEDS <mode>,<timer_on>,<timer_off>

Y

AT+CSDT <mode> Y

AT+CSMINS <n> Y

AT+EXUNSOL <exunsol> Y

AT+IPR <n> Y

AT+IFC <TA_by_TE>, <TE_by_TA> Y

AT+ICF <format>,<parity> Y

AT+SD2PCM <mode> Y

AT+CMNRP <mode> Y

AT+ECHARGE <n> Y

AT+SIMTIMER <time> Y

AT+CSNS <mode> Y

AT+FSHEX <n> Y

2.2.33 AT+GCAP Request Complete TA Capabilities List

AT+GCAP Request Complete TA Capabilities List

Execution

Command

AT+GCAP

Response

TA reports a list of additional capabilities.

+GCAP: list of supported <name>s

OK

Parameters

<name> +CGSM GSM function is supported

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.34 AT+GMI Request Manufacturer Identification

AT+GMI Request Manufacturer Identification

Test Command

AT+GMI=?

Response

OK

Parameters

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Execution

Command

AT+GMI

TA reports one or more lines of information text which permit the user to

identify the manufacturer.

SIMCOM_Ltd

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.35 AT+GMM Request TA Model Identification

AT+GMM Request TA Model Identification

Test Command

AT+GMM=?

Response

OK

Execution

Command

AT+GMM

TA reports one or more lines of information text which permit the user to

identify the specific model of device.

<model>

OK

Parameters

<model> Product model identification text

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.36 AT+GMR Request TA Revision Identification of Software Release

AT+GMR Request TA Revision Identification of Software Release

Test Command

AT+GMR=?

Response

OK

Execution

Command

AT+GMR

TA reports one or more lines of information text which permit the user to

identify the revision of software release.

Revision: <revision>

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OK

Parameters

<revision> Revision of software release

Parameter Sa

ving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.37 AT+GOI Request Global Object Identification

AT+GOI Request Global Object Identification

Test Command

AT+GOI=?

Response

OK

Execution

Command

AT+GOI

Response

TA reports one or more

lines of information text which permit the user to

identify the device, based on the ISO system for registering unique object

identifiers.

OK

Parameters

<Object Id> Identifier of device type

see X.208, 209 for the format of <Object Id>

P

arameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

2.2.38 AT+GSN Request TA Serial Number Identification (IMEI)

AT+GSN Request TA Serial Number Identification(IMEI)

Test Command

AT+GSN=?

Response

OK

Execution

Command

AT+GSN

Response

TA reports the IMEI (international mobile equipment identifier) number in

information text which permit the user to identify the individual ME device.

<sn>

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OK

Parameters

<sn>

IMEI of the telephone(International Mobile station Equipment

Identity)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

The serial number (IMEI) is varied by individual ME device.

2.2.39 AT+ICF Set TE-TA Control Character Framing

AT+ICF Set TE-TA Control Character Framing

Test Command

AT+ICF=?

Response

+ICF: (list of supported <format>s),(list of supported <parity>s)

OK

Parameters

See Write Command

Read Command

AT+ICF?

Response

+ICF: <format>,<parity>

OK

Parameters

See Write Command

Write Command

AT+ICF=<forma

t>[,<parity>]

Response

T

his parameter setting determines the serial interface character framing

format and parity received by TA from TE.

OK

Parameters

<format> 1 8 data 0 parity 2 stop

2 8 data 1 parity 1 stop

3 8 data 0 parity 1 stop

4 7 data 0 parity 2 stop

5 7 data 1 parity 1 stop

6 7 data 0 parity 1 stop

<parity> 0 odd

1 even

3 space (0)

Parameter Saving

AT&W_SAVE

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Mode

Max Response

Time

-

Reference

V.25ter

Note

The Command is applied for Command state;

In <format> parameter, "0 parity" means no parity;

The <parity> field is ignored if the <format>

field specifies no parity and

string "+ICF: <format>,255" will be response to "AT+ICF? " Command.

2.2.40 AT+IFC Set TE-TA Local Data Flow Control

AT+IFC Set TE-TA Local Data Flow Control

Test Command

AT+IFC=?

Response

+IFC: (list of supported <dce_by_dte>s),(

list of supported

<dte_by_dce>s)

OK

Parameters

See Write Command

Read Command

AT+IFC?

Response

+IFC: <dce_by_dte>,<dte_by_dce>

OK

Parameters

See Write Command

Write Command

AT+IFC=<dce_b

y_dte>[,<dte_by

_dce>]

Response

This parameter setting determines the data flow control on the serial

interface for data mode.

OK

Parameters

<dce_by_dte> Specifies the method will be used by TE at

receive of

data from TA

0 No flow control

1 Software flow control

2 Hardware flow control

<dte_by_dce> S

pecifies the method will be used by TA at receive of data

from TE

0 No flow control

1 Software flow control

2 Hardware flow control

Parameter Saving

Mode

AT&W_SAVE

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Max Response

Time

-

Reference

V.25ter

Note

2.2.41 AT+IPR Set TE-TA Fixed Local Rate

AT+IPR Set TE-TA Fixed Local Rate

Test Command

AT+IPR=?

Response

+IPR: (list of supported auto detectable <rate>s),(

list of supported

fixed-only <rate>s)

OK

Parameters

See Write Command

Read Command

AT+IPR?

Response

+IPR: <rate>

OK

Parameters

See Write Command

Write Command

AT+IPR=<rate>

Response

This parameter setting determines the da

ta rate of the TA on the serial

interface. The rate of Command takes effect following the issuance of any

result code associated with the current Command line.

OK

Parameters

<rate> Baud rate per second

0 (Auto-bauding)

1200

2400

4800

9600

19200

38400

57600

115200

230400

460800

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

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Reference

V.25ter

Note

Factory setting is "AT+IPR=0"(auto-bauding).

2.2.41.1 Auto-bauding

Synchronization between DTE and DCE ensure that DTE and DCE are correctly synchronized and

the baud rate used by the DTE is detected by the DCE (= ME).To allow the baud rate to be

synchronized, simply issue an "AT" string. This is necessary when you start up the module while

auto-bauding is enabled. It is recommended to wait 3 to 5 seconds before sending the first AT

character. Otherwise undefined characters might be returned.

If you want to use auto-bauding and auto-answer at the same time, you can easily enable the

DTE-DCE synchronization, when you activate auto-bauding first and then configure the

auto-answer mode.

Restrictions on auto-bauding operation

The serial interface has to be operated at 8 data bits, no parity and 1 stop bit (factory setting).

Only the strings "AT" or "at" can be detected when auto-bauding is enabled.

AT+IPR=0 setting to auto-bauding will take effect after module resets.

Unsolicited Result Codes that may be issued before the ME detects the new baud rate (by

receiving the first AT Command string) will be sent at the previously detected baud rate.The

Unsolicited Result Codes "RDY" and so on are not indicated when you start up the ME while

auto-bauding is enabled.

It is not recommended to switch to auto-bauding from a baud rate that cannot be detected by the

auto-bauding mechanism (e.g. 300 baud). Responses to +IPR=0 and any commands on the same

line might be corrupted.

Auto-bauding and baud rate after restart

The most recently detected baud rate can not be stored when module is powered down.

2.2.42 AT+HVOIC Disconnect Voice Call Only

AT+HVOIC Disconnect Voice Call Only

Execution

Command

AT+HVOIC

Response

Disconnect existing voice call by local TE from Command line and

terminate call with existing PPP or CSD connection on.

OK

Pa

rameter Saving

Mode

NO_SAVE

Max Response

Time

20s

Reference

V.25ter

Note

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3 AT Commands According to 3GPP TS 27.007

3.1 Overview of AT Command According to 3GPP TS 27.007

Command Description

AT+CACM Accumulated call meter(ACM) reset or query

AT+CAMM Accumulated call meter maximum(ACM max) set or query

AT+CAOC Advice of charge

AT+CBST Select bearer service type

AT+CCFC Call forwarding number and conditions control

AT+CCWA Call waiting control

AT+CEER Extended error report

AT+CGMI Request manufacturer identification

AT+CGMM Request model identification

AT+CGMR Request TA revision identification of software release

AT+CGSN Request product serial number identification (identical with +GSN)

AT+CSCS Select TE character set

AT+CSTA Select type of address

AT+CHLD Call hold and multiparty

AT+CIMI Request international mobile subscriber identity

AT+CLCC List current calls of ME

AT+CLCK Facility lock

AT+CLIP Calling line identification presentation

AT+CLIR Calling line identification restriction

AT+CMEE Report mobile equipment error

AT+COLP Connected line identification presentation

AT+COPS Operator selection

AT+CPAS Phone activity status

AT+CPBF Find phonebook entries

AT+CPBR Read current phonebook entries

AT+CPBS Select phonebook memory storage

AT+CPBW Write phonebook entry

AT+CPIN Enter PIN

AT+CPWD Change password

AT+CR Service reporting control

AT+CRC Set cellular result codes for incoming call indication

AT+CREG Network registration

AT+CRLP Select radio link protocol parameters

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AT+CRSM Restricted SIM access

AT+CSQ Signal quality report

AT+VTD Tone duration

AT+VTS DTMF and tone generation

AT+CMUX Multiplexer control

AT+CNUM Subscriber number

AT+CPOL Preferred operator list

AT+COPN Read operator names

AT+CFUN Set phone functionality

AT+CCLK Clock

AT+CSIM Generic SIM access

AT+CALM Alert sound mode

AT+CALS Alert sound select

AT+CRSL Ringer sound level

AT+CLVL Loud speaker volume level

AT+CMUT Mute control

AT+CPUC Price per unit and currency table

AT+CCWE Call meter maximum event

AT+CBC Battery charge

AT+CUSD Unstructured supplementary service data

AT+CSSN Supplementary services notification

3.2 Detailed Descriptions of AT Command According to 3GPP TS 27.007

3.2.1 AT+CACM Accumulated Call Meter (ACM) Reset or Query

AT+CACM Accumulated Call Meter(ACM) Reset or Query

Test Command

AT+CACM=?

Response

OK

Read Command

AT+CACM?

Response

TA returns the current value of ACM.

+CACM: <acm>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<acm> String type (string should be included in quotation marks);

three bytes of the current ACM value in hexa-decimal format (e.g.

"00001E" indicates decimal value 30)

000000 – FFFFFF

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Write Command

AT+CACM=<pa

sswd>

Response

TA resets the Advice of Charge related accumulated call meter (ACM)

value in SIM file EF (ACM). ACM contains the total number of home

units for both the current and preceding calls.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<passwd> String type (string should be included in quotation marks):

SIM PIN2

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.2 AT+CAMM Accumulated Call Meter Maximum (ACM max) Set or Query

AT+CAMM Accumulated Call Meter Maximum(ACM max) Set or Query

Test Command

AT+CAMM=?

Response

OK

Read Command

AT+CAMM?

Response

TA returns the current value of ACM max.

+CAMM: <acmmax>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CAMM=<ac

mmax>[,<passwd

>]

Response

TA sets the Advice of Charge related accumulated call meter maximum

value in SIM file EF (ACM max). ACM max contains the maximum

number of home units allowed to be consumed by the subscriber.

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<acmmax> String type (string should be included in quotation

marks); three bytes of the max. ACM value in hex-decimal format (e.g.

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"00001E" indicates decimal value 30)

000000 disable ACMmax feature

000001-FFFFFF

<passwd> String type (string should be included in quotation marks)

SIM PIN2

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.3 AT+CAOC Advice of Charge

AT+CAOC Advice of Charge

Test Command

AT+CAOC=?

Response

+CAOC: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CAOC?

Response

+CAOC: <mode>

OK

Parameters

See Write Command

Write Command

AT+CAOC=<mo

de>

Response

TA sets the Advice of Charge supplementary service function mode.

If <mode>=0, TA returns the current call meter value

+CAOC: <ccm>

OK

If <mode>=1, TA deactivates the unsolicited reporting of CCM value

OK

If <mode>=2, TA activates the unsolicited reporting of CCM value

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 0 Query CCM value

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1 Deactivate the unsolicited reporting of CCM value

2 Activate the unsolicited reporting of CCM value

<ccm> String type (string should be included in quotation marks);

three bytes of the current CCM value in hex-decimal format (e.g.

"00001E" indicates decimal value 30); bytes are similarly coded as

ACMmax value in the SIM 000000-FFFFFF

Execution

Command

AT+CAOC

Response

+CAOC: <ccm>

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.4 AT+CBST Select Bearer Service Type

AT+CBST Select Bearer Service Type

Test Command

AT+CBST=?

Response

+CBST: (list of supported <speed>s),(list of supported <name>s),(list of

supported <ce>s)

OK

Parameters

See Write Command

Read Command

AT+CBST?

Response

+CBST: <speed>,<name>,<ce>

OK

Parameters

See Write Command

Write Command

AT+CBST=<spee

d>[,<name>[,<ce

>]]

Response

TA selects the bearer service <name> with data rate <speed>, and the

connection element <ce> to be used when data calls are originated.

OK

ERROR

Parameters

<speed> 0 Auto-bauding (automatic selection of the speed; this

setting is possible in case of 3.1kHz modern and non-transparent service)

4 2400 bps (V.22bis)

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5 2400 bps (V.26ter)

6 4800 bps (V.32)

7 9600 bps (V.32)

12 9600 bps (V.34)

14 14400 bps (V.34)

68 2400 bps (V.110 or X.31 flag stuffing)

70 4800 bps (V.110 or X.31 flag stuffing)

71 9600 bps (V.110 or X.31 flag stuffing)

75 14400 bps (V.110 or X.31 flag stuffing)

<name> 0 Data circuit asynchronous (UDI or 3.1 kHz modem)

4 Data circuit asynchronous (RDI)

<ce> 0 Transparent

1 Non-transparent

2 Both, transparent prefered

3 Both, non-transparent prefered

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[14]

Note

GSM 02.02[1]: lists the allowed combinations of the sub parameters.

3.2.5 AT+CCFC Call Forwarding Number and Conditions Control

AT+CCFC Call Forwarding Number and Conditions Control

Test Command

AT+CCFC=?

Response

+CCFC: (list of supported <reason>s)

OK

Parameters

See Write Command

Write Command

AT+CCFC=<rea

son>,<mode>[,<

number>[,<type

>[,<class>[,<sub

addr>[,<satype>[

,time]]]]]]

Response

TA controls the call forwarding supplementary service. Registration,

erasure, activation, deactivation, and status query are supported.

Only ,<reads> and <mode> should be entered with mode (0-2,4)

If <mode>≠2 and Command successful

OK

If <mode>=2 and Command successful (only in connection with <reason>

0 –3)

For registered call forwarding numbers:

when <mode>=2 and command successful:

+CCFC:

<status>,<class1>[,<number>,<type>[,<subaddr>,<satype>[,<time>]]]

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[<CR><LF>+CCFC:

<status>,<class2>[,<number>,<type>[,<subaddr>,<satype>[,<time>]]][

…]

OK

If no call forwarding numbers are registered (and therefore all classes are

inactive):

+CCFC: <status>, <class>

OK

where <status>=0 and <class>=7

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<reason> 0 Unconditional

1 Mobile busy

2 No reply

3 Not reachable

4 All call forwarding

5 All conditional call forwarding

<mode> 0 Disable

1 Enable

2 Query status

3 Registration

4 Erasure

<number> String type (Phone number of forwarding address in format

specified by <type>)

<type> Type of address

<subaddr> String type (subaddress of format specified by <satype>)

<satype> Type of sub-address in integer

<class> 1 Voice (telephony)

2 Data (refers to all bearer services; with <mode

>=2 this

may

refer only to some bearer service if TA does not support

values 16, 32, 64 and 128)

4 Fax (facsimile services)

7 All classes

<time> 1..30 When "no reply" is enabled or queried

, this gives the time

in seconds to wait before call is forwarded, default value is 20.

Supported

only if it is multiples of 5.

0 Not active

1 Active

Parameter Saving

Mode

NO_SAVE

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Max Response

Time

15s

Reference

3GPP TS 27.007

Note

3.2.6 AT+CCWA Call Waiting Control

AT+CCWA Call Waiting Control

Test Command

AT+CCWA=?

Response

+CCWA: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CCWA?

Response

+CCWA: <n>

OK

Parameters

See Write Command

Write Command

AT+CCWA=<n>[,

<mode>[,<class>]]

Response

TA controls the Call Waiting supplementary service. Activation,

deactivation and status query are supported.

If <mode>≠2 and Command successful

OK

If <mode>=2 and Command successful

+CCWA:

<status>,<class1>[<CR><LF>+CCWA:<status>,<class2>[...]]

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Note: <status

>=0 should be returned only if service is not active for any

<class> i.e. +CCWA: 0, 7 will be returned in this case.

When mode=2, all active c

all waiting classes will be reported. In this mode

the Command is aborted by pressing any key.

Parameters

<n> 0 Disable presentation of an unsolicited result code

1 Enable presentation of an unsolicited result code

<mode> When <mode> parameter not given, network is not

interrogated

0 Disable

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1 Enable

2 Query status

<class> Is a sum of integers each representing a class of information

1 Voice (telephony)

2 Data (refers to all bearer services; with <mode>=2 this

may refer only to some bearer service if TA does not support values 16,

32, 64 and 128

4 Fax (facsimile services)

7 Default(1+2+4)

<status> 0 Not active

1 Active

Unsolicited result code

RING

+CCWA: <number>,<type>,<class>[,<alpha>]

Parameters

<number> String type (string should be included in quotation marks)

phone number of calling address in format specified by <type>

<type> Type of address octet in integer format;

129 Unknown type

161 National number type

145 International number type

177 Network specific number

<alpha> Optional string type (string should be included in quotation

marks) alphanumeric representation of <number> corresponding to the

entry found in phone book.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

15s

Reference

3GPP TS 27.007

Note

3.2.7AT+CEER Extended Error Report

AT+CEER Extended Error Report

Test Command

AT+CEER=?

Response

+CEER: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command Response

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AT+CEER? +CEER: <n>

OK

Parameters

See Write Command

Write Command

AT+CEER=<n>

Response

OK

Parameter

<n> 0 The reason for last call release as text code

1 The reason for last call release as number code

Execution

Command

AT+CEER

Response

TA returns an extended report of the reason for the last call release.

+CEER: <report>

OK

Parameters

<report> If AT+CEER=0, return <s>

<s> a string that represents the Cause

If AT+CEER=1, return

Cause:<c>

<c> number representing the Cause

Parameters

<c>(number) <s>(string)

0 (No cause)

1 (unassigned (unallocated) number)

3 (no route to destination)

6 (channel unacceptable)

8 (operator determined barring)

16 (normal call clearing)

17 (user busy)

18 (no user responding)

19 (user alerting, no answer)

21 (call rejected)

22 (number changed)

26 (non-selected user clearing)

27 (destination out of order)

28 (invalid number format (incomplete number))

29 (facility rejected)

30

(

response to STATUS ENQUIRY

)

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31 (normal, unspecified)

34 (emergency call not possible)

38 (network out of order)

41 (temporary failure)

42 (switching equipment congestion)

43 (access information discarded)

44 (requested circuit/channel not available)

47 (resource unavailable, unspecified)

49 (quality of service unavailable)

50 (Requested facility not subscribed)

55 (Incoming calls barred within the CUG)

57 (bearer capability not authorized)

58 (bearer capability not presently available)

63 (service or option not available, unspecified)

68 (ACM equal to or greater than ACMmax)

65 (bearer service not implemented)

69 (Requested facility not implemented)

70 (only restricted digital information bearer capability is

available)

79 (service or option not implemented,unspecified)

81 (invalid transaction identifier value)

87 (user not member of CUG)

88 (incompatible destination)

91 (invalid transit network selection)

95 (semantically incorrect message)

96 (invalid mandatory information)

97 (message type non-existent or not implemented)

98 (message type not compatible with protocol state)

99 (information element non-existent or not implemented)

100 (conditional IE error)

101 (message not compatible with protocol state)

102 (recovery on timer expiry)

111 (protocol error, unspecified)

127 (interworking, unspecified)

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Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.8 AT+CGMI Request Manufacturer Identification

AT+CGMI Request Manufacturer Identification

Test Command

AT+CGMI=?

Response

OK

Execution

Command

AT+CGMI

Response

TA returns manufacturer identification text.

OK

Parameters

<manufacturer> The ID of manufacturer

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.9 AT+CGMM Request Model Identification

AT+CGMM Request Model Identification

Test Command

AT+CGMM=?

Response

OK

Execution

Command

AT+CGMM

Response

TA returns product model identification text.

<model>

OK

Parameters

<model> Product model identification text

Parameter Saving

Mode

NO_SAVE

Max Response -

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Time

Reference

3GPP TS 27.007

[13]

Note

3.2.10 AT+CGMR Request TA Revision Identification of Software Release

AT+CGMR Request TA Revision Identification of Software Release

Test Command

AT+CGMR=?

Response

OK

Execution

Command

AT+CGMR

Response

TA returns product software version identification text.

Revision: <revision>

OK

Parameters

<revision> Product software version identification text

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.11 AT+CGSN Request Product Serial Number Identification (Identical with +GSN)

AT+CGSN Request Product Serial Number Identification (Identical with +GSN)

Test Command

AT+CGSN=?

Response

OK

Execution

Command

AT+CGSN

Response

see +GSN

<sn>

OK

Parameters

<sn> International mobile equipment identity (IMEI)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

Note

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[13]

3.2.12 AT+CSCS Select TE Character Set

AT+CSCS Select TE Character Set

Test Command

AT+CSCS=?

Response

+CSCS: (list of supported <chset>s)

OK

Parameters

<chset> "GSM" GSM 7 bit default alphabet (3GPP TS 23.038);

"UCS2" 16-bit universal multiple-octet coded character set

(ISO/IEC10646); UCS2 character strings are converted to

hexadecimal numbers from 0000 to FFFF; e.g.

"004100620063" equals three 16-bit characters with decimal

values 65, 98 and 99

"IRA" International reference alphabet (ITU-T T.50)

"HEX" Character strings consist only of hexadecimal

numbers from 00 to FF;

"PCCP" PC character set Code

"PCDN" PC Danish/Norwegian character set

"8859-1" ISO 8859 Latin 1 character set

Read Command

AT+CSCS?

Response

+CSCS: <chset>

OK

Parameters

See Test Command

Write Command

AT+CSCS=<chse

t>

Response

Sets which character set <chset> are used by the TE. The TA can then

convert character strings correctly between the TE and ME character sets.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Test Command

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

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3.2.13 AT+CSTA Select Type of Address

AT+CSTA Select Type of Address

Test Command

AT+CSTA=?

Response

+CSTA: (list of supported <type>s)

OK

Parameters

See Write Command

Read Command

AT+CSTA?

Response

+CSTA: <type>

OK

Parameter

<type> Current address type setting.

Write Command

AT+CSTA=<type

>

Response

OK

If <type> is not in the parameter range:

ERROR

Parameters

<type> Type of address octet in integer format;

129 Unknown type

161 National number type

145 International number type

177 Network specific number

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

The ATD Command overrides this setting when a number is dialed.

3.2.14 AT+CHLD Call Hold and Multiparty

AT+CHLD Call Hold and Multiparty

Test Command

AT+CHLD=?

Response

+CHLD: (list of supported <n>s)

OK

Parameters

See Write Command

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Write Command

AT+CHLD=<n>

Response

TA controls the supplementary services Call Hold, Multiparty and Explicit

Call Transfer. Calls can be put on hold, recovered, released, added to

conversation, and transferred.

Note These supplementary services are only applicable to tele service 11

(Speech: Telephony).

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> 0 Releases all held calls or sets User Determined User Busy

(UDUB) for a waiting call

1 Releases all active calls (if any exist) and accepts the other

(held or waiting) call.

1x Releases a specific call x

2 Place all active calls on hold (if any) and accept the other

(held or waiting) call.

2x Places all active calls on hold except call X with which

communication shall be supported.

3 Adds a held call to the conversation.

4 Connects the two calls and disconnects the subscriber from

both calls(ECT)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

20s

Reference Note

3.2.15 AT+CIMI Request International Mobile Subscriber Identity

AT+CIMI Request International Mobile Subscriber Identity

Test Command

AT+CIMI=?

Response

OK

Execution

Command

AT+CIMI

Response

TA returns <IMSI>for identifying the individual SIM which is attached to

ME.

<IMSI>

OK

If error is related to ME functionality:

+CME ERROR: <err>

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Parameters

<IMSI> International Mobile Subscriber Identity (string without

double quotes)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

20s

Reference

3GPP TS 27.007

[13]

Note

3.2.16 AT+CLCC List Current Calls of ME

AT+CLCC List Current Calls of ME

Test Command

AT+CLCC=?

Response

+CLCC: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CLCC?

Response

+CLCC: <n>

OK

Parameters

See Write Command

Write Command

AT+CLCC=<n>

Response

OK

Parameters

<n> 0 Don’t report a list of current calls of ME automatically

when the current call status changes.

1 Report a list of current calls of ME automatically when the

current call status changes.

Execution

Command

AT+CLCC

Response

TA returns a list of current calls of ME.

Note: If Command succeeds but no calls are available, no information

response is sent to TE.

[+CLCC: <id1>,<dir>,<stat>,<mode>,<mpty>[,<number>,<type

>,<alphaID>]

[<CR><LF>+CLCC: <id2>,<dir>,<stat>,<mode>,<mpty>

[,<number>,<type>,<alphaID>][...]]]

OK

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If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<idx> 1..7 Call identification number

This number can be used in +CHLD command operations

<dir> 0 Mobile originated (MO) call

1 Mobile terminated (MT) call

<stat> State of the call:

0 Active

1 Held

2 Dialing (MO call)

3 Alerting (MO call)

4 Incoming (MT call)

5 Waiting (MT call)

6 Disconnect

<mode> Bearer/tele service:

0 Voice

1 Data

2 Fax

<mpty> 0 Call is not one of multiparty (conference) call parties

1 Call is one of multiparty (conference) call parties

<number> String type (string should be included in quotation marks)

phone number in format specified by <type>.

<type> Type of address

<alphaId> String type (string should be included in quotation marks)

alphanumeric representation of <number> corresponding to the entry

found in phone book.

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13][14]

Note

3.2.17 AT+CLCK Facility Lock

AT+CLCK Facility Lock

Test Command

AT+CLCK=?

Response

+CLCK: (list of supported <fac>s)

OK

Parameters

See Write Command

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Write Command

AT+CLCK=<fac>

,<mode>[,<passw

d>[,<class>]]

Response

This Command is used to lock, unlock or interrogate a ME or a network

facility <fac

>. Password is normally needed to do such actions. When

querying the status of a network service (<mode

>=2) the response line for

‘not active’ case (<status>=0) should be r

eturned only if service is not

active for any <class>.

If <mode>≠2 and Command is successful

OK

If <mode>=2 and Command is successful

+CLCK: <status>[,<class1>[<CR><LF>+CLCK:

<status>,<class2>[…]]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<fac>

"AO" BAOC (Barr All Outgoing Calls)

"OI" BOIC (Barr Outgoing International Calls)

"OX" BOIC-exHC (Barr Outgoing International Calls

except to Home Country)

"AI" BAIC (Barr All Incoming Calls)

"IR" BIC-Roam (Barr Incoming Calls when Roaming

outside the home country)

"FD" SIM card or active application in the UICC (GSM or

USIM) fixed dialling memory feature (if PIN2 authentication has not been

done during the current session, PIN2 is required as <passwd>)

"SC" SIM (lock SIM/UICC card) (SIM/UICC asks

password in MT power-up and when this lock command issued)

Correspond to PIN1 code.

"PN" Network Personalization, Correspond to NCK code

"PU" Network subset Personalization

Correspond to NSCK code

"PP" Service Provider Personalization

Correspond to SPCK code

<mode> 0 unlock

1 lock

2 query status

<passwd> String type (Shall be the same as password specified for the

facility from the MT user interface or with command Change Password

+CPWD)

<class> 1 Voice (telephony)

2 Data refers to all bearer services; with <mode>=2 this

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may refer only to some bearer service if TA does not support values 16,

32, 64 and 128)

4 Fax (facsimile services)

7 All classes

<status> 0 Not active

1 Active

Parameter Saving

Mode

NO_SAVE

Max Response

Time

15s

Reference

3GPP TS 27.007

[14]

Note

l CME errors if SIM not inserted or PIN is not entered.

l Part of the projects supported by this AT command,

please refer to

chapter 21 for details.

3.2.18 AT+CLIP Calling Line Identification Presentation

AT+CLIP Calling Line Identification Presentation

Test Command

AT+CLIP=?

Response

+CLIP: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CLIP?

Response

+CLIP: <n>, <m>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CLIP=<n>

Response

TA enables or disables the presentation of the CLI at the TE. It has no

effect on the execution of the supplementary service CLIP in the network.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> 0 Disable +CLIP notification.

1 Enable +CLIP notification.

<m> 0 CLIP not provisioned

1 CLIP provisioned

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2 Unknown (e.g. no network, etc.)

Unsolicited Result Code

When the presentation of the CLI at the TE is enabled (and calling

subscriber allows), an unsolicited result code is returned after every RING

(or +CRING: <type>) at a mobile terminating call.

+CLIP: <number>,<type>[,<subaddr>,<satype>,<alphaId>,<CLI

validity>]

Parameters

<number> String type (string should be included in quotation marks)

phone number of calling address in format specified by <type>.

<type> Type of address octet in integer format;

129 Unknown type

161 National number type

145 International number type

177 Network specific number

<subaddr> String type (subaddress of format specified by <satype>)

<satype> Integer type (type of subaddress)

<alphaId> String type (string should be included in quotation marks)

alphanumeric representation of <number> corresponding to the entry

found in phone book.

0 CLI valid

1 CLI has been withheld by the originator.

2 CLI is not available due to interworking problems or

limitations of originating network.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

15s

Reference Note

3.2.19 AT+CLIR Calling Line Identification Restriction

AT+CLIR Calling Line Identification Restriction

Test Command

AT+CLIR=?

Response

+CLIR: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CLIR?

Response

+CLIR: <n>, <m>

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OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CLIR=<n>

Response

TA restricts or enables the presentation of the

CLI to the called party when

originating a call.

The Command overrides the CLIR subscription (default is restricted or

allowed) when temporary mode is provisioned as a default adjustment for

all following outgoing calls. This adjustment can be revoked by

using the

opposite Command.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> (parameter sets the adjustment for outgoing calls):

0 Presentation indicator is used according to the subscription of

the CLIR service.

1 CLIR invocation

2 CLIR suppression

<m> (parameter shows the subscriber CLIR service status in the

network):

0 CLIR not provisioned

1 CLIR provisioned in permanent mode

2 Unknown (e.g. no network, etc.)

3 CLIR temporary mode presentation restricted

4 CLIR temporary mode presentation allowed

Parameter Saving

Mode

NO_SAVE

Max Response

Time

15s

Reference Note

3.2.20 AT+CMEE Report Mobile Equipment Error

AT+CMEE Report Mobile Equipment Error

Test Command

AT+CMEE=?

Response

+CMEE: (list of supported <n>s)

OK

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Parameters

See Write Command

Read Command

AT+CMEE?

Response

+CMEE: <n>

OK

Parameters

See Write Command

Write Command

AT+CMEE=[<n>

]

Response

TA disables or enables the use of result code +CME ERROR: <err> as

an indication of an error relating to the functionality of the ME.

OK

If error is related to ME functionality:

+CME ERROR:<err>

Parameters

<n> 0 Disable +CME ERROR: <err> result code and use

ERROR instead.

1 Enable +CME ERROR: <err> result code and use numeric

<err>

2 Enable +CME ERROR: <err> result code and use

verbose <err> values

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.21 AT+COLP Connected Line Identification Presentation

AT+COLP Connected Line Identification Presentation

Test Command

AT+COLP=?

Response

+COLP: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+COLP?

Response

+COLP: <n>,<m>

OK

If error is related to ME functionality:

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+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+COLP=<n>

Response

TA enables or disables the presentation of the COL (Connected Line) at the

TE for a mobile originated call. It has no effect on the execution of the

supplementary service COLR in the network.

Intermediate result code is returned from TA to TE before any +CR or

V.25ter responses.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> (parameter sets/shows the result code presentation status in the

TA):

0 Disable +COLP notification

1 Enable +COLP notification

<m> (parameter shows the subscriber COLP service status in the

network):

0 COLP not provisioned

1 COLP provisioned

2 Unknown (e.g. no network, etc.)

Intermediate result code

When enabled (and called subscriber allows), an

intermediate result code is

returned before any +CR or V.25ter responses:

+COLP: <number>,<type>[,<subaddr>,<satype> ,<alphaId>]

Parameters

<number> String type (string should be included in quotation marks)

phone number of format specified by <type>

<type> Type of address octet in integer format;

129 Unknown type

161 National number type

145 International number type

177 Network specific number

<subaddr> String type (string should be included in quotation marks)

sub address of format specified by <satype>

<satype> Type of sub address octet in integer format (refer GSM

04.08 [8] sub clause 10.5.4.8)

<alphaId> String type (string should be included in quotation marks)

alphanumeric representation of <number> corresponding to the entry

found in phone book.

Parameter Saving

Mode

NO_SAVE

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Max Response

Time

-

Reference Note

3.2.22 AT+COPS Operator Selection

AT+COPS Operator Selection

Test Command

AT+COPS=?

Response

TA returns a list of quadruplets, each representing an operator present in

the network. Any of the formats may be unavailable and should then be an

empty field. The list of operators shall be in order: home network,

networks referenced in SIM, and other networks.

+COPS: (list of supported<stat>,long alphanumeric<oper>,short

alphanumeric<oper>,numeric <oper>)s[,,(list of supported <mode>s),

(list of supported <format>s)]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+COPS?

Response

TA returns the current mode and the currently selected operator. If no

operator is selected, <format> and <oper> are omitted.

+COPS: <mode>[,<format>, <oper>]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+COPS=<mo

de>,[<format>[,<

oper>]]

Response

TA forces an attempt to select and register the GSM network operator. If

the selected operator is not available, no other operator shall be selected

(except <mode>=4). The selected operator name format shall apply to

further read commands (AT+COPS?).

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<stat> 0 Unknown

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1 Operator available

2 Operator current

3 Operator forbidden

<oper> Refer to [27.007]

operator in format as per <format>

<mode> 0 Automatic mode; <oper> field is ignored

1 Manual (<oper> field shall be present, and <AcT>

optionally)

2 manual deregister from network

3 set only <format> (for read Command +COPS?) - not

shown in Read Command response

4 Manual/automatic (<oper> field shall be present); if

manual selection fails, automatic mode (<mode>=0) is

entered

<format> 0 Long format alphanumeric <oper>

1 Short format alphanumeric <oper>

2 Numeric <oper>; GSM Location Area Identification

number

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

Test command: 45 seconds

Write command: 120 seconds

Reference

3GPP TS 27.007

[14]

Note

3.2.23 AT+CPAS Phone Activity Status

AT+CPAS Phone Activity Status

Test Command

AT+CPAS=?

Response

+CPAS: (list of supported <pas>s)

OK

Parameters

See Execution Command

Execution

Command

AT+CPAS

Response

TA returns the activity status of ME.

+CPAS: <pas>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<pas> 0 Ready (MT allows commands from TA/TE)

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2 Unknown (MT is not guaranteed to respond to

instructions)

3 Ringing (MT is ready for commands from TA/TE, but the

ringer is active)

4 Call in progress (MT is ready for commands from TA/TE,

but a call is in progress)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.24 AT+CPBF Find Phonebook Entries

AT+CPBF Find Phonebook Entries

Test Command

AT+CPBF=?

Response

+CPBF: maximum length of field <nlength>,maximum length of field

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CPBF=[<find

text>]

Response

TA returns phone book

entries(from the current phone book memory

storage selected with +CPBS) which contains alp

hanumeric string

<findtext>.

[+CPBF:<index1>,<number>,<type>,<text>]

[[…]<CR><LF>+CBPF:<index2>,<number>,<type>,<text>]

OK

Parameters

<findtext> S

tring type(string should be included in quotation marks)

field of maximum length <tlength> in current TE c

haracter set specified

by +CSCS.

<index1> I

nteger type values in the range of location numbers of

phone book memory

<index2> I

nteger type values in the range of location numbers of phone

book memory

<number> String type (string should be included in quo

tation marks)

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phone number of format <type>

<type> Type of address octet in integer format ;

129 Unknown type

145 International number type

<text> String type

(string should be included in quotation marks) field

of maximum length <tlength> in current TE

character set specified by

+CSCS.

<nlength> I

nteger type value indicating the maximum length of field

<tlength> I

nteger type value indicating the maximum length of field

<text>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

30 seconds (complete reading of a 250 records full phonebook)

3 seconds(string present in a 250 records full phonebook)

1 second(string not present)

We use the China Mobile sim cards for testing, which produced by Axalto

at 2010 for Shanghai. Use other sim cards may have different results.

Reference

3GPP TS 27.007

[13]

Note

3.2.25 AT+CPBR Read Current Phonebook Entries

AT+CPBR Read Current Phonebook Entries

Test Command

AT+CPBR=?

Response

TA returns location range supported by the current storage as a compound

value and the maximum lengths of <number> and <text> fields.

+CPBR: (list of supported <index>s), <nlength>, <tlength>

OK

Parameters

<index> Location number

<nlength> Max. length of phone number

<tlength> Max. length of text for number

Write Command

AT+CPBR=<inde

x1>[,<index2>]

Response

TA returns phone book entries in location number range <index1

>...

<index2

> from the current phone book memory storage selected with

+CPBS. If <index2> is left out, only location <index1> is returned.

+CPBR:<index1>,<number>,<type>,<text>

[[…]<CR><LF>+CPBR: <index2>, <number>, <type>, <text>]

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OK

Parameters

<index1> Read as of this location number

<index2> Read to this location number

<number> Phone number

<type> Type of number

<text> Text for phone number in current TE c

haracter set specified by

+CSCS.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

3 seconds (single reading)

30 seconds (complete reading of a 250 records full phonebook.

We use the China Mobile sim cards for testing, which produced by Axalto

at 2010 for Shanghai. Use other sim cards may have different results.

Reference

3GPP TS 27.007

[13]

Note

3.2.26 AT+CPBS Select Phonebook Memory Storage

AT+CPBS Select Phonebook Memory Storage

Test Command

AT+CPBS=?

Response

+CPBS: (list of supported <storage>s)

OK

Parameters

See Write Command

Read Command

AT+CPBS?

Response

+CPBS: <storage>,<used>,<total>

OK

Parameters

See Write Command

Write Command

AT+CPBS=<stora

ge>

Response

TA selects current phone book memory storage, which is used by other

phone book commands.

OK

Parameters

"ON" SIM (or MT) own numbers (MSISDNs) list

(reading of this storage may be available through +CNUM

also). When storing information in the SIM/UICC, if a SIM

card is present or if a UICC with an active GSM applica

tion

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is present, the information in EFMSISDN under

DFTelecom is selected.

"SM"

SIM/UICC phonebook. If a SIM card is present or

if a UICC with an active GSM application is present, the

EFADN under DFTelecom is selected.

"ME" ME phonebook

"FD" SIM fix dialing-

phone book. If a SIM card is

present or if a UICC with an active GSM application is

present, the information in EFFDN under DFTelecom is

selected

<used> Integer type value indicating the total number of used

locations in selected memory

<total> Integer type value indicating the total number of locations

in selected memory

Parameter Saving

Mode

NO_SAVE

Max Response

Time

3 seconds

Reference

3GPP TS 27.007

[13]

Note

3.2.27 AT+CPBW Write Phonebook Entry

AT+CPBW Write Phonebook Entry

Test Command

AT+CPBW=?

Response

TA returns location range supported by the current storage, the maximum

length of <number

> field, supported number formats of the storage, and

the maximum length of <text> field.

+CPBW: (list of supported <index>s), <nlength>, (

list of supported

OK

Parameters

See Write Command

Write Command

AT+CPBW=<inde

x>[,<number>,[<t

ype>,[<text>]]]

Response

TA writes phone book entry in location number <index

> in the current

phone book memory storage selected with +CPBS

. Entry fields written are

phone number <number> (in the format <type>) and text <text

>

associated with the number. If those fields are omitted, phone book entry is

deleted. If <index> is left out, but <number> is given,

entry is written to

the first free location in the phone book.

OK

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Parameters

<nlength> Max length of phone number

<tlength> Max length of text for number

<index> Location number

<number> Phone number

<type> Type of number;

129 National number type

145 International number type

<text> String type

(string should be included in quotation marks): text

for phone number in current TE character set specified by +CSCS.

Note: The following characters in <text

> must be entered via the

escape sequence:

GSM char. Seq. Seq.(hex) Note

\ \5C 5C 35 43 (backslash)

" \22 5C 32 32 (string delimiter)

BSP \08 5C 30 38 (backspace)

NULL \00 5C 30 30 (GSM null)

‘0’ (GSM null) may cause problems for application layer

software

when reading string lengths.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

3 seconds

Reference

3GPP TS 27.007

[13]

Note

3.2.28 AT+CPIN Enter PIN

AT+CPIN Enter PIN

Test Command

AT+CPIN=?

Response

OK

Read Command

AT+CPIN?

Response

TA retu

rns an alphanumeric string indicating whether some password is

required or not.

+CPIN: <code>

OK

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Parameters

<code>

READY MT is not pending for any password

SIM PIN MT is waiting SIM PIN to be given

SIM PUK MT is waiting for SIM PUK to be given

PH_SIM PIN ME is waiting for phone to SIM card (antitheft)

PH_SIM PUK ME is waiting for SIM PUK (antitheft)

SIM PIN2

PIN2, e.g. for editing the FDN book possible only

if preceding Command was acknowledged with +CME

ERROR:17

SIM PUK2 Possible

only if preceding Command was

acknowledged with error +CME ERROR: 18.

Write Command

AT+CPIN=<pin>[

,<new pin>]

Response

TA stores a password which is necessary before it can be operated (SIM

PIN, SIM PUK, PH-SIM PIN, etc.).

If the PIN required is SIM PUK or SIM PUK2, the second pin is required.

This second pin, <new pin>, is used to replace the old pin in the SIM.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<pin> String type; password

<new pin> String type; If the

PIN required is SIM PUK or SIMPUK2:

new password

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.007

[13]

Note

3.2.29 AT+CPWD Change Password

AT+CPWD Change Password

Test Command

AT+CPWD=?

Response

TA returns a list of pair

s which present the available facilities and the

maximum length of their password.

+CPWD: (list of supported <fac>s, list of supported <pwdlength>s)

OK

Parameters

<fac> See Write Command

<pwdlength> Integer max. length of password

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Write Command

AT+CPWD=<fac

>,<oldpwd>,<new

pwd>

Response

TA sets a new password for the facility lock function.

OK

Parameters

<fac>

"AO" BAOC (Barr All Outgoing Calls)

"OI" BOIC (Barr Outgoing International Calls)

"OX" BOIC-exHC (Barr Outgoing International Calls

except to Home Country)

"AI" BAIC (Barr All Incoming Calls)

"IR" BIC-Roam (Barr Incoming Calls when Roaming

outside the home country)

"AB" All Barring services

"P2" SIM PIN2

"SC" SIM (lock SIM/UICC card) (SIM/UICC asks password

in MT power-up and when this lock command issued) Correspond to PIN1

code.

<oldpwd> String type (string should be included in quotation marks):

password specified for the facility from the user interface or with

command. If an old password has not yet been set, <oldpwd> is not to

enter.

<newpwd> String type (string should be included in quotation marks):

new password

Parameter Saving

Mode

NO_SAVE

Max Response

Time

15s

Reference

3GPP TS 27.007

[13]

Note

3.2.30 AT+CR Service Reporting Control

AT+CR Service Reporting Control

Test Command

AT+CR=?

Response

+CR: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CR?

Response

+CR: <mode>

OK

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Parameters

See Write Command

Write Command

AT+CR=[<mode

>]

Response

TA controls whether or not intermediate result code +CR: <serv> is

returned from the TA to the TE at a call set up.

OK

Parameters

<mode> 0 Disable

1 Enable

Intermediate result code

If enabled, an intermediate result code is transmitted at the point during

connect negotiation at which the TA has determined which speed and

quality of service will be used, before any error control or data

compression reports are transmitted, and before any final result code (e.g.

CONNECT) is transmitted.

+CR:<serv>

Parameters

<serv> ASYNC Asynchronous transparent

SYNC Synchronous transparent

REL ASYNC Asynchronous non-transparent

REL SYNC Synchronous non-transparent

GPRS For GPRS

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.31 AT+CRC Set Cellular Result Codes for Incoming Call Indication

AT+CRC Set Cellular Result Codes for Incoming Call Indication

Test Command

AT+CRC=?

Response

+CRC: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CRC?

Response

+CRC: <mode>

OK

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Parameters

See Write Command

Write Command

AT+CRC=[<mod

e>]

Response

TA controls whether or not the extended format of incoming call

indication is used.

OK

Parameters

<mode> 0 Disable extended format

1 Enable extended format

Omitted Use previous value

Unsolicited Result Code

When enabled, an incoming call is indicated to the TE with unsolicited

result code +CRING: <type> instead of the normal RING.

Parameters

<type> ASYNC Asynchronous transparent

SYNC Synchronous transparent

REL ASYNC Asynchronous non-transparent

REL SYNC Synchronous non-transparent

FAX Facsimile

VOICE Voice

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.32 AT+CREG Network Registration

AT+CREG Network Registration

Test Command

AT+CREG=?

Response

+CREG: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CREG?

Response

TA returns the status of result code presentation and an integer <stat>

which shows whether the network has currently indicated the registration

of the ME. Location information elements <lac> and <ci> are returned

only when <n>=2 and ME is registered in the network.

+CREG: <n>,<stat>[,<lac>,<ci>]

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OK

If error is related to ME functionality:

+CME ERROR: <err>

Write Command

AT+CREG=[<n>

]

Response

TA controls the presentation of an unsolicited result code +CREG: <stat>

when <n>=1 and there is a change in the ME network registration status.

OK

Parameters

<n> 0 Disable network registration unsolicited result code

1 Enable network registration unsolicited result code

+CREG: <stat>

2 Enable network registration unsolicited result code with

location information +CREG: <stat>[,<lac>,<ci>]

<stat> 0 Not registered, MT is not currently searching a new

operator to register to

1 Registered, home network

2 Not registered, but MT is currently searching a new

operator to register to

3 Registration denied

4 Unknown

5 Registered, roaming

<lac> String type (string should be included in quotation marks);

two byte location area code in hexadecimal format

<ci> String type (string should be included in quotation marks);

two byte cell ID in hexadecimal format

Unsolicited Result Code

If <n>=1 and there is a change in the MT network registration status

+CREG: <stat>

If <n>=2 and there is a change in the MT network registration status or a

change of the network cell:

+CREG: <stat>[,<lac>,<ci>]

Parameters

See Write Command

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

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3.2.33 AT+CRLP Select Radio Link Protocol Parameters

AT+CRLP Select Radio Link Protocol Parameters

Test Command

AT+CRLP=?

Response

TA returns values supported. RLP versions 0 and 1 share the same

parameter set.

+CRLP: (list of supported <iws>s),(list of supported <mws>s),(list of

supported <T1>s),(list of supported <N2>s),(list of supported <T4>s)

OK

Parameters

See Write Command

Read Command

AT+CRLP?

Response

TA returns current settings for RLP version. RLP versions 0 and 1 share

the same parameter set.

+CRLP: <iws>,<mws>,<T1>,<N2>,<T4>

OK

Parameters

See Write Command

Write Command

AT+CRLP=<iws

>[,<mws>[,<T1>[

,<N2>[,<T4>]]]]

Response

TA sets radio link protocol (RLP) parameters used when non-transparent

data calls are setup.

OK

Parameters

<iws> 0-61 Interworking window size (IWF to MS)

<mws> 0-61 Mobile window size(MS to IWF)

<T1> 44-255 Acknowledgment timer T1 in 10 ms units

<N2> 1-255 Retransmission attempts N2

<T4> 7 Re-sequencing period in integer format, in units of 10 ms.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Simcom redefine param`s value range

3.2.34 AT+CRSM Restricted SIM Access

AT+CRSM Restricted SIM Access

Test Command

AT+CRSM=?

Response

OK

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Write Command

AT+CRSM=<Co

mmand>[,<fileId

>[,<P1>,<P2>,<P

3>[,<data>]]]

Response

+CRSM: <sw1>, <sw2>[,<response>]

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

176 READ BINARY

178 READ RECORD

192 GET RESPONSE

214 UPDATE BINARY

220 UPDATE RECORD

242 STATUS

All other values are reserved; refer GSM 11.11.

<fileId> Integer type; this is the identifier for an elementary data file on

SIM. Mandatory for every Command except STATUS

<P1>,<P2>,<P3> Integer type, range 0 – 255

Parameters to be passed on by the ME to the SIM; refer GSM

11.11.

<data> Information which shall be written to the SIM (hex-decimal

character format)

<sw1>, <sw2> Integer type, range 0 - 255

Status information from the SIM about the execution of the

actual Command. These parameters are delivered to the TE in

both cases, on successful or failed execution of the Command;

refer GSM 11.11.

<response> Response of a successful completion of the Command

previously issued (hexadecimal character format)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

GSM 11.11

Note

3.2.35 AT+CSQ Signal Quality Report

AT+CSQ Signal Quality Report

Test Command

AT+CSQ=?

Response

+CSQ: (list of supported <rssi>s),(list of supported <ber>s)

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OK

Execution

Command

AT+CSQ

Response

+CSQ: <rssi>,<ber>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Execution Command returns received signal strength indication <rssi>

and channel bit error rate <ber> from the ME. Test Command returns

values supported by the TA.

Parameters

<rssi>

0 -115 dBm or less

1 -111 dBm

2...30 -110... -54 dBm

31 -52 dBm or greater

99 not known or not detectable

<ber> (in percent):

0...7 As RXQUAL values in the table in GSM 05.08 [20]

subclause 7.2.4

99 Not known or not detectable

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.36 AT+VTD Tone Duration

AT+VTD Tone Duration

Test Command

AT+VTD=?

Response

+VTD: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+VTD?

Response

+VTD: <n>

OK

Parameters

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See Write Command

Write Command

AT+VTD=<n>

Response

This command refers to an integer <n> that defines the length of tones

emitted as a result of the +VTS command. This does not affect the D

command.

OK

Parameters

<n> 1-255 Duration of the tone in 1/10 seconds

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.37 AT+VTS DTMF and Tone Generation

AT+VTS DTMF and Tone Generation

Test Command

AT+VTS=?

Response

+VTS: (list of supported <dtmf>s),(list of supported <duration>s)

OK

Parameters

See Write Command

Write Command

Generate tone

Duration is set by

+VTD

AT+VTS=<dtmf-

string>

Response

This command allows the transmission of DTMF tones and arbitrary

tones in voice mode. These tones may be used (for example) when

announcing the start of a recording period.

Note: D is used only for dialing.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Note: The Command is writing only.

Parameters

<dtmf-string> Which has a max length of 20 characters, must be entered

between double quotes ("") and consists of combinations of the following

separated by commas. But a single character does not require quotes.

1) <dtmf> A single ASCII characters in the set 0-9, #,*, A-D.

This is interpreted as a sequence of DTMF tones whose duration

is set by the +VTD Command.

2) {<dtmf>, <duration>} This is interpreted as a DTMF tone

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whose duration is determined by <duration>.

<duration> Duration of the tone in 1/10 seconds range :1-255

Parameter Saving

Mode

NO_SAVE

Max Response

Time

Number of DTMF characters*duration.

Reference

3GPP TS 27.007

[13]

Note

3.2.38 AT+CMUX Multiplexer Control

AT+CMUX Multiplexer Control

Test Command

AT+CMUX=?

Response

+CMUX: (0)

OK

Parameters

See Write Command

Read Command

AT+CMUX?

Response:

+CMUX:[<mode>[,<subset>[,<port_speed>[,<N1>[,<T1>[,<N2>[,<T2

>[,<T3>[,<k>]]]]]]]]]

OK

ERROR

Parameters

<mode> Multiplexer transparency mechanism

0 Basic option

<subset> The way in which the multiplexer control channel is set up

0 UIH frames used only

<port_speed> Transmission rate

1 9600 bits/t

2 19200 bits/t

3 38400 bits/t

4 57600 bits/t

5 115200 bit/s

6 230400 bits/t

7 460800 bits/t

Proprietary values, available if MUX NEW PORT

SPEED FTR is activated

<N1> Maximum frame size

1-255 Default: 127

<T1> Acknowledgement timer in units of ten milliseconds

1-255 Default:10 (100 ms)

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<N2> Maximum number of re-transmissions

0-100 Default:3

<T2> Max Response Timer for the multiplexer control channel in

units of ten milliseconds

2-255 Default:30

<T3> Wake up Max Response Timers in seconds

1-255 Default:10

<k> Window size, for Advanced operation with Error Recovery

options

1-7 Default:2

Write Command

AT+CMUX=<mo

de>

Response

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> Multiplexer transparency mechanism

0 Basic option

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

The multiplexing transmission rate is according to the current serial baud

rate. It is recommended to enable multiplexing protocol under 115200

bit/s baud rate

Multiplexer control channels are listed as follows:

Channel Number Type DLCI

None Multiplexer Control 0

1 3GPP TS 27.007 and 005 1

2 3GPP TS 27.007 and 005 2

3 3GPP TS 27.007 and 005 3

4 3GPP TS 27.007 and 005 4

3.2.39 AT+CNUM Subscriber Number

AT+CNUM Subscriber Number

Test Command

AT+CNUM=?

Response

OK

Execution

Command

AT+CNUM

Response

+CNUM: [<alpha1>],<number1>,<type1>[,<speed>,<service>]

[<CR><LF>+CNUM:[<alpha2>],<number2>,<type2>[,<speed>,<serv

ice>]

[...]]

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OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<alphax> Optional alphanumeric string associated with <numberx>;

used character set should be the one selected with Command Select TE

Character Set +CSCS

<numberx> String type (string should be included in quotation marks)

phone number of format specified by <typex>

<typex> Type of address octet in integer format (refer GSM04.08[8]

subclause 10.5.4.7)

<speed> As defined by the +CBST Command

<service> (service related to the phone number:)

0 Asynchronous modem

1 Synchronous modem

2 PAD Access (asynchronous)

3 Packet Access (synchronous)

4 Voice

5 Fax

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.40 AT+CPOL Preferred Operator List

AT+CPOL Preferred Operator List

Test Command

AT+CPOL=?

Response

+CPOL: (list of supported <index>s),(list of supported <format>s)

OK

Parameters

See Write Command

Read Command

AT+CPOL?

Response

+CPOL: <index1>,<format>,<oper1>

[<CR><LF>+CPOL: <index2>,<format>,<oper2>[…]]

OK

If error is related to ME functionality:

+CME ERROR: <err>

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Parameters

See Write Command

Write Command

AT+CPOL=<ind

ex>[,<format>,<o

per>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<index> Integer type: order number of operator in SIM preferred

operator list

<format> Indicates whether alphanumeric or numeric

format used (see +COPS Command)

0 Long format alphanumeric <oper>

1 Short format alphanumeric <oper>

2 Numeric <oper>

<oper> String type(string should be included in quotation marks)

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.41 AT+COPN Read Operator Names

AT+COPN Read Operator Names

Test Command

AT+COPN=?

Response

OK

Execution

Command

AT+COPN

Response

+COPN: <numeric1>,<alpha1>

[<CR><LF>+COPN: <numeric2>,<alpha2>

[…]]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<numericn> String type (string should be included in quotation marks):

operator in numeric format (see +COPS)

<alphan> String type (string should be included in quotation marks):

operator in long alphanumeric format (see +COPS)

Parameter Saving

Mode

NO_SAVE

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Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.42 AT+CFUN Set Phone Functionality

AT+CFUN Set Phone Functionality

Test Command

AT+CFUN=?

Response

+CFUN: (list of supported <fun>s),(list of supported <rst>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CFUN?

Response

+CFUN: <fun>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CFUN=<fun

>[,<rst>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<fun> 0 Minimum functionality

1 Full functionality (Default)

4 Disable phone both transmit and receive RF circuits.

<rst> 1 Reset the MT before setting it to <fun> power level.

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

10s

Reference

3GPP TS 27.007

[13]

Note

Minimum functionality mode (AT+CFUN=0)and RF disabled

functionality mode (AT+CFUN=4) cannot be switched to each other.

The <fun> power level will be written to flash except minimum

functionality.

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AT+CFUN=1,1 can be used to reset module purposely at minimum/full

functionality mode.

Response string "OK" will be returned after module resets if baud rate is

set to fixed baud rate.

3.2.43 AT+CCLK Clock

AT+CCLK Clock

Test Command

AT+CCLK=?

Response

OK

Read Command

AT+CCLK?

Response

+CCLK: <time>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CCLK=<tim

e>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<time> String type(string should be included in quotation marks)

value; format is "yy/MM/dd,hh:mm:ss±zz", where characters indicate

year (two last digits),month, day, hour, minutes, seconds and time zone

(indicates the difference, expressed in quarters of an hour, between the

local time and GMT; range -47...+48). E.g. 6th of May 2010, 00:01:52

GMT+2 hours equals to "10/05/06,00:01:52+08".

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

Only time zone is auto saved.

3.2.44 AT+CSIM Generic SIM Access

AT+CSIM Generic SIM Access

Test Command

AT+CSIM=?

Response

OK

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Write Command

AT+CSIM=<leng

th>,<Command>

Response

+CSIM: <length>,<response>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<length> Integer type: length of characters sent to the TE in

<Command> or <response> (i.e. twice the number of octets in the raw

data).

<Command> String type (string should be included in quotation

marks): hex format: GSM 11.11 SIM Command sent from the ME to the

SIM.

<response> String type(string should be included in quotation

marks): hex format: GSM 11.11 response from SIM to <Command>.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.45 AT+CALM Alert Sound Mode

AT+CALM Alert Sound Mode

Test Command

AT+CALM=?

Response

+CALM: (list of supported <mode>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CALM?

Response

+CALM: <mode>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

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Write Command

AT+CALM=<mo

de>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 0 Normal mode

1 Silent mode (all sounds from ME are prevented)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

If CALM is set to silent mode before, when user sets CALM to normal

mode during an incoming call, the module maintains silent this time. But

next time the normal mode works.

3.2.46 AT+CALS Alert Sound Select

AT+CALS Alert Sound Select

Test Command

AT+CALS=?

Response

+CALS: (list of supported <n>s),(list of supported <switch>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CALS?

Response

+CALS: <n>,<switch>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CALS=<n>[,

<switch>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> 0-19 Alert sound type

<switch> 0 stop playing ring tone

1 start to play ring tone

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Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

3.2.47 AT+CRSL Ringer Sound Level

AT+CRSL Ringer Sound Level

Test Command

AT+CRSL=?

Response

+CRSL: (list of supported <level>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

See Write Command

Read Command

AT+CRSL?

Response

+CRSL: <level>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CRSL=<leve

l>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<level> integer type value (0-100) with manufacturer specific range

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.48 AT+CLVL Loud Speaker Volume Level

AT+CLVL Loud Speaker Volume Level

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Test Command

AT+CLVL=?

Response

+CLVL: (list of supported <level>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CLVL?

Response

+CLVL: <level>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

See Write Command

Write Command

AT+CLVL=<leve

l>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<level> 0-100 Integer type value with manufacturer specific range

(smallest value represents the lowest sound level).

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.49 AT+CMUT Mute Control

AT+CMUT Mute Control

Test Command

AT+CMUT=?

Response

+CMUT: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CMUT?

Response

+CMUT: <n>

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OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CMUT=<n>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> 0 Mute off

1 Mute on

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

Only during a call this command can be set successfully.

3.2.50 AT+CPUC Price Per Unit and Currency Table

AT+CPUC Price Per Unit and Currency Table

Test Command

AT+CPUC=?

Response

OK

Read Command

AT+CPUC?

Response

+CPUC: <currency>,<ppu>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CPUC=<cur

rency>,<ppu>[,<

passwd>]

Response

OK

+CME ERROR: <err>

Parameters

<currency> String type (string should be included in quotation marks);

three-character currency code (e.g. "GBP", "DEM");character set as

specified by "AT+CSCS" command

<ppu> String type (string should be included in quotation marks); price

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per unit; dot is used as a decimal separator(e.g. "2.66")

<passwd> String type (string should be included in quotation marks);

SIM PIN2

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.007

[13]

Note

3.2.51 AT+CCWE Call Meter Maximum Event

AT+CCWE Call Meter Maximum Event

Test Command

AT+CCWE=?

Response

+CCWE: (list of supported <mode>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CCWE?

Response

+CCWE: <mode>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CCWE=<m

ode>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 0 Disable call meter warning event

1 Enable call meter warning event

Unsolicited result codes supported:

+CCWV Shortly before the ACM (Accumulated Call Meter)

maximum value is reached, an unsolicited result code +CCWV will be

sent, if enabled by this command. The warning is issued approximately

when 5 seconds call time remains. It is also issued when starting a call if

less than 5 s call time remains.

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Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3GPP TS 27.007 specifies 30 seconds, so SIMCom deviates from the

specification.

3.2.52 AT+CBC Battery Charge

AT+CBC Battery Charge

Test Command

AT+CBC=?

Response

+CBC: (list of supported <bcs>s),(list of supported <bcl>s),(<voltage>)

OK

Parameters

See Execution Command

Execution

Command

AT+CBC

Response

+CBC: <bcs>, <bcl>,<voltage>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<bcs> Charge status

0 ME is not charging

1 ME is charging

2 Charging has finished

<bcl> Battery connection level

1...100 battery has 1-100 percent of capacity remaining

vent

<voltage> Battery voltage(mV)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.007

[13]

Note

3.2.53 AT+CUSD Unstructured Supplementary Service Data

AT+CUSD Unstructured Supplementary Service Data

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Test Command

AT+CUSD=?

Response

+CUSD: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CUSD?

Response

+CUSD: <n>

OK

Parameters

See Write Command

Write Command

AT+CUSD=<n>[,

<str>[,<dcs>]]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> A numeric parameter which indicates control of the unstructured

supplementary service data

0 disable the result code presentation in the TE

1 enable the result code presentation in the TE

2 cancel session (not applicable to read Command response)

<str> String type (string should be included in quotation marks)

USSD-string

<dcs> Cell Broadcast Data Coding Scheme in integer format

(default 0)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

GSM 03.38 [25]

Note

When ussd is not suport or return error,TE will print +CUSD:4.

3.2.54 AT+CSSN Supplementary Services Notification

AT+CSSN Supplementary Services Notification

Test Command

AT+CSSN=?

Response

+CSSN: (list of supported <n>s),(list of supported <m>s)

OK

Parameters

See Write Command

Read Command Response

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AT+CSSN? +CSSN: <n>,<m>

OK

Parameters

See Write Command

Write Command

AT+CSSN=<n>[,

<m>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> A numeric parameter which indicates whether to show the

+CSSI:<code1>[,<index>] result code presentation status after a mobile

originated call setup

0 disable

1 enable

<m> A numeric parameter which indicates whether to show the

+CSSU: <code2> result code presentation status during a mobile

terminated call setup or during a call, or when a forward check

supplementary service notification is received.

0 disable

1 enable

<code1> 0 Unconditional call forwarding is active

1 Some of the conditional call forwarding are active

2 Call has been forwarded

3 Call is waiting

4 This is a CUG call (also <index> present)

5 Outgoing calls are barred

6 Incoming calls are barred

7 CLIR suppression rejected

<index> Closed user group index

<code2> 0 This is a forwarded call

1 This is a CUG call (also <index> present) (MT call

setup)

2 Call has been put on hold (during a voice call)

3 Call has been retrieved (during a voice call)

4 Multiparty call entered (during a voice call)

5 Call on hold has been released (this is not a SS

notification) (during a voice call)

6 Forward check SS message received (can be received

whenever)

7 Call is being connected (alerting) with the remote party

in alerting state in explicit call transfer operation (during a voice call)

8 Call has been connected with the other remote party in

explicit call transfer operation (also number and subaddress parameters

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may be present) (during a voice call or MT call setup)

9 This is a deflected call (MT call setup)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

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4 AT Commands According to 3GPP TS 27.005

The 3GPP TS 27.005 commands are for performing SMS and CBS related operations. SIM800

Series supports both Text and PDU modes.

4.1 Overview of AT Commands According to 3GPP TS 27.005

Command Description

AT+CMGD Delete SMS message

AT+CMGF Select SMS message format

AT+CMGL List SMS messages from preferred store

AT+CMGR Read SMS message

AT+CMGS Send SMS message

AT+CMGW Write SMS message to memory

AT+CMSS Send SMS message from storage

AT+CNMI New SMS message indications

AT+CPMS Preferred SMS message storage

AT+CRES Restore SMS settings

AT+CSAS Save SMS settings

AT+CSCA SMS service center address

AT+CSCB Select cell broadcast SMS messages

AT+CSDH Show SMS text mode parameters

AT+CSMP Set SMS text mode parameters

AT+CSMS Select message service

4.2 Detailed Descriptions of AT Commands According to 3GPP TS 27.005

4.2.1 AT+CMGD Delete SMS Message

AT+CMGD Delete SMS Message

Test Command

AT+CMGD=?

Response

+CMGD: (list of supported <index>s),(list of supported <delflag>s)

OK

Parameters

See Write Command

Write Command

AT+CMGD=<in

dex>[,<delflag>]

Response

TA deletes message from preferred message storage <mem1

> location

<index>.

OK

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ERROR

If error is related to ME functionality:

+CMS ERROR: <err>

Parameters

<index> Integer type; value in the range of location numbers supported by

the associated memory

<delflag> 0 Delete the message specified in <index>

1 Delete all read messages from preferred message storage,

leaving unread messages and stored mobile originated

messages (whether sent or not) untouched

2 Delete all read messages from preferred message storage

and sent mobile originated messages, leaving unread

messages and unsent mobile originated messages

untouched

3 Delete all read messages from preferred message storage,

sent and unsent mobile originated messages leaving

unread messages untouched

4 Delete all messages from preferred message storage

including unread messages

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s（delete 1 message）

25s（delete 50 messages）

25s（delete 150 messages）

Reference

3GPP TS 27.005

Note

4.2.2 AT+CMGF Select SMS Message Format

AT+CMGF Select SMS Message Format

Test Command

AT+CMGF=?

Response

+CMGF: (list of supported <mode>s)

OK

Parameter

See Write Command

Read Command

AT+CMGF?

Response

+CMGF: <mode>

OK

Parameter

See Write Command

Write Command Response

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AT+CMGF=[<m

ode>]

TA sets parameter to den

ote which input and output format of messages to

use.

OK

Parameter

<mode> 0 PDU mode

1 Text mode

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

4.2.3 AT+CMGL List SMS Messages from Preferred Store

AT+CMGL List SMS Messages from Preferred Store

Test Command

AT+CMGL=?

Response

+CMGL: (list of supported <stat>s)

OK

Parameter

See Write Command

Write Command

AT+CMGL=<sta

t>[,<mode>]

Parameters

1) If text mode:

<stat> "REC UNREAD" Received unread messages

"REC READ" Received read messages

"STO UNSENT" Stored unsent messages

"STO SENT" Stored sent messages

"ALL" All messages

<mode> 0 Normal

1 Not change status of the specified SMS record

2) If PDU mode:

<stat> 0 Received unread messages

1 Received read messages

2 Stored unsent messages

3 Stored sent messages

4 All messages

<mode> 0 Normal

1 Not change status of the specified SMS record

Response

TA returns messages with status value <stat

> from message storage

<mem1

> to the TE. If status of the message is 'received unread', status in

the storage changes to 'received read'.

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1) If text mode (+CMGF=1) and Command successful:

for SMS-SUBMITs and/or SMS-DELIVERs:

+CMGL: <index>,<stat>,<oa/da>[,<alpha>][,<scts>]

[,<tooa/toda>,<length>]<CR><LF><data>

[<CR><LF>+CMGL: <index>,<stat>,<da/oa>

[,<alpha>][,<scts>][,<tooa/toda>,<length>]<CR><LF><data>[...]]

for SMS-STATUS-REPORTs:

+CMGL: <index>,<stat>,<fo>,<mr>[,<ra>][,<tora>],<scts>,<dt>,<st>

[<CR><LF>+CMGL: <index>,<stat>,<fo>,<mr>

[,<ra>][,<tora>],<scts>,<dt>,<st>[...]]

for SMS-COMMANDs:

+CMGL: <index>,<stat>,<fo>,<ct>[<CR><LF>

+CMGL: <index>,<stat>,<fo>,<ct>[...]]

for CBM storage:

+CMGL:<index>,<stat>,<sn>,<mid>,<page>,<pages>

<CR><LF><data>[...]]

OK

2) If PDU mode (+CMGF=0) and Command successful:

+CMGL:<index>,<stat>[,<alpha>],<length>

+CMGL: <index>,<stat>[,alpha],<length>

<CR><LF><pdu>[...]]

OK

3)If error is related to ME functionality:

+CMS ERROR: <err>

Parameters

<alpha> String type(string should be included in quotation marks)

alphanumeric representation of <da> or <oa> corresponding to the entry

found in MT phonebook; implementation of this feature is manufacturer

specific; used character set should be the one selected with Command Select

TE Character Set +CSCS (see definition of this Command in 3GPP TS

27.007)

<da> GSM 03.40 TP-Destination-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet characters) are

converted to characters of the currently selected TE character set (refer

Command +CSCS in 3GPP TS 27.007); type of address given by <toda>

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<data> In the case of SMS: GSM 03.40 TP-User-Data in text mode

responses; format:

- if <dcs> indicates that GSM 03.38 default alphabet is used and

<fo> indicates that GSM 03.40 TPUser-Data-Header-Indication

is not set:

- if TE character set other than "HEX" (refer Command Select

TE Character Set +CSCS in 3GPP TS 27.007):ME/TA converts

GSM alphabet into current TE character set according to rules

of Annex A

- if TE character set is "HEX": ME/TA converts each 7-bit

character of GSM alphabet into two IRA character long

hexadecimal number (e.g. character P (GSM 23) is presented as

17 (IRA 49 and 55))

- if <dcs> indicates that 8-bit or UCS2 data coding scheme is

used, or <fo> indicates that GSM 03.40

TP-User-Data-Header-Indication is set: ME/TA converts each

8-bit octet into two IRA character long hexadecimal number

(e.g. octet with integer value 42 is presented to TE as two

characters 2A (IRA 50 and 65)) In the case of CBS: GSM 03.41

CBM Content of Message in text mode responses; format:

- if <dcs> indicates that GSM 03.38 default alphabet is used:

- if TE character set other than "HEX" (refer Command +CSCS

in 3GPP TS 27.007): ME/TA converts GSM alphabet into

current TE character set according to rules of Annex A

- if TE character set is "HEX": ME/TA converts each 7-bit

character of GSM alphabet into two IRA character long

hexadecimal number

- if <dcs> indicates that 8-bit or UCS2 data coding scheme is

used: ME/TA converts each 8-bit octet into two IRA character

long hexadecimal number

<length> Integer type value indicating in the text mode (+CMGF=1)

the length of the message body <data> (or <cdata>) in characters; or in

PDU mode (+CMGF=0), the length of the actual TP data unit in octets (i.e.

the RP layer SMSC address octets are not counted in the length)

<index> Integer type; value in the r

ange of location numbers supported

by the associated memory

<oa> GSM 03.40 TP-Originating-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet characters) are

converted to characters of the currently selected TE character set (refer

Command +CSCS in 3GPP TS 27.007); type of address given by <tooa>

<pdu> In the case of SMS: GSM 04.11 SC address followed by

GSM 03.40 TPDU in hexadecimal format: ME/TA converts each octet of

TP data unit into two IRA character long hexadecimal number (e.g. octet

with integer value 42 is presented to TE as two characters 2A (IRA 50 and

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65)). In the case of CBS: GSM 03.41 TPDU in hexadecimal format.

<scts> GSM 03.40 TP-Service-Center-Time-Stamp in time-string

format (refer <dt>)

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet

in integer format (when first character of <da> is + (IRA 43) default is 145,

otherwise default is 129)

<tooa> GSM 04.11 TP-Originating-Address Type-of-

Address octet in

integer format (default refer<toda>)

Execution

Command

AT+CMGL

1) If text mode:

the same as AT+CMGL="REC UNREAD", received unread messages

2) If PDU mode:

the same as AT+CMGL=0, received unread messages

See more messages please refer to Write Command.

Parameters

See Write Command

Parame

ter Saving

Mode

NO_SAVE

Max Response

Time

20s(list 50 messages)

20s(list 150 messages)

Reference

3GPP TS 27.005

Note

4.2.4 AT+CMGR Read SMS Message

AT+CMGR Read SMS Message

Test Command

AT+CMGR=?

Response

OK

Write Command

AT+CMGR=<in

dex>[,<mode>]

Parameters

<index> Integer type; value in the range of location numbers supported

by the associated memory

<mode> 0 Normal

1 Not change status of the specified SMS record

Response

TA returns SMS message with location value <index> from

message

storage <mem1

> to the TE. If status of the message is 'received unread',

status in the storage changes to 'received read'.

1) If text mode (+CMGF=1) and Command successful:

for SMS-DELIVER:

+CMGR: <stat>,<oa>[,<alpha>],<scts>[,<tooa>,<fo>,<pid>,<dcs>

,<sca>,<tosca>,<length>]<CR><LF><data>

for SMS-SUBMIT:

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+CMGR: <stat>,<da>[,<alpha>][,<toda>,<fo>,<pid>,<dcs>[,<vp>]

,<sca>,<tosca>,<length>]<CR><LF><data>

for SMS-STATUS-REPORTs:

+CMGR: <stat>,<fo>,<mr>[,<ra>][,<tora>],<scts>,<dt>,<st>

for SMS-COMMANDs:

+CMGR: <stat>,<fo>,<ct>[,<pid>[,<mn>][,<da>][,<toda>]

,<length><CR><LF><cdata>]

for CBM storage:

+CMGR: <stat>,<sn>,<mid>,<dcs>,<page>,<pages><CR><LF><data>

2) If PDU mode (+CMGF=0) and Command successful:

+CMGR: <stat>[,<alpha>],<length><CR><LF><pdu>

OK

3) If error is related to ME functionality:

+CMS ERROR: <err>

Parameters

<alpha> String type (string should be included in quotation marks)

alphanumeric representation of <da> or <oa> corresponding to the entry

found in MT phonebook; implementation of this feature is manufacturer

specific

<da> GSM 03.40 TP-Destination-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet characters) are

converted to characters of the currently selected TE character set (specified

by +CSCS in 3GPP TS 27.007); type of address given by <toda>

<data> In the case of SMS: GSM 03.40 TP-User-Data in text mode

responses; format:

- if <dcs> indicates that GSM 03.38 default alphabet is used and

<fo> indicates that GSM 03.40 TPUser-Data-Header-Indication

is not set:

- if TE character set other than "HEX" (refer Command Select

TE Character Set +CSCS in 3GPP TS 27.007):ME/TA converts

GSM alphabet into current TE character set according to rules

of Annex A

- if TE character set is "HEX": ME/TA converts each 7-bit

character of GSM alphabet into two IRA character long

hexadecimal number (e.g. character P (GSM 23) is presented as

17 (IRA 49 and 55))

- if <dcs> indicates that 8-bit or UCS2 data coding scheme is

used, or <fo> indicates that GSM 03.40

TP-User-Data-Header-Indication is set: ME/TA converts each

8-bit octet into two IRA character long hexadecimal number

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(e.g. octet with integer value 42 is presented to TE as two

characters 2A (IRA 50 and 65)) In the case of CBS: GSM 03.41

CBM Content of Message in text mode responses; format:

- if <dcs> indicates that GSM 03.38 default alphabet is used:

- if TE character set other than "HEX" (refer Command +CSCS

in 3GPP TS 27.007): ME/TA converts GSM alphabet into

current TE character set according to rules of Annex A

- if TE character set is "HEX": ME/TA converts each 7-bit

character of GSM alphabet into two IRA character long

hexadecimal number

- if <dcs> indicates that 8-bit or UCS2 data coding scheme is

used: ME/TA converts each 8-bit octet into two IRA character

long hexadecimal number

<dcs> Depending on the Command or result code: GSM 03.38 SMS

Data Coding Scheme (default 0), or Cell Broadcast Data Coding Scheme in

integer format

<fo> Depending on the Command or result code: first octet of

GSM 03.40 SMS-DELIVER, SMS-SUBMIT (default 17),

SMS-STATUS-REPORT, or SMS-COMMAND (default 2) in integer

format

<length> integer type value indicating in the text mode (+CMGF=1)

the length of the message body <data> (or <cdata>) in characters; or

in PDU mode (+CMGF=0), the length of the actual TP data unit in octets

(i.e. the RP layer SMSC address octets are not counted in the length)

<mid> GSM 03.41 CBM Message Identifier in integer format

<oa> GSM 03.40 TP-Originating-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet characters) are

converted characters of the currently selected TE character set (specified by

+CSCS in 3GPP TS 27.007); type of address given by <tooa>

<pdu> In the case of SMS: GSM 04.11 SC address followed by

GSM 03.40 TPDU in hexadecimal format: ME/TA converts each octet of

TP data unit into two IRA character long hexadecimal number (e.g. octet

with integer value 42 is presented to TE as two characters 2A (IRA 50 and

65)). In the case of CBS: GSM 03.41 TPDU in hexadecimal format.

<pid> GSM 03.40 TP-Protocol-Identifier in integer format

(default 0)

<sca> GSM 04.11 RP SC address Address-Value field in string

format; BCD numbers (or GSM default alphabet characters) are converted

to characters of the currently selected TE character set (specified by +CSCS

in 3GPP TS 27.007); type of address given by <tosca>

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string

format (refer <dt>)

<stat> 0 "REC UNREAD" Received unread messages

1 "REC READ" Received read messages

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2 "STO UNSENT" Stored unsent messages

3 "STO SENT" Stored sent messages

4 "ALL" All messages

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet

in integer format (when first character of <da> is + (IRA 43) default is 145,

otherwise default is 129)

<tooa> GSM 04.11 TP-Originating-Address Type-of-Address octet

in integer format (default refer<toda>)

<tosca> GSM 04.11 RP SC address Type-of-Address octet in integer

format (default refer <toda>)

<vp> Depending on SMS-SUBMIT <fo> setting: GSM 03.40

TP-Validity-Period either in integer format (default 167) or in time-string

format (refer <dt>)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.005

Note

4.2.5 AT+CMGS Send SMS Message

AT+CMGS Send SMS Message

Test Command

AT+CMGS=?

Response

OK

Write Command

1) If text mode

(+CMGF=1):

+CMGS=<da>[,

<toda>]

<CR>text is

entered

<ctrl-Z/ESC>

ESC quits without

sending

2) If PDU mode

(+CMGF=0):

+CMGS=<length

>

<CR>PDU is

given

<ctrl-Z/ESC>

Parameters

<da> GSM 03.40 TP-Destination-Address Address-Value field in

string format(string should be included in quotation marks); BCD numbers

(or GSM default alphabet characters) are converted to characters of the

currently selected TE character set (specified by +CSCS in 3GPP TS

27.007); type of address given by <toda>

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet

in integer format (when first character of <da> is + (IRA 43) default is 145,

otherwise default is 129)

<length> Integer type value (not exceed 160 bytes) indicating in the

text mode (+CMGF=1) the length of the message body <data> (or

<cdata>) in characters; or in PDU mode (+CMGF=0), the length of the

actual TP data unit in octets (i.e. the RP layer SMSC address octets are not

counted in the length)

Response

TA sends message from a TE to the network (SMS-SUBMIT). Message

reference value <mr> is returned to the TE on successful message delivery.

Optionally (when +CSMS <service> value is 1 and network supports)

<scts> is returned. Values can be used to identify message upon unsolicited

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delivery status report result code.

1) If text mode(+CMGF=1) and sending successful:

+CMGS: <mr>

OK

2) If PDU mode(+CMGF=0) and sending successful:

+CMGS: <mr>

OK

3)If error is related to ME functionality:

+CMS ERROR: <err>

Parameter

<mr> GSM 03.40 TP-Message-Reference in integer format

Parameter Saving

Mode

NO_SAVE

Max Response

Time

60s

Reference

3GPP TS 27.005

Note

l In text mode, the maximum length of an SMS depends on the used

coding scheme: It is 1024 characters if the 7 bit GSM coding scheme is

used.

l Reject incoming call when sending messages.

4.2.6 AT+CMGW Write SMS Message to Memory

AT+CMGW Write SMS Message to Memory

Test Command

AT+CMGW=?

Response

OK

Write Command

1) If text mode

(+CMGF=1):

AT+CMGW=<o

a/da>[,<tooa/tod

a>][,<stat>]

<CR> text is

entered

<ctrl-Z/ESC>

<ESC> quits

without sending

2) If PDU mode

(+CMGF=0):

AT+CMGW=<le

ngth>[,<stat>]

Response

TA transmits SMS message (either SMS-DELIVER or SMS-

SUBMIT)

from TE to memory storage <mem2>. Memory location <index

> of the

stored message is returned. By default message status will be set to 'stored

unsent', but parameter <stat> allows also other status values to be given.

If writing is successful:

+CMGW: <index>

OK

If error is related to ME functionality:

+CMS ERROR: <err>

Parameters

<oa> GSM 03.40 TP-Originating-Address Address-Value field in

string format(string should be included in quotation marks); BCD numbers

(or GSM default alphabet characters) are converted to characters of the

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<CR>PDU is

given

<ctrl-Z/ESC>

currently selected TE character set (specified by +CSCS in 3GPP TS

27.007);type of address given by <tooa>

<da> GSM 03.40 TP-Destination-Address Address-Value field in

string format(string should be included in quotation marks); BCD numbers

(or GSM default alphabet characters) are converted to characters of the

currently selected TE character set (specified by +CSCS in 3GPP TS

27.007); type of address given by <toda>

<tooa> GSM 04.11 TP-Originating-Address Type-of-Address octet

in integer format (default refer <toda>)

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet in

integer format (when first character of <da> is + (IRA 43) default is 145,

otherwise default is 129)

129 Unknown type(IDSN format number)

161 National number type(IDSN format)

145 International number type(ISDN format)

177 Network specific number(ISDN format)

<length> Integer type value (not exceed 160 bytes) indicating in the

text mode (+CMGF=1) the length of the message body <data> (or

<cdata>) in characters;

or in PDU mode (+CMGF=0), the length of the actual TP

data unit in octets (i.e. the RP layer SMSC address octets are

not counted in the length)

<stat> in the text mode (+CMGF=1):

"STO UNSENT" Stored unsent messages

"STO SENT" Stored sent messages

in PDU mode (+CMGF=0):

0 Received unread messages

1 Received read messages

2 Stored unsent messages

3 Stored sent messages

<pdu> In the case of SMS: GSM 04.11 SC address followed by

GSM 03.40 TPDU in hexadecimal format: ME/TA converts each octet of

TP data unit into two IRA character long hexadecimal number (e.g. octet

with integer value 42 is presented to TE as two characters 2A (IRA 50 and

65)). In the case of CBS: GSM 03.41 TPDU in hexadecimal format.

<index> Index of message in selected storage <mem2>

Execution

Command

AT+CMGW

Response

TA transmits SMS message (either SMS-DELIVER or SMS-

SUBMIT)

from TE to memory storage <mem2>. Memory location <index

> of the

stored message is returned. By default message status

will be set to 'stored

unsent', but parameter <stat> allows also other status values to be given.

If writing is successful:

+CMGW: <index>

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OK

If error is related to ME functionality:

+CMS ERROR: <err>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.005

Note

4.2.7 AT+CMSS Send SMS Message from Storage

AT+CMSS Send SMS Message from Storage

Test Command

AT+CMSS=?

Response

OK

Write Command

AT+CMSS=<ind

ex>[,<da>,<toda

>]

Response

TA sends message with location value <index> f

rom message storage

<mem2> to the network (SMS-SUBMIT). If new recipient address <da

> is

given, it shall be used instead of the one stored with the message. Reference

value <mr

> is returned to the TE on successful message delivery. Values

can be used to id

entify message upon unsolicited delivery status report

result code.

1) If text mode(+CMGF=1) and sending successful:

+CMSS: <mr>

OK

2) If PDU mode(+CMGF=0) and sending successful:

+CMSS: <mr>

OK

3)If error is related to ME functionality:

+CMS ERROR: <err>

Parameters

<index> I

nteger type; value in the range of location numbers supported

by the associated memory

<da> GSM 03.40 TP-Destination-Address Address-Value field in

string format(string should be included in quotation marks); BCD numbers

(or GSM default alphabet characters) are converted to characters of the

currently selected TE character set (specified by +CSCS in 3GPP TS

27.007); type of address given by <toda>

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet

in integer format (when first character of <da> is + (IRA 43) default is 145,

otherwise default is 129)

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<mr> GSM 03.40 TP-Message-Reference in integer format

Parameter Saving

Mode

NO_SAVE

Max Response

Time

60s

Reference

3GPP TS 27.005

Note

4.2.8 AT+CNMI New SMS Message Indications

AT+CNMI New SMS Message Indications

Test Command

AT+CNMI=?

Response

+CNMI: (list of supported <mode>s),(list of supported <mt>s),(list of

supported <bm>s),(list of supported <ds>s),(list of supported <bfr>s)

OK

Parameters

See Write Command

Read Command

AT+CNMI?

Response

+CNMI: <mode>,<mt>,<bm>,<ds>,<bfr>

OK

Parameters

See Write Command

Write Command

AT+CNMI=<mo

de>[,<mt>[,<bm

>[,<ds>[,<bfr>]]]

]

Response

TA selects the procedure for how the receiving of new messages from the

network is

indicated to the TE when TE is active, e.g. DTR signal is ON. If

TE is inactive (e.g. DTR signal is OFF), message receiving should be done

as specified in GSM 03.38.

OK

ERROR

Parameters

<mode> 0 Buffer unsolicited result codes in the TA. If TA result

code buffer is full, indications can be buffered in some other place or the

oldest indications may be discarded and replaced with the new received

indications.

1 Discard indication and reject new received message

unsolicited result codes when TA-TE link is reserved (e.g. in on-line data

mode). Otherwise forward them directly to the TE.

2 Buffer unsolicited result codes in the TA when TA-TE

link is reserved (e.g. in on-line data mode) and flush them to the TE after

reservation. Otherwise forward them directly to the TE.

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3 Forward unsolicited result codes directly to the TE.

TA-TE link specific inband technique used to embed result codes and data

when TA is in on-line data mode.

<mt> (the rules for storing received SMs depend on its data coding

scheme (refer GSM 03.38 [2]), preferred memory storage (+CPMS) setting

and this value):

0 No SMS-DELIVER indications are routed to the TE.

1 If SMS-DELIVER is stored into ME/TA, indication of

the memory location is routed to the TE using unsolicited result code:

+CMTI: <mem>,<index>

2 SMS-DELIVERs (except class 2) are routed directly to

the TE using unsolicited result code:

+CMT: [<alpha>],<length><CR><LF><pdu> (PDU mode enabled) or

+CMT: <oa>,[<alpha>],<scts>

[,<tooa>,<fo>,<pid>,<dcs>,<sca>,<tosca>,<length>]<CR><LF><data>

(text mode enabled; about parameters in italics, refer Command Show Text

Mode Parameters +CSDH). Class 2 messages result in indication as defined

in <mt>=1.

3 Class 3 SMS-DELIVERs are routed directly to TE

using unsolicited result codes defined in <mt>=2. Messages of other classes

result in indication as defined in <mt>=1.

<bm> (the rules for storing received CBMs depend on its data

coding scheme (refer GSM 03.38 [2]), the setting of Select CBM Types

(+CSCB) and this value):

0 No CBM indications are routed to the TE.

2 New CBMs are routed directly to the TE using

unsolicited result code: +CBM: <length><CR><LF><pdu> (PDU mode

enabled) or

+CBM: <sn>,<mid>,<dcs>,<page>,<pages><CR><LF><data> (text

mode enabled).

<ds> 0 No SMS-STATUS-REPORTs are routed to the TE.

1 SMS-STATUS-REPORTs are routed to the TE using

unsolicited result code: +CDS:<length><CR><LF><pdu> (PDU mode

enabled) or +CDS: <fo>,<mr>[,<ra>][,<tora>],<scts>,<dt>,<st> (text

mode enabled)

<bfr> 0 TA buffer of unsolicited result codes defined within this

Command is flushed to the TE when <mode> 1...3 is entered (OK response

shall be given before flushing the codes).

1 TA buffer of unsolicited result codes defined within this

command is cleared when <mode> 1…3 is entered

Unsolicited result code

1. Indicates that new message has been received

If <mt>=1:

+CMTI: <mem3>, <index>

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If <mt>=2 (PDU mode enabled):

+CMT: [<alpha>],<length><CR><LF><pdu>

If <mt>=2 (text mode enabled):

+CMT: <oa>, <scts>[, <tooa>, <fo>, <pid>, <dcs>, <sca>, <tosca>,

2. Indicates that new cell broadcast message has been received

If <bm>=2 (PDU mode enabled):

+CBM: <length><CR><LF><pdu>

If <bm>=2 (text mode enabled):

+CBM: <sn>, <mid>, <dcs>, <page>, <pages><CR><LF><data>

3. Indicates that new SMS status report has been received

If <ds>=1 (PDU mode enabled):

+CDS: <length><CR><LF><pdu>

If <ds>=1 (text mode enabled):

+CDS: <fo>, <mr>[, <ra>][, <tora>], <scts>, <dt>, <st>

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

4.2.9 AT+CPMS Preferred SMS Message Storage

AT+CPMS Preferred SMS Message Storage

Test Command

AT+CPMS=?

Response

+CPMS: (list of supported <mem1>s),(list of supported <mem2>s),(list of

supported <mem3>s)

OK

Parameters

See Write Command

Read Command

AT+CPMS?

Response

+CPMS: <mem1>,<used1>,<total1>,<mem2>,<used2>,<total2>,

OK

ERROR

Parameters

See Write Command

Write Command Response

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AT+CPMS=<me

m1>[,<mem2>[,<

mem3>]]

TA selects memory stor

ages <mem1>, <mem2> and <mem3> to be used for

reading, writing, etc.

+CPMS: <used1>,<total1>,<used2>,<total2>,<used3>,<total3>

OK

ERROR

Parameters

<mem1> Messages to be read and deleted from this memory storage

"SM" SIM message storage

"ME" Phone message storage

"SM_P" SM message storage preferred

"ME_P" ME message storage preferred

"MT" SM or ME message storage ( SM preferred)

<mem2> Messages will be written and sent to this memory storage

"SM" SIM message storage

"ME" Phone message storage

"SM_P" SM message storage preferred

"ME_P" ME message storage preferred

"MT" SM or ME message storage ( SM preferred)

<mem3> Received messages will be placed in this memory storage if

routing to PC is not set ("+CNMI")

"SM" SIM message storage

"ME" Phone message storage

"SM_P" SM message storage preferred

"ME_P" ME message storage preferred

"MT" SM or ME message storage ( SM preferred)

<usedx> Integer type; Number of messages currently in <memx>

<totalx> Integer type; Number of messages storable in <memx>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

4.2.10 AT+CRES Restore SMS Settings

AT+CRES Restore SMS Settings

Test Command

AT+CRES=?

Response

+CRES: (list of supported <profile>s)

OK

Parameter

See Write Command

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Write Command

AT+CRES=<pro

file>

Response

Execution command restores message service settings from non-v

olatile

memory to active memory. A TA can contain several profiles of settings.

Settings specified in commands Service Centre Address +CSCA and

Set

Message Parameters +CSMP are restored. Certain settings may not be

supported by the storage (e.g. (U)SIM SMS parameters) and therefore can

not be restored.

OK

ERROR

Parameter

<profile> 0 Restore SM service settings from profile 0

1 Restore SM service settings from profile 1

2 Restore SM service settings from profile 2

3 Restore SM service settings from profile 3

Execution

Command

AT+CRES

Response

Same as AT+CRES=0.

OK

If error is related to ME functionality:

+CMS ERROR <err>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.005

Note

4.2.11 AT+CSAS Save SMS Settings

AT+CSAS Save SMS Settings

Test Command

AT+CSAS=?

Response

+CSAS: (list of supported <profile>s)

OK

Parameter

See Write Command

Write Command

AT+CSAS=<prof

ile>

Response

Execution command saves active message service settings to a non-

volatile

memory. Setti

ngs specified in commands Service Centre Address +CSCA

and Set Message Parameters +CSMP are saved. Certain settings may not be

supported by the storage (e.g. (U)SIM SMS parameters) and therefore can

not be saved.

OK

ERROR

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Parameter

<profile> 0 Save SM service setting in profile 0

1 Save SM service setting in profile 1

2 Save SM service setting in profile 2

3 Save SM service setting in profile 3

Execution

Command

AT+CSAS

Response

Same as AT+CSAS=0

OK

If error is related to ME functionality:

+CMS ERROR <err>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.005

Note

4.2.12 AT+CSCA SMS Service Center Address

AT+CSCA SMS Service Center Address

Test Command

AT+CSCA=?

Response

OK

Read Command

AT+CSCA?

Response

+CSCA: <sca>,<tosca>[,<scaAlpha>]

OK

Parameters

See Write Command

Write Command

AT+CSCA=<sca

>[,<tosca>]

Response

TA updates the SMSC address, through which mobile originated SMS are

transmitted. In text mode, setting is used by send and writes commands. In

PDU

mode, setting is used by the same commands, but only when the

length of the SMSC address coded into <pdu> parameter equals zero.

Note: The Command writes the parameters in NON-VOLATILE memory.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<sca> GSM 04.11 RP SC address Address-Value field in string

format(string should be included in quotation marks); BCD numbers (or

GSM default alphabet characters) are converted to characters of the

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currently selected TE character set (specified by +CSCS in 3GPP TS

27.007); type of address given by <tosca>

<tosca> Service center address format GSM 04.11 RP SC address

Type-of-Address octet in integer format (default refer <toda>)

<scaAlpha> String type(string should be included in quotation

marks)

Service center address alpha data

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s

Reference

3GPP TS 27.005

Note

4.2.13 AT+CSCB Select Cell Broadcast SMS Messages

AT+CSCB Select Cell Broadcast SMS Messages

Test Command

AT+CSCB=?

Response

+CSCB: (list of supported <mode>s)

OK

Parameter

See Write Command

Read Command

AT+CSCB?

Response

+CSCB: <mode>,<mids>,<dcss>

OK

Parameters

See Write Command

Write Command

AT+CSCB=<mo

de>[,<mids>[,<d

css>]]

Response

TA selects which types of CBMs are to be received by the ME.

Note: The Command writes the parameters in NON-VOLATILE memory.

OK

If error is related to ME functionality:

+CMS ERROR: <err>

Parameters

<mode> 0 Message types specified in <mids> and <dcss> are

accepted

1 Message types specified in <mids> and <dcss> are not

accepted.

<mids> String type (string should be included in quotation marks); all

different possible combinations of CBM message identifiers (refer <mid>)

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(default is empty string); e.g. "0,1,5,320,922". Total 15 different <mids>

values can be supported. <mids> values cannot be written consecutively,

such as "100-200"

<dcss> String type(string should be included in quotation marks); all

different possible combinations of CBM data coding schemes (refer <dcs>)

(default is empty string); e.g. "0,5". Total 5 different <dcss> values can be

supported. <dcss> values cannot be written consecutively, such as "0-5".

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

AT+CSCB=0 will reset <mids> and <dcss> and select no <mids

> and no

<dcss>.

AT+CSCB=1 means all <dcss

> are accepted but this command has no effect

on the list of the <mids> accepted. "0-255" means all <dcss> are accepted.

AT+CSCB=0, <mids> will add the <mids> values in the <mids

> current

list handled by module.

AT+CSCB=0, <dcss> will add the <dcss> values in the <dcss

> current list

handled by module.

If AT+CSCB=0, <mids> is received while the list of <mids

> is full, OK is

returned and new value is not added.

4.2.14 AT+CSDH Show SMS Text Mode Parameters

AT+CSDH Show SMS Text Mode Parameters

Test Command

AT+CSDH=?

Response

+CSDH: (list of supported <show>s)

OK

Parameter

See Write Command

Read Command

AT+CSDH?

Response

+CSDH: <show>

OK

Parameter

See Write Command

Write Command

AT+CSDH=[<sh

ow>]

Response

TA determines whether detailed header information is shown in text mode

result codes.

OK

Parameter

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<show> 0 Do not show header values defined in commands +CSCA

and +CSMP (<sca>, <tosca>, <fo>, <vp>, <pid> and <dcs>) nor <length>,

<toda> or <tooa> in +CMT, +CMGL, +CMGR result codes for

SMS-DELIVERs and SMS-SUBMITs in text mode

1 Show the values in result codes

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

4.2.15 AT+CSMP Set SMS Text Mode Parameters

AT+CSMP Set SMS Text Mode Parameters

Test Command

AT+CSMP=?

Response

+CSMP: (list of supported <fo>s),(list of supported <vp>s),(list of

supported <pid>s),(list of supported <dcs>s)

OK

Parameters

See Write Command

Read Command

AT+CSMP?

Response

+CSMP: <fo>,<vp>,<pid>,<dcs>

OK

Parameters

See Write Command

Write Command

AT+CSMP=[<fo

>[,<vp>,<pid>,<

dcs>]]

Response

TA selects values for additional parameters needed when SM is sent to the

network or placed in a sto

rage when text mode is selected (+CMGF=1). It is

possible to set the validity period starting from when the SM is received by

the SMSC (<vp

> is in range 0... 255) or define the absolute time of the

validity period termination (<vp> is a string).

Note: The Command writes the parameter <fo> in NON-

VOLATILE

memory.

OK

Parameters

<fo> Depending on the command or result code: first octet of GSM

03.40 SMS-DELIVER, SMS-SUBMIT (default 17),

SMS-STATUS-REPORT, or SMS-COMMAND (default 2) in integer

format. SMS status report is supported under text mode if <fo> is set to 49.

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<vp> Depending on SMS-SUBMIT <fo> setting: GSM 03.40

TP-Validity-Period either in integer format (default 167) or in time-string

format (refer <dt>)

<pid> GSM 03.40 TP-Protocol-Identifier in integer format (default 0).

<dcs> GSM 03.38 SMS Data Coding Scheme in Integer format.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

4.2.16 AT+CSMS Select Message Service

AT+CSMS Select Message Service

Test Command

AT+CSMS=?

Response

+CSMS: (list of supported <service>s)

OK

Parameter

See Write Command

Read Command

AT+CSMS?

Response

+CSMS: <service>,<mt>,<mo>,<bm>

OK

Parameters

See Write Command

Write Command

AT+CSMS=<ser

vice>

Response

+CSMS: <mt>,<mo>,<bm>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<service> 0 GSM 03.40 and 03.41 (the syntax of SMS AT commands

is compatible with 3GPP TS 27.005 Phase 2 version 4.7.0; Phase 2+

features which do not require new Command syntax may be supported (e.g.

correct routing of messages with new Phase 2+ data coding schemes))

1 GSM 03.40 and 03.41 (the syntax of SMS AT

commands is compatible with 3GPP TS 27.005 Phase 2+

version; the requirement of <service> setting 1 is

mentioned under corresponding command descriptions)

<mt> Mobile Terminated Messages:

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0 Type not supported

1 Type supported

<mo> Mobile Originated Messages:

0 Type not supported

1 Type supported

<bm> Broadcast Type Messages:

0 Type not supported

1 Type supported

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

3GPP TS 27.005

Note

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5 AT Commands for SIM Application Toolkit

5.1 Overview

Command Description

AT+STKTRS This command is used to send STK terminal response

AT+STKENVS This command is used to send STK envelope command

AT+STKCALL Trigger STK call

AT+STKSMS Trigger STK SMS

AT+STKSS Trigger STK SS

AT+STKUSSD Trigger STK USSD

AT+STKDTMF Trigger STK DTMF

+STKPCI This unsolicited result code is used to indicate proactive command

Indication.

AT+STKMENU Show STK main menu

AT+STKPCIS Switch STK URC string

5.2 Detailed Descriptions of Commands

5.2.1 AT+STKTRS STK Terminal Response

AT+STKTRS STK Terminal Response.

Test Command

AT+STKTRS=?

Response

+STKTRS: <result_length>,<text_length>

OK

Parameter

See Write Command

Read Command

AT+STKTRS?

Response

OK

Write Command

AT+STKTRS=<re

sult>[,<text>]

Response

OK

ERROR

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Parameter

<result> HEX string type --specified in GSM11.14[12.12]

- '00' = Command performed successfully;

- '10' = Proactive SIM session terminated by the user;

-

'11' = Backward move in the proactive SIM session requested by

the user;

…

- '2000' = ME currently unable to process command,

No specific

cause can be given;

- '2001' = ME currently unable to process command,

Screen is

busy;

…

<text> Hex String type

If response to GET INPUT or GET INKEY --

specified in

GSM11.14[12.15]

-text string, the first 2 char is Data coding scheme

If response to SELECT ITEM --specified in GSM11.134[12.10]

-Identifier of item chosen

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

For more detail used, can refer "AT+STKTR" command

5.2.2 AT+STKENVS STK Envelope Command

AT+STKENVS STK Envelope Command

Test Command

AT+STKENVS=?

Response

+STKENVS: <command_length>,<data_length>

OK

Parameter

See Write Command

Read Command

AT+STKENVS?

Response

OK

Parameter

See Write Command

Write Command

AT+STKENVS=<

command>[,<data

Response

OK

ERROR

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>] Parameter

<command> HEX string type --specified in GSM11.14[13.1]

- 'D3' = Menu Selection;

- 'D6' =Event download;

<data> Hex string type

If command is ‘D3’ --specified in GSM11.14[8.2]

-Item identifier of main menu

If command is ‘D6’ --specified in GSM11.14[11]

-event list

- '04' = User activity

- '05' = Idle screen available

- '07' = Language selection

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

For more detail used, can refer "AT+STKENV" command

5.2.3 AT+STKCALL STK call setup

AT+STKCALL STK call setup

Test Command

AT+STKCALL=?

Response

OK

Parameter

See Write Command

Write Command

AT+STKCALL=<

command>

Response

OK

ERROR

Parameter

<command> stk call command

0 Trigger modem to send STK CALLSETUP

4 Trigger modem to send STK CALLSETUP but icon cannot

be displayed

16 Proactive session terminated by user

18 No response from user

32 ME currently unable to process this command

34 User reject setup call

50 Command data not understood by ME

Note: Above are the possible terminal response value needed to be

responded by application. It’s modem’s responsibility to response for other

terminal response value.

Parameter Saving

Mode

NO_SAVE

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Max Response Time

-

Reference

Note

According to spec 11.14, 0x12 ("No response from user") is not a possible

terminal response value for STK CALLSETUP. So we will translate

0x12("No response from user") to 0x20 ("ME currently unable to process

this command").

5.2.4 AT+STKSMS STK SMS delivery

AT+STKSMS STK SMS delivery

Test Command

AT+STKSMS=?

Response

OK

Parameter

See Write Command

Write Command

AT+STKSMS=<co

mmand>

Response

OK

ERROR

Parameter

<command> stk sms command

0 Trigger modem to send STK SMS

4 Trigger modem to send STK SMS but icon cannot be

displayed

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

Above are the possible terminal response value needed to be responded

by

application. It’s modem’s responsibility to response for other

terminal

response value

5.2.5 AT+STKSS STK SS setup

AT+STKSS STK SS setup

Test Command

AT+STKSS=?

Response

OK

Parameter

See Write Command

Write Command

AT+STKSS=<com

mand>

Response

OK

ERROR

Parameter

<command> stk SS command

0 Trigger modem to send STK SS

4 Trigger modem to send STK SS but icon cannot be

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displayed

50 Command data not understood by ME

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

Above are the possible terminal response value needed to be responded

by

application. It’s modem’s responsibility to response for other

terminal

response value.

5.2.6 AT+STKUSSD STK USSD setup

AT+STKUSSD STK USSD setup

Test Command

AT+STKUSSD=?

Response

OK

Parameters

See Write Command

Write Command

AT+STKUSSD=<c

ommand>

Response

OK

ERROR

Parameters

<command> STK SS command

0 Trigger modem to send STK USSD

4 Trigger modem to send STK USSD but icon cannot be

displayed

50 Command data not understood by ME

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

Above are the possible terminal response value needed to be responded

by

application. It’s modem’s responsibility to response for other

terminal

response value.

5.2.7 AT+STKDTMF STK sending DTMF

AT+STKDTMF STK sending DTMF

Test Command

AT+STKDTMF=?

Response

OK

Parameters

See Write Command

Write Command

AT+STKDTMF=<

Response

OK

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command> ERROR

Parameters

<command> STK DTMF command

0 Trigger modem to send STK DTMF

4 Trigger modem to send STK DTMF but icon cannot be

displayed

32 ME currently unable to process command

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

Above are the possible terminal response value needed to be responded

by

application.It’s modem’s responsibility to response for other

terminal

response value.

5.2.8 +STKPCI STK Proactive Command Indication

+STKPCI STK Proactive Command Indication

+STKPCI: <pci_type>[,<proactive_command>,…]

Parameter

<pci_type>

0 The SAT command is handled by TE.

1 The SAT command is handled by ME.

2 No other command (end of session)

DISPLAY TEXT,<Command Qualifier>,<text string>

GET INKEY, <Command Qualifier>,<text string>

GET INPUT, <Command Qualifier>,<text string>,<Min length>,<Max

length>

PLAY TONE,<alpha id>,<tone>,<Time unit>,<Time interval>

SET UP MENU,<the number of item>,<alpha id>

SELECT ITEM, <the number of item>,<alpha id>

ITEM,<index>,<id>,<item string>

SEND SHORT MESSAGE,<alpha id>,<addr>,<sms tpdu>

SEND SS,<alpha id>,<ss string>

SEND USSD,<alpha id>,<ussd string>

SETUP CALL,<alpha id>,<addr>

SET UP IDLE MODE TEXT,<text string>

SEND DTMF,<alpha id>,<dtmf string>.

If <alpha id>= 0, the alpha id is null

If <addr>= 0, the addr is null

Parameter Saving

Mode

NO_SAVE

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Max Response

Time

-

Reference Note

For detail introduction, please refer to SIM800 Series_STK_Application Note.

5.2.9 AT+STKMENU STK Main menu command

AT+STKMENU STK Main menu command

Test Command

AT+STKMENU

=?

Response

OK

Parameters

See Read Command

Read Command

AT+STKMENU

?

Response

[+STKMENU: <index>,<id>,<text>]

[…]

OK

Parameters

<index> The menu’s index, begin 1

<id> The item identifier

<text> The content of item, code by EFADN

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

When stkpci is off, read command response will null.

5.2.10 AT+STKPCIS STK URC switch command

AT+STKPCIS STK URC switch command

Test Command

AT+STKPCIS=?

Response

+STKPCIS: (0-1)

OK

Parameters

See Write Command

Read Command

AT+STKPCIS?

Response

+STKPCIS: <switch>

OK

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Parameters

Write Command

AT+STKPCIS=<

switch>

Response

OK

ERROR

Parameters

<switch> The switch of STK URC

0 The STK URC is off

1 The STK URC is ON

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference Note

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6 AT Commands Special for SIMCom

6.1 Overview

Command Description

AT+SIDET Change the side tone gain level

AT+CPOWD Power off

AT+SPIC Times remained to input SIM PIN/PUK

AT+CMIC Change the microphone gain level

AT+CALA Set alarm time

AT+CALD Delete alarm

AT+CADC Read ADC

AT+CSNS Single numbering scheme

AT+CDSCB Reset cell broadcast

AT+CMOD Configure alternating mode calls

AT+CFGRI Indicate RI when using URC

AT+CLTS Get local timestamp

AT+CLDTMF Local DTMF tone generation

AT+CDRIND CS voice/data call termination indication

AT+CSPN Get service provider name from SIM

AT+CCVM Get and set the voice mail number on the SIM

AT+CBAND Get and set mobile operation band

AT+CHF Configure hands free operation

AT+CHFA Swap the audio channels

AT+CSCLK Configure slow clock

AT+CENG Switch on or off engineering mode

AT+SCLASS0 Store class 0 SMS to SIM when received class 0 SMS

AT+CCID Show ICCID

AT+CMTE Set critical temperature operating mode or query temperature

AT+CMGDA Delete all SMS

AT+STTONE Play SIM toolkit tone

AT+SIMTONE Generate specific tone

AT+CCPD Enable or disable alpha string

AT+CGID Get SIM card group identifier

AT+MORING Show state of mobile originated call

AT+CMGHEX Enable or disable sending non-ascii character SMS

AT+CCODE Configure SMS code mode

AT+CIURC Enable or disable initial URC presentation

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AT+CPSPWD Change PS super password

AT+EXUNSOL Enable or disable proprietary unsolicited indications

AT+CGMSCLASS Change GPRS multislot class

AT+CDEVICE View current flash device type

AT+CCALR Call ready query

AT+GSV Display product identification information

AT+SGPIO Control the GPIO

AT+SPWM Generate the pulse-width-modulation

AT+ECHO Echo cancellation control

AT+CAAS Control auto audio switch

AT+SVR Configure voice coding type for voice calls

AT+GSMBUSY Reject incoming call

AT+CEMNL Set the list of emergency number

AT*CELLLOCK Set the list of ARFCN which needs to be locked

AT+SLEDS Set the timer period of net light

AT+CBUZZERRING Use the buzzer sound as the incoming call ring

AT+CEXTERNTONE Close or open the microphone

AT+CNETLIGHT Close the net light or open it to shining

AT+CWHITELIST Set the white list

AT+CSDT Switch on or off detecting SIM card

AT+CSMINS SIM inserted status reporting

AT+CSGS Netlight indication of GPRS status

AT+CMICBIAS Close or open the MICBIAS

AT+DTAM Set TTS and record play mode in call

AT+SJDR Set jamming detection fuction

AT+CPCMCFG Set PCM parameter

AT+CPCMSYNC Set PCM sync parameter

AT+CANT Antenna detecting

AT+CAGCSET Close or open AGC function

AT+SD2PCM SD and PCM switch function

AT+SKPD Keypad detecting function

AT+SIMTONEX Custom tones

AT+CROAMING Roaming state

AT+CNETSCAN Performing a net survey to show all the cells’ information

AT+CMNRP Dual serial port feature

AT+CEGPRS Switch on or off EDGE

AT+CGPIO Control the GPIO by PIN index

AT+CMEDPLAY Play audio file

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AT+CMEDIAVOL Control the volume when playing audio file

AT+SNDLEVEL Set the sound level of special AT command

AT+ECHARGE Charge control

AT+SIMTIMER Modify the poll interval time requested by SIM card

AT+SPE Speech enhancement control

AT+CCONCINDEX Report concatenated SMS index

AT+SDMODE SD and PCM switch function

AT+SRSPT Control SMS retransmission

AT+CELLIST Perform a net survey to show sll the cells’ information

AT+CLIST Query AT

AT+CBATCHK Set VBAT checking feature ON/OFF

6.2 Detailed Descriptions of Commands

6.2.1 AT+SIDET Change the Side Tone Gain Level

AT+SIDET Change the Side Tone Gain Level

Test Command

AT+SIDET=?

Response

+SIDET: (list of supported <channel>s),(list of supported <gainlevel>s)

OK

Parameters

See Write Command

Read Command

AT+SIDET?

Response

+SIDET: (<channel0>,<gainlevel0>),…, (<channeln>,<gainleveln>)

OK

Parameters

See Write Command

Write Command

AT+SIDET=<ch

annel>,<gainleve

l>

Response

OK

ERROR

Parameters

<channel> 0 Main audio channel

1 Aux audio channel

2 Main audio channel hand free mode

3 Aux audio channel hand free mode

<gainlevel> Int: 0-16

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

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Reference Note

l <gainleveln> value of read command is related to <channel> specific.

l Scope of parameter <channel> is different among SIM800 series

project, please refer to chapter 21 for details.

6.2.2 AT+CPOWD Power off

AT+CPOWD Power Off

Write Command

AT+CPOWD=<n

>

Response

[NORMAL POWER DOWN]

Parameter

<n> 0 Power off urgently (Will not send out NORMAL POWER

DOWN)

1 Normal power off (Will send out NORMAL POWER

DOWN)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

6.2.3 AT+SPIC Times Remained to Input SIM PIN/PUK

AT+SPIC Times Remained to Input SIM PIN/PUK

Execution

Command

AT+SPIC

Response

Times remained to input SIM PIN

+SPIC: <pin1>,<pin2>,<puk1>,<puk2>

OK

Parameters

<pin1> Times remained to input chv1

<pin2> Times remained to input chv2

<puk1> Times remained to input puk1

<puk2> Times remained to input puk2

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

6.2.4 AT+CMIC Change the Microphone Gain Level

AT+CMIC Change the Microphone Gain Level

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Test Command

AT+CMIC=?

Response

+CMIC: (list of supported <channel>s),(list of supported <gainlevel>s)

OK

Parameters

See Write Command

Read Command

AT+CMIC?

Response

+CMIC: (<channel0>,<gainlevel0>),…,(<channeln>,<gainleveln>)

OK

Parameters

See Write Command

Write Command

AT+CMIC=<cha

nnel>,<gainlevel

>

Response

OK

ERROR

Parameters

<channel> 0 Main audio channel

1 Aux audio channel

2 Main audio channel hand free mode

3 Aux audio channel hand free mode

<gainlevel> Int: 0 – 15

0 0dB

1 +1.5dB

2 +3.0 dB

3 +4.5 dB

4 +6.0 dB

5 +7.5 dB

6 +9.0 dB

7 +10.5 dB

8 +12.0 dB

9 +13.5 dB

10 +15.0 dB

11 +16.5 dB

12 +18.0 dB

13 +19.5 dB

14 +21.0 dB

15 +22.5 dB

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

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l <gainleveln> value is related to <channel> specific.

l The default gain level of main audio channel is 10.

l Scope of parameter <channel> is different among SIM800 series

project, please refer to chapter 21 for details.

6.2.5 AT+CALA Set Alarm Time

AT+CALA Set Alarm Time

Test Command

AT+CALA=?

Response

+CALA: ("yy/mm/dd,hh:mm:ss","hh:mm:ss"),(1-5),(0-7)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CALA?

Response

[+CALA: <time>,<n1>[,<recurr>]

[<CR><LF> +CALA: <time>,<n2>[,<recurr>] …]]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CALA=<ti

me>[,<n>[,<rec

urr>]]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

Indicate expired alarm.

ALARM RING

+CALV: <n>

Parameters

<time> A

string parameter(string should be included in quotation marks)

which indicates the time when alarm arrives. The format is

"yy/MM/dd,hh:mm:ss" where characters indicate the last two digits

of year,

month, day, hour, minute, second.

<n> Index of the alarm (range 1 to 5 for now).

<recurr> "0", "1"---"7" String type value indicating day of week for the

alarm in one of the following formats:

"<1..7>[,<1..7>[…]]" – Set a recurrent alarm for one or more

days in the week. The digits 1 to 7 correspond to the days in the

week, Monday (1), …, Sunday (7).

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Example: The string "1,2,3,4,5" may be used to set an alarm for

all weekdays.

"0" – Set a recurrent alarm for all days in the week.

Parameter

Saving Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

If user sets recurr function, the string of <time> should not enter "yy/MM/dd",

for example: set Monday to Friday alarm at the time of 16PM of alarm 2.

AT+CALA="16:00:00",2,1,2,3,4,5

6.2.6 AT+CALD Delete Alarm

AT+CALD Delete Alarm

Test Command

AT+CALD=?

Response

+CALD: (list of supported <n>s)

OK

Parameters

See Write Command

Write Command

AT+CALD=<n>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<n> Integer type value indicating the index of the alarm; default vaule is

manufacturer specific (range from 1 to 5 now).

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

6.2.7 AT+CADC Read ADC

AT+CADC Read ADC

Test Command

AT+CADC=?

Response

+CADC: (list of supported <status>s),(list of supported <value>s)

OK

Parameters

<status> 1 Success

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0 Fail

<value> Integer 0-2800

Read Command

AT+CADC?

Response

+CADC: <status>,<value>

OK

Parameters

See Test Command

Parameter Saving

Mode

NO_SAVE

Max Response

Time

2s

Reference Note

6.2.8 AT+CSNS Single Numbering Scheme

AT+CSNS Single Numbering Scheme

Test Command

AT+CSNS=?

Response

+CSNS: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CSNS?

Response

+CSNS: <mode>

OK

Parameters

See Write Command

Write Command

AT+CSNS=<mo

de>

Response

OK

ERROR

Parameters

<mode>

0 Voice

2 Fax

4 Data

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

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6.2.9 AT+CDSCB Reset Cell Broadcast

AT+CDSCB Reset Cell Broadcast

Execution

Command

AT+CDSCB

Response

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

Please also refer to AT+CSCB.

6.2.10 AT+CMOD Configure Alternating Mode Calls

AT+CMOD Configure Alternating Mode Calls

Test Command

AT+CMOD=?

Response

+CMOD: (0)

OK

Parameters

See Write Command

Read Command

AT+CMOD?

Response

+CMOD: <mode>

OK

Parameters

See Write Command

Write Command

AT+CMOD=[<m

ode>]

Response

OK

ERROR

Parameters

<mode> 0 Only single mode is supported

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

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6.2.11 AT+CFGRI Indicate RI When Using URC

AT+CFGRI Indicate RI When Using URC

Test Command

AT+CFGRI=?

Response

+CFGRI: (0-2)

OK

Parameters

See Write Command

Read Command

AT+CFGRI?

Response

+CFGRI: <status>

OK

Parameters

See Write Command

Write Command

AT+CFGRI=<st

atus>

Response

OK

ERROR

Parameters

<status> 0 Off

1 On(TCPIP, FTP and URC control RI pin)

2 On(only TCPIP control RI pin)

Paramete

r Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference Note

l RI pin can not controll by "AT+CFGRI" command when module has

call service or receiving SMS.

l Default value of parameter <status> is different among SIM800 series

project, please refer to chapter 21 for details.

6.2.12 AT+CLTS Get Local Timestamp

AT+CLTS Get Local Timestamp

Test Command

AT+CLTS=?

Response

+CLTS: "yy/MM/dd,hh:mm:ss+/-zz"

OK

Read Command

AT+CLTS?

Response

+CLTS: <mode>

OK

Write Command Response

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AT+CLTS=<mo

de>

OK

ERROR

Parameters

<mode>

0 Disable

1 Enable

Unsolicited Result Code

When "get local timestamp" function is enabled, the following URC may

be reported if network sends the message to the MS to provide the MS

with subscriber specific information.

1. Refresh network name by network:

*PSNWID: "<mcc>", "<mnc>", "<full network name>", <full

network name CI>, "<short network name>",<short network name

CI>

2. Refresh time and time zone by network:

This is UTC time, the time queried by AT+CCLK command is local

time.

*PSUTTZ: <year>, <month>, <day>, <hour>, <min>, <sec>, "<time

zone>", <dst>

3. Refresh network time zone by network:

+CTZV: "<time zone>"

4. Refresh Network Daylight Saving Time by network:

DST: <dst>

Parameters

<mcc> String type; mobile country code

<mnc> String type; mobile network code

<full network name> String type; name of the network in full length.

<full network name CI> Integer type; indicates whether to add CI.

0 The MS will not add the initial letters of the Country's

Name to the text string.

1 The MS will add the initial letters of the Country's

Name and a separator (e.g. a space) to the text string.

<short network name> String type; abbreviated name of the network

<short network name CI> Integer type; indicates whether to add CI.

0 The MS will not add the initial letters of the Country's

Name to the text string.

1 The MS will add the initial letters of the Country's

Name and a separator (e.g. a space) to the text string.

<year> 4 digits of year (from network)

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<month> Month (from network)

<day> Day (from network)

<hour> Hour (from network)

<min> Minute (from network)

<sec> Second (from network)

<time zone> String type; network time zone. If the network time zone

has been adjusted for Daylight Saving Time, the network shall indicate

this by including the <dst> (Network Daylight Saving Time)

<dst> Network Daylight Saving Time; the content of this

indicates the value that used to adjust the network time zone

0 No adjustment for Daylight Saving Time

1 +1 hour adjustment for Daylight Saving

2 +2 hours adjustment for Daylight Saving Time

others Reserved

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

Support for this Command will be network dependent.

Set AT+CLTS=1, it means user

can receive network time updating

and use AT+CCLK to show current time.

*PSUTTZ may report twice.

6.2.13 AT+CLDTMF Local DTMF Tone Generation

AT+CLDTMF Local DTMF Tone Generation

Test Command

AT+CLDTMF=?

Response

+CLDTMF: (1-100),(0-9,A,B,C,D,E,F,*,#),(10-500)

OK

Write Command

AT+CLDTMF=<

n>,<DTMF

string>[<timeBas

e>]

Response

OK

ERROR

Parameters

<n> A numeric parameter (1-100) which indicates the duration of all

DTMF tones.

<DTMF -string> A string parameter (string should be included in

quotation marks) which has a max length of 20 chars of form <DTMF>,

separated by commas.

<DTMF> A single ASCII chars in the set 0-9, #,*, A-D. In addition,

E and F is supported too. E represents single frequency 1400HZ sound, F

represents single frequency 2300HZ sound.

<timeBase> timeBase to generate DTMF sound.the DTMF on time is

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<n>*<timeBase>, DTMF off time is timeBase,the default value is 100ms.

Execution

Command

AT+CLDTMF

Response

OK

Abort any DTMF tone currently being generated and any DTMF tone

sequence.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

Local DTMF tone can be played in call, play mode is controlled by

AT+DTAM.

6.2.14 AT+CDRIND CS Voice/Data Call Termination Indication

AT+CDRIND CS Voice/Data Call Termination Indication

Test Command

AT+CDRIND=?

Response

+CDRIND: (list of supported <n>s)

OK

Parameter

See Write Command

Read Command

AT+CDRIND?

Response

+CDRIND: <n>

OK

Parameter

See Write Command

Write Command

AT+CDRIND=<

n>

Response

OK

ERROR

Parameter

<n> A numeric parameter to enable an unsolicited event code indicating

whether a CS voice call, CS data has been terminated.

0 Disable

1 Enable

Unsolicited result code

When enabled, an unsolicited result code is returned after the connection

has been terminated

+CDRIND: <type>

Parameter

<type> Connection type

0 CSV connection

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1 CSD connection

2 PPP connection

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

6.2.15 AT+CSPN Get Service Provider Name from SIM

AT+CSPN Get Service Provider Name from SIM

Read Command

AT+CSPN?

Response

+CSPN: <spn>,<display mode>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<spn> String

type(string should be included in quotation

marks); service provider name on SIM

<display mode> 0 Not display PLMN. Already registered on PLMN

1 Display PLMN

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

CME errors occur if SIM is not inserted.

6.2.16 AT+CCVM Get and Set the Voice Mail Number on the SIM

AT+CCVM Get and Set the Voice Mail Number on the SIM

Test Command

AT+CCVM=?

Response

+CCVM: maximum length of field <vm number>, maximum length o

f

field <alpha string>

OK

Parameters

See Write Command

Read Command

AT+CCVM?

Response

If voice mail number is not set:

OK

If voice mail number is set:

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+CCVM: <vm number>[,<alpha string>]

OK

Parameters

See Write Command

Write Command

AT+CCVM=<vm

number>[,<alpha

string>]

Response

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<vm number> String type,The voice mail number to write to the SIM

<alpha string> String type,The alpha-string to write to the SIM

Parame

ter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference Note

6.2.17 AT+CBAND Get and Set Mobile Operation Band

AT+CBAND Get and Set Mobile Operation Band

Test Command

AT+CBAND=?

Response

+CBAND: (list of supported <op_band>s)

OK

Parameter

See Write Command

Read Command

AT+CBAND?

Response

+CBAND: <op_band>[,<ALL_BAND>]

OK

Parameter

See Write Command

Write Command

AT+CBAND=<o

p_band>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<op_band> A string parameter which indicate the operation band.

And the following strings should be included in quotation

marks.

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EGSM_MODE

PGSM_MODE

DCS_MODE

GSM850_MODE

PCS_MODE

EGSM_DCS_MODE

GSM850_PCS_MODE

EGSM_PCS_MODE

ALL_BAND

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

l Radio settings are stored in non-volatile memory.

l The value of parameter <op_band> is different among SIM800 series

project, please refer to chapter 21 for details.

6.2.18 AT+CHF Configure Hands Free Operation

AT+CHF Configure Hands Free Operation

Test Command

AT+CHF=?

Response

+CHF: (list of supported <ind>s),(list of supported <state>s)

OK

Parameters

See Write Command

Read Command

AT+CHF?

Response

+CHF: <ind>,<state>

OK

Parameters

See Write Command

Write Command

AT+CHF=<ind>

[,<state>]

Response

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

+CHF: <state>

Parameters

<ind> 0 Unsolicited result code disabled

1 Unsolicited result code enabled

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(non-volatile)

<state> 0 Main audio channel

1 Aux audio channel

2 Main audio channel hand free mode

3 Aux audio channel hand free mode

4 PCM channel

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

This command is related to the actual module, <state> don’

t support power

off save.

6.2.19 AT+CHFA Swap the Audio Channels

AT+CHFA Swap the Audio Channels

Test Command

AT+CHFA=?

Response

+CHFA: (0=NORMAL_AUDIO, 1=AUX_AUDIO,

2=HANDFREE_AUDIO, 3=AUX_HANDFREE_AUDIO,

4=PCM_AUDIO)

OK

Read Command

AT+CHFA?

Response

+CHFA: <n>

OK

Parameter

See Write Command

Write Command

AT+CHFA=<n>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<n> 0 Main audio channel

1 Aux audio channel

2 Main audio channel hand free mode

3 Aux audio channel hand free mode

4 PCM channel

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

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Reference

Note

l This Command swaps the audio channels among different channels.

l Scope of parameter <channel> is different among SIM800 series

project, please refer to chapter 21 for details.

l Main audio channel hand free mode is the same with main audio

channel; aux audio channel hand free mode is the same with aux audio

channel. Channel 2, 3 is virtual channel.

6.2.20 AT+CSCLK Configure Slow Clock

AT+CSCLK Configure Slow Clock

Test Command

AT+CSCLK=?

Response

+CSCLK: (list of supported <n>s)

OK

Parameter

See Write Command

Read Command

AT+CSCLK?

Response

+CSCLK: <n>

OK

Parameter

See Write Command

Write Command

AT+CSCLK=<n

>

Response

OK

ERROR

Parameter

<n> 0 Disable slow clock, module will not enter sleep mode.

1 Enable slow clock, it is controlled by DTR. When DTR is

high, module can enter sleep mode. When DTR changes to low

level, module can quit sleep mode.

2 Enable slow clock automatically. When there is no interrupt

(on air and hardware such as GPIO interrupt or data in serial

port), module can enter sleep mode. Otherwise, it will quit sleep

mode.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

l There are two caveats when you want to quit sleep mode in mode 2:

1, You should input some characters (at least one) to awake module

2, An interval time of 100ms more is necessary between waking characters

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and following AT commands,otherwise the waking characters will not be

discarded completely,and messy codes will be produced which may leads to

UART baudrate re-adaptation.

l The +CSCLK value can not be reset by AT&F or ATZ command.

6.2.21 AT+CENG Switch on or off Engineering Mode

AT+CENG Switch on or off Engineering Mode

Test Command

AT+CENG=?

Response

TA returns the list of supported modes.

+CENG: (list of supported <mode>s),(list of supported <Ncell>s)

OK

Parameters

See Write Command

Read Command

AT+CENG?

Response

Engineering Mode is designed to allow a field engineer to view and test the

network information received by a handset, when the handset is either in

idle mode or dedicated mode (that is: with a call active). In each mode, the

engineer is able to view network interaction for the "serving cell" (the cell

the handset is currently registered with) or for the neighboring cells.

TA returns the current engineering mode. The network information

including serving cell and neighboring cells are returned. <cell> carry with

them corresponding network interaction.

+CENG: <mode>,<Ncell>

[+CENG:

<cell>,"<bcch>,<rxl>,<rxq>,<mcc>,<mnc>,<bsic>,<cellid>,<rla>,

<txp>,<lac>,<TA>[<dbm>,<c1>,<c2>,<tch>,<ts>,<maio>,<hsn>,<rxq_s

ub>,<rxq_full>,<ch_mod>]"<CR><LF>+CENG:

<cell>,"<bcch>,<rxl>,<bsic>[,<cellid>,]<mcc>,<mnc>,<lac>"…]

OK

if <mode>=3

+CENG: <mode>,<Ncell>

[+CENG:

<cell>,<mcc>,<mnc>,<lac>,<cellid>,<bsic>,<rxl><CR><LF>+CENG:

<cell>,<mcc>,<mnc>,<lac>,<cellid>,<bsic>,<rxl>…]

OK

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if <mode>=4

+CENG: <mode>,<Ncell>

[+CENG:

<cell>,"<bcch>,<rxl>,<rxq>,<mcc>,<mnc>,<bsic>,<cellid>,<rla>,

<txp>,<lac>,<TA>,<dbm>,<c1>,<c2>,<tch>,<ts>,<maio>,<hsn>,<rxq_s

ub>,<rxq_full>,<ch_mod>"<CR><LF>+CENG:

<cell>,"<bcch>,<rxl>,<bsic>,<cellid>,<mcc>,<mnc>,<lac>,<c1>,<c2>"

…]

OK

Parameters

See Write Command

Write Command

AT+CENG=<mo

de>[,<Ncell>]

Response

Switch on or off engineering mode. It will report

+CENG: (network

information) automatically if <mode>=2.

OK

ERROR

Parameters

<mode> 0 Switch off engineering mode

1 Switch on engineering mode

2 Switch on engineering mode, and activate the

URC report of network information

3 Switch on engineering mode, with limited network

information

4 Switch on engineering mode, with extern information

<Ncell> 0 Un-display neighbor cell ID

1 Display neighbor cell ID

If <mode> = 3, ignore this parameter.

<cell> 0 The serving cell

1-6 The index of the neighboring cell

<arfcn> Absolute radio frequency channel number, in decimal format

<bcch> ARFCN(Absolute radio frequency channel number) of

BCCH carrier, in decimal format

<rxl> Receive level, in decimal format

<rxq> Receive quality, in decimal format

<mcc> Mobile country code, in decimal format

<mnc> Mobile network code, in decimal format

<bsic> Base station identity code, in decimal format

<cellid> Cell id, in hexadecimal format

<lac> Location area code, in hexadecimal format

<rla> Receive level access minimum, in decimal format

<txp> Transmit power maximum CCCH, in decimal format

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<TA> Timing Advance, in decimal format

<dbm> Receiving level in dBm

<c1> C1 value

<c2> C2 value

<tch> ARFCN of the TCH carrier, in decimal format

<ts> Timeslot number

<maio> MAIO value

<hsn> HSN value

<rxq_sub> Receiving quality (sub), range is 0 - 7

<rxq_full> Receiving quality (full), range is 0 – 7

<ch_mod> Speech channel type, in string format

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l Engineering mode can been switch on and taken effect after excuting

"AT+CFUN=1".

l Engineering mode only query one SIM card information.

l <lac> and <cellid> are in hex, <ch_mod> is string, and others are in

DEC.

l If network supports frequency hopping, then <tch> is invalid, value is

0.

l Under non-dedicated mode:

parameters are invalid, shown in "x".

l Under dedicated mode, <c1> and<c2> in service cell are invalid, either

all neighbor cell parameters.

l Parameter <rssi> value of "AT+CSQ" is half of <rxl>. The sum of

<dbm> and <rxl> is 113. That is to say, <rssi> = <rxl>/2 and

<dbm>=113-<rxl>.

6.2.22 AT+SCLASS0 Store Class 0 SMS to SIM When Received Class 0 SMS

AT+SCLASS0 Store Class 0 SMS to SIM When Module Received Class 0 SMS

Test Command

AT+SCLASS0=?

Response

+SCLASS0: (0, 1)

OK

Parameters

See Write Command

Read Command

AT+SCLASS0?

Response

+SCLASS0: <mode>

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OK

Parameters

See Write Command

Write Command

AT+SCLASS0=<

mode>

Response

OK

ERROR

Parameters

<mode>

0 Disable to store Class 0 SMS to SIM when module receives

Class 0 SMS

1 Enable to store Class 0 SMS to SIM when module receives

Class 0 SMS

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

6.2.23 AT+CCID Show ICCID

AT+CCID Show ICCID

Test Command

AT+CCID=?

Response

OK

Execution

Command

AT+CCID

Response

Ccid data [ex. 898600810906F8048812]

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

2s

Reference

Note

6.2.24 AT+CMTE Set Critical Temperature Operating Mode or Query Temperature

AT+CMTE Set Critical Temperature Operating Mode or Query Temperature

Read Command

AT+CMTE?

Response

+CMTE: <mode>,<Temperature>

OK

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Parameters

See Write Command

Write Command

AT+CMTE=<mo

de>

Response

OK

ERROR

Parameters

<mode>

0 Disable temperature detection

1 Enable temperature detection

<Temperature> range from -40.00 to 85.00

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

2s

Reference Note

l When temperature is extremely high or low, product will power off.

l URCs indicating the alert level "1" or "-1" are intended to enable the

user to take appropriate precautions, such as protecting the module

from exposure to extreme conditions, or saving or backing up data etc.

Level "2" or "-2" URCs are followed by immediate shutdown.

6.2.25 AT+CMGDA Delete All SMS

AT+CMGDA Delete All SMS

Test Command

AT+CMGDA=?

Response

+CMGDA: (list of supported <type>s)

OK

+CMS ERROR: <err>

Parameter

See Write Command

Write Command

AT+CMGDA=<t

ype>

Response

OK

ERROR

+CMS ERROR: <err>

Parameter

<type>

1) If text mode:

"DEL READ" Delete all read messages

"DEL UNREAD" Delete all unread messages

"DEL SENT" Delete all sent SMS

"DEL UNSENT" Delete all unsent SMS

"DEL INBOX" Delete all received SMS

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"DEL ALL" Delete all SMS

2) If PDU mode:

1 Delete all read messages

2 Delete all unread messages

3 Delete all sent SMS

4 Delete all unsent SMS

5 Delete all received SMS

6 Delete all SMS

Parameter Saving

Mode

NO_SAVE

Max Response

Time

5s（delete 1 message）

25s（delete 50 messages）

25s（delete 150 messages）

Reference Note

6.2.26 AT+STTONE Play SIM Toolkit Tone

AT+STTONE Play SIM Toolkit Tone

Test Command

AT+STTONE=?

Response

+STTONE: (list of supported <mode>s),(list of supported <tone>s),(

list of

supported <duration>s)

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+STTONE=<

mode>,<tone>,<

duration>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

The playing is stopped or completed.

+STTONE: 0

Parameters

<mode> 0 Stop playing tone

1 Start playing tone

<tone> Numeric type

1 Dial Tone

2 Called Subscriber Busy

3 Congestion

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4 Radio Path Acknowledge

5 Radio Path Not Available / Call Dropped

6 Error / Special information

7 Call Waiting Tone

8 Ringing Tone

16 General Beep

17 Positive Acknowledgement Tone

18 Negative Acknowledgement or Error Tone

19 Indian Dial Tone

20 American Dial Tone

<duration> Numeric type, in milliseconds.

Max requested value = 255*60*1000 = 15300000ms

(supported range = 10-15300000)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

6.2.27 AT+SIMTONE Generate Specifically Tone

AT+SIMTONE Generate Specifically Tone

Test Command

AT+SIMTONE=

?

Response

+SIMTONE: (0,1),(20-20000),(200-25500),(0,100-25500),(10-500000)

OK

Parameters

See Write Command

Write Command

AT+SIMTONE=

<mode>,<freque

ncy>,<periodOn

>,<periodOff>[,<

duration>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

The playing is stopped or completed.

+SIMTONE: 0

Parameters

<mode> 0 Stop playing tone

1 Start playing tone

<frequency> The frequency of tone to be generated

<periodOn> The period of generating tone, must be multiple of 100

<periodOff> The period of stopping tone, must be multiple of 100

<duration> Duration of tones in milliseconds

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Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

6.2.28 AT+CCPD Enable or Disable Alpha String

AT+CCPD Enable or Disable Alpha String

Test Command

AT+CCPD=?

Response

+CCPD: (0,1)

OK

Parameter

See Write Command

Read Command

AT+CCPD?

Response

+CCPD: <mode>

OK

Parameter

See Write Command

Write Command

AT+CCPD=<mo

de>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<mode>

0 Disable to present alpha string

1 Enable to present alpha string

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

6.2.29 AT+CGID Get SIM Card Group Identifier

AT+CGID Get SIM Card Group Identifier

Execution

Command

AT+CGID

Response

+GID: <gid1>,<gid2>

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OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<gid1> Integer type of SIM card group identifier 1

<gid2> Integer type of SIM card group identifier 2

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

If the SIM supports GID files, the GID values will be retuned. Otherwise

0xff is retuned.

6.2.30 AT+MORING Show State of Mobile Originated Call

AT+MORING Show State of Mobile Originated Call

Test Command

AT+MORING=?

Response

+MORING: (0,1)

OK

Parameter

See Write Command

Read Command

AT+MORING?

Response

+MORING: <mode>

OK

Parameter

See Write Command

Write Command

AT+MORING=<

mode>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<mode> 0 Not show call state of mobile originated call

1 Show call state of mobile originated call. After the call

number is dialed, the URC strings of MO RING will be sent

if another call is alerted and the URC strings of MO

CONNECTED will be sent if the call is established.

Unsolicited Result Code

MO RING

The call is alerted.

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MO CONNECTED

The call is established.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference Note

6.2.31 AT+CMGHEX Enable or Disable Sending Non-ASCII Character SMS

AT+CMGHEX Enable or Disable Sending Non-ASCII Character SMS

Test Command

AT+CMGHEX=

?

Response

+CMGHEX: (list of supported <mode>s)

OK

Parameter

See Write Command

Read Command

AT+CMGHEX?

Response

+CMGHEX: <mode>

OK

Parameter

See Write Command

Write Command

AT+CMGHEX=

<mode>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<mode> 0 Send SMS in ordinary way

1 Enable to send SMS varying from 0x00 to 0x7f except

0x1a and 0x1b under text mode and GSM character set

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

Only be available in TEXT mode and AT+CSCS="GSM".

6.2.32 AT+CCODE Configure SMS Code Mode

AT+CCODE Configure SMS Code Mode

Test Command Response

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AT+CCODE=? +CCODE: (0,1)

OK

Parameter

See Write Command

Read Command

AT+CCODE?

Response

+CCODE:<mode>

OK

Parameter

See Write Command

Write Command

AT+CCODE=<

mode>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<mode> 0 Code mode compatible with NOKIA

1 Code mode compatible with SIEMENS

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

6.2.33 AT+CIURC Enable or Disable Initial URC Presentation

AT+CIURC Enable or Disable Initial URC Presentation

Test Command

AT+CIURC=?

Response

+CIURC: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CIURC?

Response

+CIURC:<mode>

OK

Parameters

See Write Command

Write Command

AT+CIURC=<m

ode>

Response

OK

If error is related to ME functionality:

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+CME ERROR: <err>

Parameters

<mode> 0 Disable URC presentation.

1 Enable URC presentation

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

When module is powered on and initialization procedure is over.

URC "Call Ready" will be presented if <mode> is 1.

6.2.34 AT+CPSPWD Change PS Super Password

AT+CPSPWD Change PS Super Password

Write Command

AT+CPSPWD=<

oldpwd>,<newp

wd>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<oldpwd> String type(string should be included in quotation marks).

Old password and length should be 8.

<newpwd> String type(string should be included in quotation marks).

New password and length should be 8.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l Default value of <oldpwd> is "12345678".

l If module is locked to a specific SIM card through AT+CLCK and

password lost or SIM state is PH-SIM PUK, user can use the super

password to unlock it.

l It is not supported temporarily.

6.2.35 AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications

AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications

Test Command

AT+EXUNSOL=

?

Response

+EXUNSOL: (list of supported <exunsol>s)

OK

Parameters

See Write Command

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Write Command

AT+EXUNSOL=

<exunsol>,<mod

e>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<exunsol> String type(string should be included in quotation marks).

values are currently reserved by the present document

"SQ" Signal Quality Report

Displays signal strength and channel bit error rate (similar to

AT+CSQ) in form +CSQN: <rssi>,<ber>when values change.

<mode>

0 Disable

1 Enable

2 Query

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

6.2.36 AT+CGMSCLASS Change GPRS Multislot Class

AT+CGMSCLASS Change GPRS Multislot Class

Test Command

AT+CGMSCLA

SS=?

Response

MULTISLOT CLASS: (2,4,8,9,10,12)

OK

Parameter

See Write Command

Read Command

AT+CGMSCLA

SS?

Response

MULTISLOT CLASS: <class>

OK

Parameter

See Write Command

Write Command

AT+CGMSCLA

SS=<class>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<class> GPRS multi-slot class

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Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

6.2.37 AT+CDEVICE View Current Flash Device Type

AT+CDEVICE View Current Flash Device Type

Read Command

AT+CDEVICE?

Response

Device Name: Current flash device type

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

V.25ter

Note

6.2.38 AT+CCALR Call Ready Query

AT+CCALR Call Ready Query

Test Command

AT+CCALR=?

Response

+CCALR: (list of supported <mode>s)

OK

Parameter

<mode> A numeric parameter which indicates whether the module

is ready for phone call.

0 Module is not ready for phone call

1 Module is ready for phone call

Read Command

AT+CCALR?

Response

ME returns the status of result code presentation and an integer <n>

which shows whether the module is currently ready for phone call.

+CCALR: <mode>

OK

Parameter

See Test Command

Parameter Saving

Mode

NO_SAVE

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Max Response

Time

-

Reference

Note

6.2.39 AT+GSV Display Product Identification Information

AT+GSV Display Product Identification Information

Execution

Command

AT+GSV

Response

TA returns product information text

Example:

SIMCOM_Ltd

SIMCOM_SIM800H

Revision: 1308B01SIM800H32

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

6.2.40 AT+SGPIO Control the GPIO

AT+SGPIO Control the GPIO

Test Command

AT+SGPIO=?

Response

+SGPIO: (0-1),(1-7),(0-1),(0-1)

OK

Parameters

See Write Command

Write Command

AT+SGPIO=<ope

ration>,<GPIO>,

<function>,<level

>

Response

OK

ERROR

Parameters

0 Set the GPIO function including the GPIO output.

1 Read the GPIO level. Please note that only when the gpio is

set as input, user can use parameter 1 to read the GPIO level, otherwise the

module will return "ERROR".

<GPIO> The GPIO you want to be set. (

It has relations with the hardware,

please refer to the hardware manual)

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<function> Only when <operation> is set to 0, this option takes effect.

0 Set the GPIO to input.

1 Set the GPIO to output

<level> 0 Set the GPIO low level

1 Set the GPIO high level

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

Scope of parameter <GPIO>

is different among SIM800 series project,

please refer to chapter 21 for details.

6.2.41 AT+SPWM Generate the Pulse-Width-Modulation

AT+SPWM Generate the Pulse-Width-Modulation

Test Command

AT+SPWM=?

Response

+SPWM: (list of supported <index>s),(list of supported <freq>s),(list of

supported <level>s)

OK

Parameters

See Write Command

Write Command

AT+SPWM=<in

dex>,<freq>,<lev

el>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<index> Integer type: the index number of PWM port, which value is

0-2; Current only support one channel,whether 0 or 1 or 2,the PWM port is

the same.

0 For buzzer (according to the hardware support or not).

1 Corresponding to PWM_OUT0 in the hardware circuit

2 Corresponding to PWM_OUT1 in the hardware circuit

<freq> The range of <freq> is 0-100000, the output frequency equals

to CLK/(PWM_CNT+1),where PWM_CNT=CLK/ period-1.

<level> Duty ratio = PWM_THRES/( PWM_CNT+1)

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference Note

The PWM clock source is 13MHz, the equation of the final frequency is:

frequency = CLK/(PWM_CNT+1), where PWM_CNT = CLK/freq – 1.

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However, the equation can not be simplified. PWM_THRES should be less

than the PWM_CNT.

If freq euals 0, the output of PWM is in low state.

6.2.42 AT+ECHO Echo Cancellation Control

AT+ECHO Echo Cancellation Control

Test Command

AT+ECHO=?

Response

+ECHO: (0,1),(0-65535),(0-65535),(0-65535),(0-65535),(0,1)

OK

Parameters

See Write Command

Read Command

AT+ECHO?

Response

+ECHO: (<mic0>,<nlp0>, <aec0>,<nr0>, <ns0>),(<micn>,<nlpn>,

<aecn>,<nrn>, <nsn>)

OK

Parameters

See Write Command

Write Command

AT+ECHO=<mi

c>,<nlp>,<aec>,<

nr>,<ns>[,<state

>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mic> Audio channel

0 Main audio handset channel

1 Main audio handfree channel

<nlp> Nonlinear processing remove residual echo and background

noise

<aec> Acoustic echo cancellation

<nr> Noise reduction

<ns> Noise suppression

<state> Enable or disable to close echo algorithm

0 Echo algorithm be closed

1 Echo algorithm be actived

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

For this command, please refer to actual model.

The default state the echo echo algorithm be actived,

and the read command

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is not displayed.

6.2.43 AT+CAAS Control Auto Audio Switch

AT+CAAS Control Auto Audio Switch

Test Command

AT+CAAS=?

Response

+CAAS: (0-2)

OK

Parameter

See Write Command

Read Command

AT+CAAS?

Response

+CAAS: <mode>

OK

Parameter

See Write Command

Write Command

AT+CAAS=<mo

de>

Response

This parameter setting determines

whether or not the audio channel will be

switched automatically to the corresponding channel in case of headset

attaching or detaching.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<mode>

0 Disable automatic audio channel switch function, the headset

HOOK function is disabled;

1 Enable automatic audio channel switch function, the headset

HOOK function is enabled;

2 Disable automatic audio channel switch function, the headset

HOOK function is enabled.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

For this command, please refer to actual model.

The headset detection is still worked when <mode> is set to 0.

6.2.44 AT+SVR Configure Voice Coding Type for Voice Calls

AT+SVR Configure Voice Coding Type for Voice Calls

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Test Command

AT+SVR=?

Response

+SVR: (list of supported <voice_rate_coding>s)

OK

Parameter

See Write Command

Read Command

AT+SVR?

Response

+SVR: <voice_rate_coding>

OK

Parameter

See Write Command

Write Command

AT+SVR=<voice

_rate_coding>

Response

OK

If error is related to ME functionality:

+CME ERROR: <error>

Parameter

<voice_rate_coding> A number parameter which indicate the voice

coding type.

0 FR

1 EFR/FR

2 HR/FR

3 FR/HR

4 HR/EFR

5 EFR/HR

6 AMR-FR/EFR,AMR-HR

7 AMR-FR/EFR,AMR-HR/HR

8 AMR-HR/HR/AMR-FR/EFR

9 AMR-HR/AMR-FR/EFR

10 AMR-HR/AMR-FR/FR

11 AMR-HR/HR/AMR-FR

12 AMR-FR/AMR-HR

13 AMR-FR/FR/AMR-HR

14 AMR-FR/FR/AMR-HR/HR

15 AMR-FR/EFR/FR/AMR-HR/HR

16 AMR-HR/AMR-FR/EFR/FR/HR

17 AMR-FR/AMR-HR/EFR/FR/HR

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

The parameter of AT+SVR is stored in non-volatile memory.

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6.2.45 AT+GSMBUSY Reject Incoming Call

AT+GSMBUSY Reject Incoming Call

Test Command

AT+GSMBUSY=

?

Response

+GSMBUSY: (0,1,2)

OK

Parameter

See Write Command

Read Command

AT+GSMBUSY?

Response

+GSMBUSY: <mode>

OK

Parameter

See Write Command

Write Command

AT+GSMBUSY=

<mode>

Response

OK

If error is related to ME functionality:

+CME ERROR: <error>

Parameter

<mode> 0 Enable incoming call

1 Forbid all incoming calls

2 Forbid incoming voice calls but enable CSD calls

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

The parameter is not saved if the module power down.

6.2.46 AT+CEMNL Set the List of Emergency Number

AT+CEMNL Set the List of Emergency Number

Test Command

AT+CEMNL=?

Response

+CEMNL: (0-1),(1-11),("0"-"999")…

OK

Parameter

See Write Command

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Read Command

AT+CEMNL?

Response

+CEMNL: <mode>[,<amount>,<emergency numbers>]

OK

Parameter

See Write Command

Write Command

AT+CEMNL=<

mode>[,<amount

>,<emergency

numbers>]

Response

OK

ERROR

Parameter

<mode> 0 Disable

1 Enable

<amount> Amount of emergency number to be set.

Up to 11 emergency

numbers supported

Emergency numbers to be set by user which range is 0-999

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

6.2.47 AT*CELLLOCK Set the List of ARFCN Which Needs to Be Locked

AT*CELLLOCK Set the List of ARFCN Which Needs to Be Locked

Test Command

AT*CELLLOC

K=?

Response

*CELLLOCK: (list of supported <mode>s)[,(

list of supported

<amount>s),(list of supported <locked arfcn list>s)[, (

list of supported

<locked arfcn list>s)[, (list of supported <locked arfcn list>s)]]]

OK

Parameter

See Write Command

Read Command

AT*CELLLOC

K?

Response

*CELLLOCK: <mode>[,<amount>,<locked arfcn list>[,<locked arfcn

list>…]]

OK

Parameter

See Write Command

Write Command

AT*CELLLOC

Response

OK

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K=<mode>[,<am

ount>,<locked

arfcn

list>[,<locked

arfcn list>…]]

ERROR

Parameter

<mode>

0 Disable

1 Enable

<amout>

Amount of arfcn to be set. Up to 3 arfcn supported.

Arfcn needs to be locked by user.

Scope: (0-124), (128-251), (512-885) or (975-1023).

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

6.2.48 AT+SLEDS Set the Timer Period of Net Light

AT+SLEDS Set the Timer Period of Net Light

Test Command

AT+SLEDS=?

Response

+SLEDS: (1-3),(0,40-65535),(0,40-65535)

OK

Parameters

See Write Command

Read Command

AT+SLEDS?

Response

+SLEDS: <mode>,<timer_on>,<timer_off>

OK

Parameters

See Write Command

Write Command

AT+SLEDS=<m

ode>,<timer_on>

Response

OK

ERROR

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,<timer_off> Parameters

<mode>

1 Set the timer period of net light while SIM800 series

does not

register to the network

2 Set the timer period net light while SIM800 series has already

registered to the network

3 Set the timer period net light while SIM800 series is in the state of

PPP communication

<timer_on>

Timer period of "LED ON" in decimal format which range is 0 or

40-65535(ms)

<timer_off>

Timer period of “LED OFF” in decimal format which range is 0 or

40-65535(ms)

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

The default value is :

1,64,800

2,64,3000

3,64,300

6.2.49 AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring

AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring

Read Command

AT+CBUZZER

RING?

Response

+CBUZZERRING: <mode>

OK

Parameter

See Write Command

Write Command

AT+CBUZZER

RING=<mode>

Response

OK

ERROR

Parameter

<mode>

0 Disable the function of using buzzer sound as the incoming call ring

1 Enable the function of using buzzer sound as the incoming call ring

Parameter Saving

Mode

AT&W_SAVE

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Max Response

Time

-

Reference

Note

This buzzer function is depending on the hardware.

6.2.50 AT+CEXTERNTONE Close or Open the Microphone

AT+CEXTERNTONE Close or Open the Microphone

Test Command

AT+CEXTERN

TONE=?

Response

+CEXTERNTONE: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CEXTERN

TONE?

Response

+CEXTERNTONE: <mode>

OK

Parameters

See Write Command

Write Command

AT+CEXTERNT

ONE=<mode>

Response

OK

ERROR

Parameters

<mode>

0 Re-open the microphone

1 Close the microphone

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

6.2.51 AT+CNETLIGHT Close the Net Light or Open It to Shining

AT+CNETLIGHT Close the Net Light or Open It to Shining

Test Command

AT+CNETLIGH

T=?

Response

+CNETLIGHT: (0,1)

OK

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Parameters

See Write Command

Read Command

AT+CNETLIGH

T?

Response

+CNETLIGHT: <mode>

OK

Parameters

See Write Command

Write Command

AT+CNETLIGH

T=<mode>

Response

OK

ERROR

Parameters

<mode>

0 Close the net light

1 Open the net light to shining

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

6.2.52 AT+CWHITELIST Set the White List

AT+CWHITELIST Set the White List

Test Command

AT+CWHITELI

ST=?

Response

+CWHITELIST: (0-3)

OK

Parameter

See Write Command

Read Command

AT+CWHITELI

ST?

Response

+CWHITELIST: <mode>[,<phone number1>,<phone

number2>,…<phone number30>]

OK

Parameters

See Write Command

Write Command

AT+CWHITELI

ST=<mode>[,<in

Response

OK

ERROR

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dex>,<phone

number>]

Parameters

<mode>

0 Disable

1 Enable only call white list

2 Enable only SMS white list

3 Enable call and SMS white list

<index>

The index of phone number, scope: 1-30

Phone number to be set

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

l Parameter mode value is 1, can save white list phone number ,Other

mode value can not save white list phone number.

l White list phone numbers are suitable to call and SMS function.

6.2.53 AT+CSDT Switch on or off Detecting SIM Card

AT+CSDT Switch on or off Detecting SIM Card

Test Command

AT+CSDT=?

Response

+CSDT: (0-1)

OK

Parameters

See Write Command

Read Command

AT+CSDT?

Response

+CSDT: <mode>

OK

Parameters

See Write Command

Write Command

AT+CSDT=<mo

de>

Response

OK

ERROR

Parameters

<mode>

0 Switch off detecting SIM card

1 Switch on detecting SIM card

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Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

l User should select 8-pin SIM card holder to implement SIM card

detection function.

l After plug out simcard, User should wait 2 seconds before plug in SIM

card.

6.2.54 AT+CSMINS SIM Inserted Status Reporting

AT+CSMINS SIM Inserted Status Reporting

Test Command

AT+CSMINS=?

Response

+CSMINS: (list of supported <n>s)

OK

Parameter

See Write Command

Read Command

AT+CSMINS?

Response

+CSMINS: <n>,<SIM inserted>

OK

Parameters

See Write Command

Write Command

AT+CSMINS=<

n>

Response

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

+CSMINS: <n>,<SIM inserted>

Parameters

<n> A numeric parameter to show an unsolicited event code

indicating whether the SIM has been inserted or removed.

0 Disable

1 Enable

<SIM inserted> A numeric parameter which indicates whether SIM

card has been inserted.

0 Not inserted

1 Inserted

Parameter Saving

Mode

AT&W_SAVE

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Max Response

Time

-

Reference

Note

6.2.55 AT+CSGS Netlight Indication of GPRS Status

AT+CSGS Netlight Indication of GPRS Status

Test Command

AT+CSGS=?

Response

+CSGS: (0-2)

OK

Parameters

See Write Command

Read Command

AT+CSGS?

Response

+CSGS: <mode>

OK

Parameters

See Write Command

Write Command

AT+CSGS=<mo

de>

Response

OK

ERROR

Parameters

<mode>

0 Disable

1 Enable, the netlight will be forced to enter into 64ms on/300ms off

blinking state in GPRS data transmission service. Otherwise, the

netlight state is not restricted.

2 Enable, the netlight will blink according to AT+SLEDS in GPRS

data transmission service.

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

6.2.56 AT+CMICBIAS Close or Open the MICBIAS

AT+CMICBIAS Close or Open the MICBIAS

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Test Command

AT+CMICBIAS

=?

Response

+CMICBIAS: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CMICBIAS

?

Response

+CMICBIAS: <mode>

OK

Parameters

See Write Command

Write Command

AT+CMICBIAS

=<mode>

Response

OK

ERROR

Parameters

<mode>

0 Turn off the micbias

1 Turn on the micbias

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

The settting take effect at the current channel only

6.2.57 AT+DTAM Set TTS and RECORD Play Mode in Call

AT+DTAM Set TTS and RECORD Play Mode in Call

Test Command

AT+DTAM=?

Response

+DTAM: (0-2)

OK

Parameters

See Write Command

Read Command

AT+DTAM?

Response

+DTAM: <mode>

OK

Parameters

See Write Command

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Write Command

AT+DTAM=<mo

de>

Response

OK

ERROR

Parameters

<mode> TTS and record play mode

0 Local

1 Remote

2 Local and remote

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command takes effect only in call. TTS and record not in call only play

locally no matter what the mode is. Setting takes effect before TTS or

record play.

6.2.58 AT+SJDR Set Jamming Detection Function

AT+SJDR Set Jamming Detection Funcition

Test Command

AT+SJDR=?

Response

+SJDR: (0,1)

OK

Parameters

See Write Command

Read Command

AT+SJDR?

Response

+SJDR: <status>

or

+SJDR: <status>,<mode>,<var>,<display>,<result>

OK

Parameters

See Write Command

Write Command

AT+SJDR=<status>

,<mode>[,<var>[,<d

isplay>]]

Response

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited result codes supported:

+SJDR: NO JAMMING

or

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+SJDR: JAMMING DETECTED

or

+SJDR: INTERFERENCE DETECTED

Parameters

0 Disable jamming detection

1 Enable jamming detection

<mode>

0 Should inquire status by reading command

1 Only report jamming status via URC from serial port

2 Only report jamming status via the PIN

3 Report jamming status via URC as well as the PIN

<var> The threshold to separate “+SJDR: JAMMING

DETECTED” from “+SJDR: INTERFERENCE

DETECTED” (while the signal strength variance is

higher than <var>, there could be industrial

interferences , and “+SJDR: INTERFERENCE

DETECTED” is reported).

1-255(default value:255)

0 Report jamming status via URC every 3000ms. (only

when <mode> is set to “1” or “3”)

1 Report jamming status via URC when jamming status

changed.(only when <mode> is set to “1” or “3”)

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l When you query jamming detection status after enable jamming

detection mode, you will get the URC of the format below:

+SJDR:1,<mode>,<var>,<display>,<result>

<result>=0, means no jamming.

<result>=1, means jamming is detected.

<result>=2, means industrial interference is detected.

l “+SJDR: INTERFERENCE DETECTED” indicates industrial

interference which signifies unintentional radio link disturbances by

strong industrial radio sources.

l Jamming detection PIN is designed to indicate jamming by

outputting different level. When jamming is detected, the PIN will

output a high level, otherwise, it will output a low level.

l Jamming detection PIN is different among SIM800 series project,

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please refer to chapter 21 for details.

l Jamming detection only can be enabled after network has

registered. Otherwise it will cause network cannot register.

6.2.59 AT+CPCMCFG Set PCM Parameter

AT+CPCMCFG Set PCM Parameter

Test Command

AT+CPCMCFG

=?

Response

+CPCMCFG: (0-1)

OK

Parameters

See Write Command

Read Command

AT+CPCMCFG

?

Response

+CPCMCFG: <format>

OK

Parameters

See Write Command

Write Command

AT+CPCMCFG

=<format>

Response

OK

ERROR

Parameters

<format> 0 MSB

1 LSB

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

Part of the projects supported by this AT command, please refer to chapter

21 for details.

6.2.60 AT+CPCMSYNC Set PCM Sync Parameter

AT+CPCMSYNC Set PCM Sync Parameter

Test Command

AT+CPCMSYN

C=?

Response

+CPCMSYNC: (0-1),(1-8)

OK

Parameters

See Write Command

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Read Command

AT+CPCMSYN

C?

Response

+CPCMSYNC: <sync>, <length>

OK

Parameters

See Write Command

Write Command

AT+CPCMSYN

C=<sync>,<lengt

h>

Response

OK

ERROR

Parameters

<sync> 0 PCM short sync

1 PCM long sync

<length> 1-8 PCM sync length(1-8)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l The <length> is only supported 1 when PCM sync is short sync.

l Part of the projects supported by this AT command, please refer to

chapter 21 for details.

6.2.61 AT+CANT Antenna Detecting

AT+CANT Antenna Detecting

Test Command

AT+CANT=?

Response

+CANT: (list of supported <mode>s),

(list of supported

<UrcEnable>s),(list of supported <timer>s)

OK

+CME ERROR: <err>

Parameters

See Write Command

Read Command

AT+CANT?

Response

+CANT: <mode>, <UrcEnable>, <timer>

OK

+CME ERROR: <err>

Parameters

See Write Command

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Write Command

AT+CANT=<mo

de>,<UrcEnable

>,<timer>

Response

OK

+CANT: <status>

Parameters

<mode> 0

Disable the antenna detecting function

1 Enable the antenna detecting function

<UrcEnable> 0 Disable reporting antenna state by URC

1 Enable reporting antenna state by URC

<timer> 0-3600 Reporting timer in units of seconds, range:

0-3600. Set timer to 0 will close detect, the

recommend value is 10.

<status> 0 Connected normally

1 Connected to GND

2 Connected to other power source

3 Not connected

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

Part of the projects supported by this AT command, please refer to chapter

21 for details.

6.2.62 AT+CAGCSET Close or Open AGC Function

AT+CAGCSET Close or Open AGC Funcion

Test Command

AT+CAGCSET=

?

Response

+CAGCSET: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CAGCSET?

Response

+CAGCSET: <mode>

OK

Parameters

See Write Command

Write Command

AT+CAGCSET=

<mode>

Response

OK

ERROR

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Parameters

<mode>

0 Close AGC function

1 Open the AGC function

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

6.2.63 AT+SD2PCM SD and PCM Switch Function

AT+SD2PCM SD and PCM Switch Function

Test Command

AT+SD2PCM=?

Response

+SD2PCM: (0,1)

OK

Parameters

See Write Command

Read Command

AT+SD2PCM?

Response

+SD2PCM: <mode>

OK

Parameters

See Write Command

Write Command

AT+SD2PCM=<

mode>

Response

OK

ERROR

Parameters

<mode>

0 SD card interface is valid

1 PCM interface is valid

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note:

l If user set <mode> from 1 to 0, user should execute at&w command

to

save this setting, and then reboot the module

by AT command or

pwrkey.

l Part of the projects supported by this AT command,

please refer to

chapter 21 for details.

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6.2.64 AT+SKPD Keypad Detecting Function

AT+SKPD Keypad Detecting Function

Test Command

AT+SKPD=?

Response

+SKPD: (0-1)

OK

Parameters

See Write Command

Read Command

AT+SKPD?

Response

+SKPD: <mode>

OK

Parameters

See Write Command

Write Command

AT+SKPD=<mo

de>

Response

OK

ERROR

If key has pressed or released, The URC report is:

+SKPD: <value>,<event>

Parameters

<mode>

0 Disable Keypad detecting function

1 Enable Keypad detecting function

<value> The value of pressed or released keypad

<event> The status of keypad

0 Key released

1 Key pressed

Parameter Saving

Mode

-

Max Response

Time

-

Reference

Note

Part of the projects supported by this AT command, please refer to chapter

21 for details.

6.2.65 AT+SIMTONEX Custom Tones

AT+SIMTONEX Custom Tones

Test Command

AT+SIMTONEX

=?

Response

+SIMTONEX:

(0,1),(10-500000),(20-20000),(0-20000),(200-25500),(10-25500),(0-4)...

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OK

Parameters

See Write Command

Write Command

AT+SIMTONEX

=<mode>,<durat

ion>,<freq1>,<fr

eq2>,<periodOn

>,<periodOff>,<

nextIndex>[,<fre

q1>,<freq2>,<pe

riodOn>,<period

Off>,<nextIndex

>…]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

The playing is stopped or completed.

+SIMTONEX: 0

Parameters

<mode> 0 Stop playing tone

1 Start playing tone

<duration> Duration of tones in milliseconds

<freq1> The first frequency of tone to be generated

<freq2> The second frequency of tone to be generated

<periodOn> The period of generating tone, must be multiple of 100

<periodOff> The period of stopping tone, must be multiple of 100

<nextIndex> The index of next tone to play

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

l A group of parameters <freq1>, <freq2>, <periodOn>, <periodOff>,

<nextIndex> is used to define a tone. The index is defined from 0 to

4.AT+SIMTONEX supports up to five tone and the tones will play

cyclically according the order specified by <nextIndex>. For example,

with "AT+SIMTONEX=1,10000,800,0,500,10,2,2000,0,500,100,

2600,0,500,10,1,1700,0,500,10,4,2200,0,600,100,0",the order is

800-> 2600->2000->1700->2200->800 and so on.

l This command support play in call, but the <duration> is limited to

10s.

6.2.66 AT+CROAMING Roaming State

AT+CROAMING Roaming State

Execution

Command

AT+CROAMIN

G

Response

+CROAMING: <state>

OK

Parameters

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<state> 0 Home network

1 International network(different mcc)

2 Other network(different mnc but same operator)

Parameter Savin

g

Mode

NO_SAVE

Max Response

Time

-

Reference Note

6.2.67 AT+CNETSCAN Perform a Net Survey to Show All the Cells’ Information

AT+CNETSCAN Perform a Net Survey to Show All the Cells’ Information

Test Command

AT+CNETSCA

N=?

Response

+CNETSCAN: (list of supported <format>s)

OK

Parameters

See Write Command

Read Command

AT+CNETSCA

N?

Response

+CNETSCAN: <format>

OK

Parameters

See Write Command

Write Command

AT+CNETSCA

N=<format>

Response

OK

Parameters

<format> 0 Hide lac and bsic information

1 Show lac and bsic information

Execution

Command

AT+CNETSCA

N

Response

If format’s value is 0:

Operator:"<Network_Operator_name>",MCC:<MCC>,MNC:<MNC>

,Rxlev:<Rxlev>,Cellid:<CellID>,Arfcn:<Arfcn>[<CR><LF>Operator:

"<Network_Operator_name2>",MCC:<MCC2>,MNC:<MNC2>,Rxlev

:<Rxlev2>,Cellid:<CellID2>,Arfcn:<Arfcn2>[…]]

If format’s value is 1:

Operator:"<Network_Operator_name>",MCC:<MCC>,MNC:<MNC>

,Rxlev:<Rxlev>,Cellid:<CellID>,Arfcn:<Arfcn>,Lac:<Lac>,Bsic:<Bsic

>[<CR><LF>Operator:"<Network_Operator_name2>",MCC:<MCC2

>,MNC:<MNC2>,Rxlev:<Rxlev2>,Cellid:<CellID2>,Arfcn:<Arfcn2>,L

ac:<Lac2>,Bsic:<Bsic2>[…]]

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OK

Parameters

<Network_Operator_name> Long format alphanumeric of network

operator.

<MCC> Mobile country code.

<MNC> Mobile network code.

<Rxlev> Recieve level, in decimal format.

<CellID> Cell identifier, in hexadecimal format.

<Arfcn> Absolute radio frequency channel number, in decimal format.

<Lac> Location area code, in hexadecimal format.

<Bsic> Base station identity code, in hexadecimal format.

Parameter Sa

ving

Mode

NO_SAVE

Max Response

Time

45s

Reference Note

6.2.68 AT+CMNRP Dual Serial Port Feature

AT+CMNRP Dual Serial Port Feature

Test Command

AT+CMNRP=?

Response

+CMNRP: (0-1)

OK

Parameters

See Write Command

Read Command

AT+CMNRP?

Response

+CMNRP: <mode>

OK

Parameters

See Write Command

Write Command

AT+CMNRP=<

mode>

Response

OK

ERROR

Parameters

<mode> 0 Disable dual serial port

1 Enable dual serial port

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

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Reference

Note

l Please refer to SIM800 Series_Serial Port_Application Note.doc.

l Part of the projects supported by this AT command, please refer to

chapter 21 for details.

6.2.69 AT+CEGPRS Switch on or off EDGE

AT+CEGPRS Switch on or off EDGE

Test Command

AT+CEGPRS=?

Response

+CEGPRS: (0,1) , (2,4,8,9,10,12)

OK

Parameters

See Write Command

Read Command

AT+CEGPRS?

Response

+CEGPRS: <switch>[,<class>]

OK

Parameters

See Write Command

Write Command

AT+CEGPRS=<

switch>[,<class>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

0 Switch off EDGE

1 Switch on EDGE

<class> EGPRS multi-slot class

Note: If <switch> value is equal to 1, <class> must be input.otherwise

<class> is optional.

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

The module must restart if the EDGE is switched on or off.

6.2.70 AT+CGPIO Control the GPIO by PIN Index

AT+CGPIO Control the GPIO by PIN Index

Test Command

AT+CGPIO=?

Response

+CGPIO: (0-1),( list of supported <pin>s),(0-1),(0-1)

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OK

Parameters

See Write Command

Write Command

AT+CGPIO=<ope

ration>,<pin>,<fu

nction>,<level>

Response

OK

ERROR

Parameters

0 Set the GPIO function including the GPIO output .

1 Read the GPIO level. Please note that only when the gpio is

set as input, user can use parameter 1 to read the GPIO level, otherwise the

module will return "ERROR".

<pin> The PIN index you want to be set. (

It has relations with the

hardware, please refer to the hardware manual)

<function> Only when <operation> is set to 0, this option takes effect.

0 Set the GPIO to input.

1 Set the GPIO to output

<level>

0 Set the GPIO low level

1 Set the GPIO high level

Reference Note

6.2.71 AT+CMEDPLAY Play Audio File

AT+CMEDPLAY Play Audio File

Test Command

AT+CMEDPLA

Y=?

Response

+CMEDPLAY: (0-3)

OK

Parameters

See Write Command

Read Command

AT+CMEDPLA

Y?

Response

+CMEDPLAY: <state>

OK

Parameters

See Write Command

Write Command

AT+CMEDPLA

Y=<mode>

Response

if<mode>=0,2,3, response：

OK

if<mode>=1, start playing

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AT+CMEDPLAY=1,<filepath>,<channel>,<volume>

OK

If error is related to MS functionality, response：

+CME ERROR: <err>

Parameters

<mode> command operation mode

0 Stop playing

1 Start playing

2 Pause playing

3 Resume playing

<filepath> Audio file path and name

<channel> Audio play channel

0 Main channel

1 Aux channel

<volume> Audio play volume,0-100

<state> Audio playing state

0 Idle

1 Playing

2 Paused

Unsolicited result code

+CMEDPLAY: 0 // play over

Parameter Saving

Mode

NO_SAVE

Max Response

Time

Reference

Note

l <mode> 2 and 3 are not supported when playing audio file during call.

l The audio file can not be played duirng incoming call or outgoing call.

l Only support WAV, PCM, AMR and MP3 format.

l Only support WAV format with 8K 16bit and AMR format during call.

6.2.72 AT+CMEDIAVOL Control the Volume when Playing Audio File

AT+CMEDIAVOL Control the Volume when Playing Audio File

Test Command

AT+CMEDIAVO

L=?

Response

+CMEDIAVOL: (0-100)

OK

Parameters

See Write Command

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Write Command

AT+CMEDIAVO

L=<level>

Response

OK

ERROR

Parameters

<level> 0-100 I

nteger type value with manufacturer specific range

(smallest value represents the lowest sound level).

Reference Note

The command takes effect only when playing audio file.

6.2.73 AT+SNDLEVEL Set the Sound Level of Special AT Command

AT+SNDLEVEL Set the Sound Level of Special AT Command

Test Command

AT+SNDLEVEL=

?

Response

+SNDLEVEL: (0-1),(0-100)

OK

Parameters

See Write Command

Read Command

AT+SNDLEVEL?

Response

+SNDLEVEL:(0,<soundlevel0>),(1,<soundlevel1>)

OK

Parameters

See Write Command

Write Command

AT+SNDLEVEL=

<mode>,<soundle

vel>

Response

OK

ERROR

Parameters

<mode> 0 adjust the sound level of STTONE and SIMTONE

1 adjust the sound level of CLDTMF

<soundlevel> 0-100 I

nteger type value with manufacturer specific

range (smallest value represents the lowest sound level).

Reference Note

6.2.74 AT+ECHARGE Charge Control

AT+ECHARGE Charge Control

Test Command

AT+ECHARGE=

?

Response

+ECHARGE: (0-1)

OK

Parameters

See Write Command

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Read Command

AT+ECHARGE?

Response

+ECHARGE: <n>

OK

Parameters

See Write Command

Write Command

AT+ECHARGE=

<n>

Response

OK

ERROR

Parameters

<n>

0 Disable charge

1 Enable charge

Parameter Saving

Mode

AT&W_SAVE

Reference Note

6.2.75 AT+SIMTIMER Modify the Poll Interval Time Requested by SIM Card

AT+SIMTIMER Modify the Poll Interval Time Requested by SIM Card

Test Command

AT+SIMTIMER

=?

Response

+SIMTIMER: (1-26)

OK

Parameters

See Write Command

Read Command

AT+SIMTIMER

?

Response

+SIMTIMER: <time>

OK

Parameters

See Write Command

Write Command

AT+SIMTIMER

=<time>

Response

OK

ERROR

Parameters

<time> 1-26 second

Parameter Saving

Mode

AT&W_SAVE

Max Response -

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Time

Reference

Note

6.2.76 AT+SPE Speech Enhancement Control

AT+SPE Speech Enhancement Control

Test Command

AT+SPE=?

Response

+SPE: (0,1)

OK

Parameters

See Write Command

Read Command

AT+SPE?

Response

+SPE: <n>

OK

Parameters

See Write Command

Write Command

AT+SPE=<n>

Response

OK

ERROR

Parameters

<n>

0 Disable Speech Enhancement

1 Enable Speech Enhancement

Reference Note

6.2.77 AT+CCONCINDEX Report Concatenated SMS Index

AT+CCONCINDEX Report Concatenated SMS Index

Test Command

AT+CCONCIND

EX=?

Response

OK

Execution

Command

AT+CCONCIND

EX

Response

+CCONCINDEX: N,i,j,k,...

OK

where N is the number of segments that form the whole concatenated SMS

i,j,k are the SMS indexes of each SMS segment , 0 if segment has not been

received.

If no concatenated SMS is present on the SIM or ME, only OK result code

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will be returned.

Parameter Saving

Mode

NO_SAVE

Reference Note

6.2.78 AT+SDMODE SD Mode Switch Function

AT+SDMODE SD and PCM Switch Function

Test Command

AT+SDMODE=?

Response

+SDMODE: (0-1)

OK

Parameters

See Write Command

Read Command

AT+SDMODE?

Response

+SDMODE: <mode>

OK

Parameters

See Write Command

Write Command

AT+SDMODE=<

mode>

Response

OK

ERROR

Parameters

<mode>

0 SD card function is invalid

1 SD card function is valid

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note:

l If user set <mode> from 0 to 1, user should execute "AT&W"

command to save this setting, and then reboot the module

by AT

command or pwrkey.

l Part of the project supported by this AT command,

please refer to

chapter 21 for details.

6.2.79 AT+SRSPT Control SMS Retransmission

AT+SRSPT Control SMS Retransmission

Test Command

AT+SRSPT=?

Response

+ SRSPT: (0,1)

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OK

Parameters

See Write Command

Read Command

AT+SRSPT?

Response

+ SRSPT: <n>

OK

Parameters

See Write Command

Write Command

AT+SRSPT=<n>

Response

OK

ERROR

Parameters

<n>

0 Enable SMS retransmission

1 Disable SMS retransmission

Reference Note

6.2.80 AT+CELLIST Perform a Net Survey to Show All the Cells’ Information

AT+CELLIST Perform a Net Survey to Show All the Cells’ Information

Test Command

AT+CELLIST=?

Response

+ CELLIST: (list of supported <mode>s), (list of supported <period>s)

OK

Parameters

See Write Command

Read Command

AT+CELLIST?

Response

+CELLIST: <mode>,<period>

OK

Parameters

See Write Command

Write Command

AT+CELLIST=

<mode>[,<period

>]

Response

OK

Parameters

<mode> 0 Disable scan cell infomation

1 Enable scan cell infomation

<period> 10-7200 Scan period, default value is 30.Unit is second.

Execution Response

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Command

AT+CELLIST

+CELLIST: MCC,MNC,Arfcn,Rxlev,CellID,Lac,Bsic

….

OK

Parameters

<MCC> Mobile country code.

<MNC> Mobile network code.

<Rxlev> Recieve level, in decimal format.

<CellID> Cell identifier, in hexadecimal format.

<Arfcn> Absolute radio frequency channel number, in decimal format.

<Lac> Location area code, in hexadecimal format.

<Bsic> Base station identity code, in hexadecimal format.

Parameter Saving

Mode

NO_SAVE

Reference Note

1. If the CELLIST function is enabled, the module will scan full frequency

in accordance with the set of <period>, it will affect the normal

network registration, so it is recommended to enable the function and

the <period> value is greater than 30 after the network registration.

2. Enable the CELLIST function will increase the flow of the module.

3. The function of CELLIST and CNETSCAN are the same. CNETSCAN

is synchronized to scan cell information, until the scan complete AT

instructions to return to the cell information. CELLIST is an

asynchronous operation, the internal module of the automatic scanning,

the implementation of the AT+CELLIST to return the scan directly out

of the cell information.

4. After Enable the CELLIST function, the module need to wait for a

period of time to read the cell information, this time is generally about

30 seconds.

6.2.81 AT+CLIST Query AT

AT+CLIST Query AT

Test Command

AT+CLIST=?

Response

+CLIST: <module>s

OK

Parameters

See Write Command

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Write Command

AT+CLIST=<mo

dule>

Response

+CLIST:

001: <name>

002: <name>

003: <name>

…

OK

Parameters

<module> My terminal`s module, eg:SAT,NT,CALL_EXT,

NETWORK_EXT,SIMCOM_ALL,PLATFORM.

<name> AT command`s name, eg:CFUN,CREG,CLIST,STKI.

Reference Note

Each row only shows four modules

6.2.82 AT+CBATCHK Set VBAT Checking Feature ON/OFF

AT+CBATCHK Set VBAT Checking Feature ON/OFF

Test Command

AT+CBATCHK

=?

Response

+CBATCHK: (0,1)

OK

Read Command

AT+CBATCHK?

Response

+CBATCHK: <mode>

OK

Parameters

See Write Command

Write Command

AT+CBATCHK

=<mode>

Response

OK

If failed:

+CME ERROR: <err>

Parameters

<mode> 0 Close the function of VBAT checking

1 Open the function of VBAT checking

Parameter Saving

Mode

Max Response

Time

-

Reference

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7 AT Commands for GPRS Support

7.1 Overview of AT Commands for GPRS Support

Command Description

AT+CGATT Attach or detach from GPRS service

AT+CGDCONT Define PDP context

AT+CGQMIN Quality of service profile (minimum acceptable)

AT+CGQREQ Quality of service profile (requested)

AT+CGACT PDP context activate or deactivate

AT+CGDATA Enter data state

AT+CGPADDR Show PDP address

AT+CGCLASS GPRS mobile station class

AT+CGEREP Control unsolicited GPRS event reporting

AT+CGREG Network registration status

AT+CGSMS Select service for MO SMS messages

7.2 Detailed Descriptions of AT Commands for GPRS Support

7.2.1 AT+CGATT Attach or Detach from GPRS Service

AT+CGATT Attach or Detach from GPRS Service

Test Command

AT+CGATT=?

Response

+CGATT: (list of supported <state>s)

OK

Parameters

See Write Command

Read Command

AT+CGATT?

Response

+CGATT: <state>

OK

Parameters

See Write Command

Write Command

AT+CGATT=<st

ate>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<state> Indicates the state of GPRS attachment

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0 Detached

1 Attached

Other values are reserved and will result in an ERROR response to the

Write Command.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds

Reference

Note

7.2.2 AT+CGDCONT Define PDP Context

AT+CGDCONT Define PDP Context

Test Command

AT+CGDCONT

=?

Response

+CGDCONT: (range of supported <cid>s),<PDP_type>,,,(list of

supported<d_comp>s),(list of supported<h_comp>s)

[<CR><LF>+CGDCONT:

(range of supported <cid>s), <PDP_type>,,,(list ofsupported

<d_comp>s),(list of supported <h_comp>s)[...]]

OK

Parameters

See Write Command

Read Command

AT+CGDCONT

?

Response

+CGDCONT:

[<CR><LF>+CGDCONT:

[…]]

OK

Parameters

See Write Command

Write Command

AT+CGDCONT

=<cid>[,<PDP_ty

pe>[,APN>[,<PD

P_addr>[,<d_co

mp>[,<h_comp>]

]]]]

Response

OK

ERROR

Parameters

<cid> (PDP Context Identifier) a numeric parameter which

specifies a particular PDP context definition. The parameter

is local to the TE-MT interface and is used in other PDP

context-related commands. The range of permitted values

(minimum value=1) is returned by the test form of the

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command.

<PDP_type> (Packet Data Protocol type)

IP Internet Protocol (IETF STD 5)

<APN> (Access Point Name) A string parameter (string should be

included in quotation marks) which is a logical name that

is used to select the GGSN or the external packet data

network. If the value is null or omitted, then the

subscription value will be requested.The default value is

NULL.

<PDP_addr> A string parameter (IP address). Format:

"<n>.<n>.<n>.<n>" where <n>=0..255

If the value is null or equals 0.0.0.0 a dynamic address will

be requested. The allocated address may be read using the

+CGPADDR command

<d_comp> A numeric parameter that controls PDP data compression

0 –PDP data compression off (default if value is omitted)

<h_comp> A numeric parameter that controls PDP data compression

0 –PDP header compression off (default if value is omitted)

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

7.2.3 AT+CGQMIN Quality of Service Profile (Minimum Acceptable)

AT+CGQMIN Quality of Service Profile (Minimum Acceptable)

Test Command

AT+CGQMIN=?

Response

+CGQMIN: <PDP_type>,(list of supported <precedence>s),(

list of

supported <delay>s),(list of supported <reliability>s),(

list of supported

<peak>s),(list of supported <mean>s)

[<CR><LF>+CGQMIN: <PDP_type>,(list of supported <precedence>

s),(list of supported <delay>s),(list of supported <reliability>s),(

list of

supported <peak>s),(list of supported <mean>s)

[…]]

OK

Parameters

See Write Command

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Read Command

AT+CGQMIN?

Response

+CGQMIN: <cid>,<precedence>,<delay>,>reliability>,<peak>,<mean>

[<CR><LF>+CGQMIN:

[…]]

OK

Parameters

See Write Command

Write Command

AT+CGQMIN=<

cid>[,<precedenc

e>[,<delay>[,<rel

iability>[,<peak>

[,<mean>]]]]]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<cid>

1..3 A numeric parameter which specifies a particular

PDP context definition (see +CGDCONT command)

0 QOS precedence class subscribed value

1..3 QOS precedence class

<delay>

0 QOS delay class subscribed value

1..4 QOS delay class subscribed

0 QOS reliability class subscribed value

1..5 QOS reliability class.

<peak>

0 QOS peak throughput class subscribed value

1..9 QOS peak throughput class

<mean>

0 QOS mean throughput class subscribed value

1..18 QOS mean throughput class

31 QOS mean throughput class best effort

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

7.2.4 AT+CGQREQ Quality of Service Profile (Requested)

AT+CGQREQ Quality of Service Profile (Requested)

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Test Command

AT+CGQREQ=?

Response

+CGQREQ: <PDP_type>,(list of supported <precedence>s),(

list of

supported <delay>s),(list of supported <reliability>s),<list of supported

<peak>s),(list of supported <mean>s)

[<CR><LF>+CGQREQ: <PDP_type>,(list of supported

s),(list of supported <delay>s),(list of supported <reliability>s),(

list of

supported <peak>s),(list of supported <mean>s)

[…]]

OK

Parameters

See Write Command

Read Command

AT+CGQREQ?

Response

+CGQREQ: <cid>,<precedence>,<delay>,>reliability>,<peak>,<mean>

[<CR><LF>+CGQREQ:

[…]]

OK

Parameters

See Write Command

Write Command

AT+CGQREQ=c

id>[,<precedence

>[,<delay>[,<reli

ability>[,<peak>[

,<mean>]]]]]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<cid> A numeric parameter which specifies a particular PDP

context definition (see +CGDCONT Command)

The following parameter are defined in GSM 03.60

<precedence> A numeric parameter which specifies the precedence class

0 QOS precedence class subscribed value

1..3 QOS precedence class

<delay> A numeric parameter which specifies the delay class

0 QOS delay class subscribed value

1..4 QOS delay class

<reliability> A numeric parameter which specifies the reliability class

0 QOS reliability class subscribed value

1..5 QOS reliability class; default value: 3

<peak> A numeric parameter which specifies the peak throughput

class

0 QOS peak throughput class subscribed value

1..9 QOS peak throughput class

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<mean> A numeric parameter which specifies the mean throughput

class

0 QOS mean throughput class subscribed value

1..18 QOS mean throughput class

31 QOS mean throughput class best effort

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

7.2.5 AT+CGACT PDP Context Activate or Deactivate

AT+CGACT PDP Context Activate or Deactivate

Test Command

AT+CGACT=?

Response

+CGACT: (list of supported <state>s)

OK

Parameters

See Write Command

Read Command

AT+CGACT?

Response

+CGACT: <cid>,<state>[<CR><LF>+CGACT:<cid>,<state>…]

OK

Parameters

See Write Command

Write Command

AT+CGACT=<st

ate>[,<cid>]

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<state> Indicates the state of PDP context activation

0 Deactivated

1 Activated

Other values are reserved and will result in an ERROR

response to the Write Command.

<cid> A numeric parameter which specifies a particular PDP context

definition (see +CGDCONT Command). If the <cid> is

omitted, it only affects the first cid.

Parameter Saving

Mode

NO_SAVE

Max Response 150 seconds

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Time

Reference

Note

l This command is used to test PDPs with network simulators.

Successful activation of PDP on real network is not guaranteed.

l Refer to AT+CGDATA clarification for more information.

7.2.6 AT+CGDATA Enter Data State

AT+CGDATA Enter Data State

Test Command

AT+CGDATA=?

Response

+CGDATA: list of supported <L2P>s

OK

Parameter

See Write Command

Write Command

AT+CGDATA=<

L2P>[,<cid>]

Response

CONNECT

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<L2P> A string parameter (string should be included in quotation

marks) that indicates the layer 2 protocol to be

used between the

TE and MT:

"PPP" Point to Point protocol for a PDP such as IP

Other values are not supported and will result in an ERROR

response to the execution Command.

<cid> A numeric parameter which specifies a particular PDP context

definition (see +CGDCONT Command)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

7.2.7 AT+CGPADDR Show PDP Address

AT+CGPADDR Show PDP Address

Test Command

AT+CGPADDR=

?

Response

+CGPADDR: (list of defined <cid>s)

OK

Parameters

See Write Command

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Write Command

AT+CGPADDR=

<cid>

Response

+CGPADDR: <cid>,<PDP_addr>

[<CR><LF>+CGPADDR: <cid>,<PDP_addr>[…]]

OK

ERROR

Parameters

<cid> A numeric parameter which specifies a particular PDP context

definition (see +CGDCONT Command)

<PDP_addr> String type, IP address

Format: "<n>.<n>.<n>.<n>" where <n>=0..255

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

Write command returns address provided by the network if a connection has

been established.

7.2.8 AT+CGCLASS GPRS Mobile Station Class

AT+CGCLASS GPRS Mobile Station Class

Test Command

AT+CGCLASS=

?

Response

+CGCLASS: (list of supported <class>s)

OK

Parameter

See Write Command

Read Command

AT+CGCLASS?

Response

+CGCLASS: <class>

OK

Parameter

See Write Command

Write Command

AT+CGCLASS=

<class>

Response

OK

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<class> A string parameter(string should be included in quotation

marks) which indicates the GPRS mobile class (in

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descending order of functionality)

B Class-B mode of operation (A/Gb mode), (not

applicable in Iu mode) MT would operate PS and CS

services but not simultaneously

CG Class C in GPRS only mode

CC Class C in circuit switched only mode (lowest)

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

It only supports Class B, CG and CC.

7.2.9 AT+CGEREP Control Unsolicited GPRS Event Reporting

AT+CGEREP Control Unsolicited GPRS Event Reporting

Test Command

AT+CGEREP=?

Response

+CGEREP: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CGEREP?

Response

+CGEREP: <mode>

OK

Parameters

See Write Command

Write Command

AT+CGEREP=<

mode>

Response

OK

ERROR

Parameters

<mode>

0 Disable event reporting.

1 Enable event reporting.

Unsolicited Result Codes supported:

+CGEV: NW DEACT <PDP_type>,<PDP_addr>[,<cid>]

+CGEV: ME DEACT <PDP_type>,<PDP_addr>[,<cid>]

+CGEV: NW DETACH

+CGEV: ME DETACH

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Parameters

<PDP_type> Packet Data Protocol type (see +CGDCONT

Command)

<PDP_addr> Packet Data Protocol address (see +CGDCONT

Command)

<cid> Context Id (see +CGDCONT Command)

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

7.2.10 AT+CGREG Network Registration Status

AT+CGREG Network Registration Status

Test Command

AT+CGREG=?

Response

+CGREG: (list of supported <n>s)

OK

Parameters

See Write Command

Read Command

AT+CGREG?

Response

+CGREG: <n>,<stat>[,<lac>,<ci>]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

Write Command

AT+CGREG=[<

n>]

Response

OK

ERROR

Parameters

<n> 0 Disable network registration unsolicited result code

1 Enable network registration unsolicited result code

+CGREG:<stat>

2 Enable network registration and location information

unsolicited result code +CGREG: <stat>[,<lac>,<ci>]

<stat>

0

Not registered, MT is not currently searching an

operator to register to.The GPRS

service is disabled, the UE is

allowed to attach for GPRS if requested by the user.

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1 Registered, home network.

2

Not registered, but MT is currently trying to attach or

searching an operator to register to.

The GPRS service is

enabled, but an allowable PLMN is

currently not available. The

UE will start a GPRS attach as soon as an allowable PLMN is

available.

3 Registration denied, The GPRS service is disabled, the UE is

not allowed to attach for GPRS if it is requested by the user.

4 Unknown

5 Registered, roaming

<lac> String type (string should be included in quotation marks); two

byte location area code in hexadecimal format (e.g. "00C3"

equals 195 in decimal)

<ci> String type (string should be included in quotation marks); two

bytes cell ID in hexadecimal format

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference Note

7.2.11 AT+CGSMS Select Service for MO SMS Messages

AT+CGSMS Select Service for MO SMS Messages

Test Command

AT+CGSMS=?

Response

+CGSMS: (list of currently available <service>s)

OK

Parameters

See Write Command

Read Command

AT+CGSMS?

Response

+CGSMS: <service>

OK

Parameters

See Write Command

Write Command

AT+CGSMS=<se

rvice>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<service> A numeric parameter which indicates the service or service

preference to be used

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0 Packet Domain

1 Circuit switched

2 Packet Domain preferred (use circuit switched if

GPRS not available)

3 Circuit switched preferred (use Packet Domain if circuit

switched not available)

Parameter Saving

Mode

AUTO_SAVE

Max Response

Time

-

Reference

Note

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8 AT Commands for TCPIP Application Toolkit

8.1 Overview

Command Description

AT+CIPMUX Start up multi-IP connection

AT+CIPSTART Start up TCP or UDP connection

AT+CIPSEND Send data through TCP or UDP connection

AT+CIPQSEND Select data transmitting mode

AT+CIPACK Query previous connection data transmitting state

AT+CIPCLOSE Close TCP or UDP connection

AT+CIPSHUT Deactivate GPRS PDP context

AT+CLPORT Set local port

AT+CSTT Start task and set APN, user name, password

AT+CIICR Bring up wireless connection with GPRS or CSD

AT+CIFSR Get local IP address

AT+CIPSTATUS Query current connection status

AT+CDNSCFG Configure domain name server

AT+CDNSGIP Query the IP address of given domain name

AT+CIPHEAD Add an IP head at the beginning of a package received

AT+CIPATS Set auto sending timer

AT+CIPSPRT Set prompt of ‘>’ when module sends data

AT+CIPSERVER Configure module as server

AT+CIPCSGP Set CSD or GPRS for connection mode

AT+CIPSRIP Show remote IP address and port when received data

AT+CIPDPDP Set whether to check state of GPRS network timing

AT+CIPMODE Select TCPIP application mode

AT+CIPCCFG Configure transparent transfer mode

AT+CIPSHOWTP Display transfer protocol in IP head when received data

AT+CIPUDPMODE

UDP extended mode

AT+CIPRXGET Get data from network manually

AT+CIPSCONT Save TCPIP application context

AT+CIPRDTIMER Set remote delay timer

AT+CIPSGTXT Select GPRS PDP context

AT+CIPTKA Set TCP keepalive parameters

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8.2 Detailed Descriptions of Commands

8.2.1 AT+CIPMUX Start Up Multi-IP Connection

AT+CIPMUX Start Up Multi-IP Connection

Test Command

AT+CIPMUX=?

Response

+CIPMUX: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CIPMUX?

Response

+CIPMUX: <n>

OK

Parameters

See Write Command

Write Command

AT+CIPMUX=<

n>

Response

OK

Parameters

<n> 0 Single IP connection

1 Multi IP connection

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l Only in IP initial state, AT+CIPMUX=1 is effective;

l Only when multi IP connection and GPRS application are both shut

down, AT+CIPMUX=0 is effective.

8.2.2 AT+CIPSTART Start Up TCP or UDP Connection

AT+CIPSTART Start Up TCP or UDP Connection

Test Command

AT+CIPSTART=

?

Response

1) If AT+CIPMUX=0

+CIPSTART: (list of supported <mode>),(<IP address>),(<port>)

+CIPSTART: (list of supported <mode>),(<domain name>),(<port>)

OK

2) If AT+CIPMUX=1

+CIPSTART: (list of supported <n>),(list of supported <mode>),(<

IP

address>),(<port>)

+CIPSTART: (list of supported <n>),(list of supported <mode>),(<

domain

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name>),(<port>)

OK

Parameters

See Write Command

Write Command

1)If single IP

connection

(+CIPMUX=0)

AT+CIPSTART=

<mode>,<IP

address>,<port>

Or

AT+CIPSTART=

<mode>,<domai

n name>,<port>

2)If multi-

IP

connection

(+CIPMUX=1)

AT+CIPSTART=

<n>,<mode>,<ad

dress>,<port>

AT+CIPSTART=

<n>,<mode>,<do

main name>,

<port>

Response

1)If single IP connection (+CIPMUX=0)

If format is right response

OK

otherwise response

If error is related to ME functionality:

+CME ERROR <err>

Response when connection exists

ALREADY CONNECT

Response when connection is successful

CONNECT OK

Otherwise

STATE: <state>

CONNECT FAIL

2)If multi-IP connection

(+CIPMUX=1)

If format is right

OK,

otherwise response

If error is related to ME functionality:

+CME ERROR <err>

Response when connection exists

<n>,ALREADY CONNECT

If connection is successful

<n>,CONNECT OK

Otherwise

<n>,CONNECT FAIL

Parameters

<n> 0..5 A numeric parameter wh

ich indicates the connection

number

<mode> A string parameter which indicates the connection type

"TCP" Establish a TCP connection

"UDP" Establish a UDP connection

<IP address> A string parameter which indicates remote server IP address

<port> Remote server port

<domain name> A

string parameter which indicates remote server domain

name

<state> A string parameter which indicates the progress of connecting

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0 IP INITIAL

1 IP START

2 IP CONFIG

3 IP GPRSACT

4 IP STATUS

5 TCP CONNECTING/UDP CONNECTING/

SERVER LISTENING

6 CONNECT OK

7 TCP CLOSING/UDP CLOSING

8 TCP CLOSED/UDP CLOSED

9 PDP DEACT

In Multi-IP state:

0 IP INITIAL

1 IP START

2 IP CONFIG

3 IP GPRSACT

4 IP STATUS

5 IP PROCESSING

9 PDP DEACT

Parameter Saving

Mode

NO_SAVE

Max Response

Time

When mode is multi-IP state, the max response time75 seconds.

When mode is single state, and the state is IP INITIAL, the max response

time is 160 seconds.

Reference

Note

l This command allows establishment of

a TCP/UDP connection only

when the state is IP INITIAL or IP STATUS when it is in single state.

In multi-

IP state, the state is in IP STATUS only. So it is necessary to

process "AT+CIPSHUT" before user establishes

a TCP/UDP

connection with this command when the state is not IP INITIAL or IP

STATUS.

l When module is in multi-IP state, before this command is executed, it

is necessary to process "AT+CSTT, AT+CIICR, AT+CIFSR".

8.2.3 AT+CIPSEND Send Data Through TCP or UDP Connection

AT+CIPSEND Send Data Through TCP or UDP Connection

Test Command

AT+CIPSEND=?

Response

1) For single IP connection (+CIPMUX=0)

+CIPSEND: <length>

OK

2) For multi IP connection (+CIPMUX=1)

+CIPSEND: (0-5),<length>

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OK

Parameters

See Write Command

Read Command

AT+CIPSEND?

Response

1) For single IP connection (+CIPMUX=0)

+CIPSEND: <size>

OK

2) For multi IP connection (+CIPMUX=1)

+CIPSEND: <n>,<size>

OK

Parameters

<n> A numeric parameter which indicates the connection number

<size> A numeric parameter which indicates the data length sent at

a time

Write Command

1) If single IP

connection

(+CIPMUX=0)

AT+CIPSEND=<

length>

2) If multi IP

connection

(+CIPMUX=1)

AT+CIPSEND=<

n>[,<length>]

Response

This Command is used to send changeable length data

If single IP is connected (+CIPMUX=0)

If connection is not established or module is disconnected:

If error is related to ME functionality:

+CME ERROR <err>

If sending is successful:

When +CIPQSEND=0

SEND OK

When +CIPQSEND=1

DATA ACCEPT:<length>

If sending fails:

SEND FAIL

If multi IP connection is established (+CIPMUX=1)

If connection is not established or module is disconnected:

If error is related to ME functionality:

+CME ERROR <err>

If sending is successful:

When +CIPQSEND=0

<n>,SEND OK

When +CIPQSEND=1

DATA ACCEPT:<n>,<length>

If sending fails:

<n>,SEND FAIL

Parameters

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<n> A numeric parameter which indicates the connection number

<length> A

numeric parameter which indicates the length of sending

data, it must be less than <size>

Execution

Command

AT+CIPSEND

response">", then

type data for send,

tap CTRL+Z to

send, tap ESC to

cancel the

operation

Response

This Command is used to send changeable length data.

If single IP connection is established (+CIPMUX=0)

If connection is not established or module is disconnected:

If error is related to ME functionality:

+CME ERROR <err>

If sending is successful:

When +CIPQSEND=0

SEND OK

When +CIPQSEND=1

DATA ACCEPT:<length>

If sending fails:

SEND FAIL

Note

This Command can only be used in single IP connection mode

(+CIPMUX=0) and to send data on the TCP or UDP connection that has

been established already. Ctrl-Z is used as a termination symbol. ESC is

used to cancel sending data. There are at most <size> bytes which can be

sent at a time.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

When +CIPQSEND=0 and the remote server no response, after 645

seconds, “CLOSE” will be reported.

Reference

Note

l The data length which can be sent depends on network status.

l Set the time that send data automatically with the Command of

AT+CIPATS.

l Only send data at the status of established connection.

8.2.4 AT+CIPQSEND Select Data Transmitting Mode

AT+CIPQSEND Select Data Transmitting Mode

Test Command

AT+CIPQSEND

=?

Response

+CIPQSEND: (0,1)

OK

Parameters

See Write Command

Read Command Response

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AT+CIPQSEND

?

+CIPQSEND: <n>

OK

Parameter

See Write Command

Write Command

AT+CIPQSEND

=<n>

Response

OK

Parameters

<n> 0 Normal mode –

when the server receives TCP data, it will

responsd SEND OK.

1 Quick send mode – when the data is sent to module, it will

responsd DATA ACCEPT:<n>,<length>, while not responding SEND OK.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.5 AT+CIPACK Query Previous Connection Data Transmitting State

AT+CIPACK Query Previous Connection Data Transmitting State

Test Command

AT+CIPACK=?

Response

OK

Write Command

If in multi IP

connection

(+CIPMUX=1)

AT+CIPACK=<

n>

Response

+CIPACK: <txlen>, <acklen>, <nacklen>

OK

Parameters

<n> A numeric parameter which indicates the connection number

<txlen> The data amount which has been sent

<acklen> The data amount confirmed successfully by the server

<nacklen> The data amount without confirmation by the server

Execution

Command

If in single IP

connection

(+CIPMUX=0)

AT+CIPACK

Response

+CIPACK: <txlen>, <acklen>, <nacklen>

OK

Parameters

See Write Command

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

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Reference

Note

8.2.6 AT+CIPCLOSE Close TCP or UDP Connection

AT+CIPCLOSE Close TCP or UDP Connection

Test Command

AT+CIPCLOSE

=?

Response

OK

Write Command

1) If single IP

connection

(+CIPMUX=0)

AT+CIPCLOSE

=<n>

2) If multi IP

connection

(+CIPMUX=1)

AT+CIPCLOSE

=<id>,[<n>]

Response:

1) For single IP connection (+CIPMUX=0)

CLOSE OK

2) For multi IP connection (+CIPMUX=1)

<id>, CLOSE OK

Parameters

<n> 0 Slow close

1 Quick close

<id> A numeric parameter which indicates the connection number

Execution

Command

AT+CIPCLOSE

Response

If close is successfully:

CLOSE OK

If close fails:

ERROR

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

AT+CIPCLOSE only closes connection at corresponding status of

TCP/UDP stack. To see the status use AT+CIPSTATUS command. Status

should be:

TCP CONNECTING, UDP CONNECTING, SERVER LISTENING or

CONNECT OK in single-connection mode (see <state> parameter);

CONNECTING or CONNECTED in multi-connection mode (see <client

state>);

OPENING or LISTENING in multi-connection mode (see <server state>).

Otherwise it will return ERROR”.

8.2.7 AT+CIPSHUT Deactivate GPRS PDP Context

AT+CIPSHUT Deactivate GPRS PDP Context

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Test Command

AT+CIPSHUT=?

Response

OK

Execution

Command

AT+CIPSHUT

Response

If close is successful:

SHUT OK

If close fails:

ERROR

Parameter Saving

Mode

NO_SAVE

Max Response

Time

65 seconds

Reference

Note

l If this command is executed in multi-connection mode, all of the IP

connection will be shut.

l User can close gprs pdp context by AT+CIPSHUT. After it is closed,

the status is IP INITIAL.

l If "+PDP: DEACT"

urc is reported which means the gprs is released by

the network, then user still needs to execute "AT+CIPSHUT"

command to make PDP context come back to original state.

8.2.8 AT+CLPORT Set Local Port

AT+CLPORT Set Local Port

Test Command

AT+CLPORT=?

Response

1) For single IP connection (+CIPMUX=0)

+CLPORT: ("TCP","UDP"),(0-65535)

OK

2) For multi IP connection (+CIPMUX=1)

+CLPORT: (0-5),("TCP","UDP"),(0-65535)

OK

Parameters

See Write Command

Read Command

AT+CLPORT?

Response

1) For single IP connection (+CIPMUX=0)

+CLPORT: <TCP port>,<UDP port>

OK

2) For multi IP connection (+CIPMUX=1)

+CLPORT: 0,<TCP port>,<UDP port>

+CLPORT: 1,<TCP port>,<UDP port>

+CLPORT: 2,<TCP port>,<UDP port>

+CLPORT: 3,<TCP port>,<UDP port>

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+CLPORT: 4,<TCP port>,<UDP port>

+CLPORT: 5,<TCP port>,<UDP port>

OK

Parameters

See Write Command

Write Command

1) For single IP

connection

(+CIPMUX=0)

AT+CLPORT=<

mode>,<port>

2) For multi IP

connection

(+CIPMUX=1)

AT+CLPORT=<

n>,<mode>,<por

t>

Response

OK

ERROR

Parameters

<n> 0..5 A numeric parameter which indicates the connection

number this used in multi IP connection

<mode> A string parameter which indicates the connection type

"TCP" TCP local port

"UDP" UDP local port

<port> 0-65535 A numeric parameter which indicates the local port

default value is 0, a port can be dynamically allocated a port.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command will be effective when module is set as a Client.

8.2.9 AT+CSTT Start Task and Set APN, USER NAME, PASSWORD

AT+CSTT Start Task and Set APN, USER NAME, PASSWORD

Test Command

AT+CSTT=?

Response

+CSTT: "APN","USER","PWD"

OK

Parameters

See Write Command

Read Command

AT+CSTT?

Response

+CSTT: <apn>,<user name>,<password>

OK

Parameters

See Write Command

Write Command

AT+CSTT=<apn

>,<user

Response

OK

ERROR

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name>,<passwor

d>

Parameters

<apn> A string parameter

which indicates the GPRS access point

name. The max length is 50 bytes.

<user name> A string parameter which indicates the GPRS user name.

The max length is 50 bytes.

<password> A string parameter which indicates the GPRS password.

The max length is 50 bytes.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Execution

Command

AT+CSTT

Response

OK

ERROR

Reference

Note

The write command and execution command of this command is valid only

at the state of IP INITIAL. After this command is executed, the state will be

changed to IP START.

8.2.10 AT+CIICR Bring Up Wireless Connection with GPRS or CSD

AT+CIICR Bring Up Wireless Connection with GPRS or CSD

Test Command

AT+CIICR=?

Response

OK

Execution

Command

AT+CIICR

Response

OK

ERROR

Parameter Saving

Mode

NO_SAVE

Max Response

Time

85 seconds

Reference Note

l AT+CIICR only activates moving scene at the status of IP START,

after operating this Command is executed, the state will be changed to

IP CONFIG.

l After module accepts the activated operation, if it is activated

successfully, module state will be changed to IP GPRSACT, and it

responds OK, otherwise it will respond ERROR.

8.2.11 AT+CIFSR Get Local IP Address

AT+CIFSR Get Local IP Address

Test Command

AT+CIFSR=?

Response

OK

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Execution

Command

AT+CIFSR

Response

ERROR

Parameter

<IP address> a string parameter which indicates the IP address assigned

from GPRS or CSD.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

Only after PDP context is activated, local IP address can be obtained by

AT+CIFSR, otherwise it will respond ERROR. To see the status use

AT+CIPSTATUS command. Status should be:

IP GPRSACT, TCP CONNECTING, UDP CONNECTING, SERVER

LISTENING, IP STATUS,

CONNECT OK, TCP CLOSING, UDP

CLOSING, TCP CLOSED, UDP CLOSED in single-

connection mode (see

<state> parameter);

IP STATUS, IP PROCESSING in multi-connection mode (see <state>

parameter).

8.2.12 AT+CIPSTATUS Query Current Connection Status

AT+CIPSTATUS Query Current Connection Status

Test Command

AT+CIPSTATUS

=?

Response

OK

Write Command

If multi IP

connection

mode

(+CIPMUX=1)

AT+CIPSTATU

S=<n>

Response

+CIPSTATUS: <n>,<bearer>, <TCP/UDP>, <IP address>, <port>,

OK

Parameters

See Execution Command

Execution

Command

AT+CIPSTATUS

Response

1）If in single connection mode (+CIPMUX=0)

OK

STATE: <state>

2) If in multi-connection mode (+CIPMUX=1)

OK

STATE: <state>

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If the module is set as server

S: 0, <bearer>, <port>, <server state>

C: <n>,<bearer>, <TCP/UDP>, <IP address>, <port>, <client state>

Parameters

<n> 0-5 A

numeric parameter which indicates the connection

number

<bearer> 0-1 GPRS bearer, default is 0

<server state> OPENING

LISTENING

CLOSING

<client state> INITIAL

CONNECTING

CONNECTED

REMOTE CLOSING

CLOSING

CLOSED

<state> A string parameter which indicates the progress of

connecting

0 IP INITIAL

1 IP START

2 IP CONFIG

3 IP GPRSACT

4 IP STATUS

5 TCP CONNECTING/UDP CONNECTING

/SERVER LISTENING

6 CONNECT OK

7 TCP CLOSING/UDP CLOSING

8 TCP CLOSED/UDP CLOSED

9 PDP DEACT

In Multi-IP state:

0 IP INITIAL

1 IP START

2 IP CONFIG

3 IP GPRSACT

4 IP STATUS

5 IP PROCESSING

9 PDP DEACT

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

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8.2.13 AT+CDNSCFG Configure Domain Name Server

AT+CDNSCFG Configure Domain Name Server

Test Command

AT+CDNSCFG=

?

Response

+CDNSCFG: ("Primary DNS"),("Secondary DNS")

OK

Parameters

See Write Command

Read Command

AT+CDNSCFG?

Response

PrimaryDns: <pri_dns>

SecondaryDns: <sec_dns>

OK

Parameter

See Write Command

Write Command

AT+CDNSCFG=

<pri_dns>[,<sec_

dns>]

Response

OK

ERROR

Parameters

<pri_dns> A string parameter which

indicates the IP address of the

primary domain name server

<sec_dns> A string parameter which indicates the IP address of the

secondary domain name server

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.14 AT+CDNSGIP Query the IP Address of Given Domain Name

AT+CDNSGIP Query the IP Address of Given Domain Name

Test Command

AT+CDNSGIP=

?

Response

OK

Write Command

AT+CDNSGIP=

Response

OK

ERROR

If successful, return:

+CDNSGIP: 1, <domain name>,<IP1>[,<IP2>]

If fail, return:

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+CDNSGIP:0,<dns error code>

Parameters

<domain name> A string parameter which indicates the domain name

<IP1> A string parameter which indicates the first IP address

corresponding to the domain name

<IP2> A string parameter which indicates the second IP address

corresponding to the domain name

<dns error code> A numeric parameter which indicates the error code

8 DNS COMMON ERROR

3 NETWORK ERROR

There are some other error codes as well.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.15 AT+CIPHEAD Add an IP Head at the Beginning of a Package Received

AT+CIPHEAD Add an IP Head at the Beginning of a Package Received

Test Command

AT+CIPHEAD=

?

Response

+CIPHEAD: (list of supported <mode>s)

OK

Parameter

See Write Command

Read Command

AT+CIPHEAD?

Response

+CIPHEAD: <mode>

OK

Parameters

See Write Command

Write Command

AT+CIPHEAD=

<mode>

Response

OK

ERROR

Parameters

<mode> A

numeric parameter which indicates whether an IP header

is added to the received data or not.

0 Not add IP header

1 Add IP header, the format is:

1) For single IP connection (+CIPMUX=0)

+IPD,<data length>:

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2) For multi IP connection (+CIPMUX=1)

+RECEIVE,<n>,<data length>:

Paramete

r Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.16 AT+CIPATS Set Auto Sending Timer

AT+CIPATS Set Auto Sending Timer

Test Command

AT+CIPATS=?

Response

+CIPATS: (list of supported <mode>s),(list of supported <time>)

OK

Parameters

See Write Command

Read Command

AT+CIPATS?

Response

+CIPATS: <mode>,<time>

OK

Parameters

See Write Command

Write Command

AT+CIPATS=<m

ode>[,<time>]

Response

OK

ERROR

Parameters

<mode> A

numeric parameter which indicates whether set timer when

module is sending data

0 Not set timer when module is sending data

1 Set timer when module is sending data

<time> 1..100 A numeric parameter which indicates the seconds

after which the data will be sent

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

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8.2.17 AT+CIPSPRT Set Prompt of ‘>’ When Module Sends Data

AT+CIPSPRT Set Prompt of ‘>’ When Module Sends Data

Test Command

AT+CIPSPRT=?

Response

+CIPSPRT: (list of supported <send prompt>s)

OK

Parameters

See Write Command

Read Command

AT+CIPSPRT?

Response

+CIPSPRT: <send prompt>

OK

Parameters

See Write Command

Write Command

AT+CIPSPRT=<

send prompt>

Response

OK

ERROR

Parameters

<send prompt> A numeric parameter which indicates whether to

echo

prompt ‘>’ after module issues AT+CIPSEND command.

0 It shows "send ok" but does not prompt echo ‘>’ when sending

is successful.

1 It prompts echo ‘>’ and shows "send ok" when sending is

successful.

2 It neither prompts echo ‘>’ nor shows "send ok" when sending is

successful.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.18 AT+CIPSERVER Configure Module as Server

AT+CIPSERVER Configure Module as Server

Test Command

AT+CIPSERVE

R=?

Response

+CIPSERVER: (0-CLOSE SERVER, 1-OPEN SERVER),(1-65535)

OK

Parameters

See Write Command

Read Command Response

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AT+CIPSERVE

R?

+CIPSERVER: <mode>[,<port>,<channel id>,<bearer>]

OK

Parameters

See Write Command

Write Command

AT+CIPSERVE

R=<mode>[,<por

t>]

Response

OK

ERROR

Parameters

<mode> 0 Close server

1 Open server

<port> 1..65535 Listening port

<channel id> Channel id

<bearer> GPRS bearer

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command is allowed to establish a TCP server only when the state is IP

INITIAL or IP STATUS when it is in single state. In multi-IP state, the state

is in IP STATUS only.

8.2.19 AT+CIPCSGP Set CSD or GPRS for Connection Mode

AT+CIPCSGP Set CSD or GPRS for Connection Mode

Test Command

AT+CIPCSGP=?

Response

+CIPCSGP:0-CSD,DIALNUMBER,USER

NAME,PASSWORD,RATE(0-3)

+CIPCSGP: 1-GPRS,APN,USER NAME,PASSWORD

OK

Parameters

See Write Command

Read Command

AT+CIPCSGP?

Response

+CIPCSGP: <mode>, <apn>, <user name>, <password>[,<rate>]

OK

Parameters

See Write Command

Write Command

AT+CIPCSGP=<

mode>[,

Response

OK

ERROR

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(<apn>,<user

name>,

<password>),(<d

ial

number>,<user

name>,<passwor

d>,<rate>)]

Parameters

<mode> A

numeric parameter which indicates the wireless connection

mode

0 set CSD as wireless connection mode

1 set GPRS as wireless connection mode

GPRS parameters:

<apn> A string parameter which indicates the access point name

<user name> A string parameter which indicates the user name

<password> A string paramet

er which indicates the password CSD

parameters:

<dial number> A string parameter which indicates the CSD dial numbers

<user name> A string parameter which indicates the CSD user name

<password> A string parameter which indicates the CSD password

<rate> A

numeric parameter which indicates the CSD connection

rate

0 2400

1 4800

2 9600

3 14400

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.20 AT+CIPSRIP Show Remote IP Address and Port When Received Data

AT+CIPSRIP Show Remote IP Address and Port When Received Data

Test Command

AT+CIPSRIP=?

Response

+CIPSRIP: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CIPSRIP?

Response

+CIPSRIP: <mode>

OK

Parameters

See Write Command

Write Command

AT+CIPSRIP=<

Response

OK

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mode> ERROR

Parameters

<mode> A numeric parameter which

shows remote IP address and

port.

0 Do not show the prompt

1 Show the prompt, the format is as follows:

1) For single IP connection (+CIPMUX=0)

+RECV FROM:<IP ADDRESS>:<PORT>

1) For multi IP connection (+CIPMUX=1)

+RECEIVE,<n>,<data length>,<IP ADDRESS>:<PORT>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

8.2.21 AT+CIPDPDP Set Whether to Check State of GPRS Network Timing

AT+CIPDPDP Set Whether to Check State of GPRS Network Timing

Test Command

AT+CIPDPDP=?

Response

+CIPDPDP: (list of supported<mode>s, list of supported <interval>,

list

of supported <timer>)

OK

Parameters

See Write Command

Read Command

AT+CIPDPDP?

Response

+CIPDPDP: <mode>, <interval>, <timer>

OK

Parameters

See Write Command

Write Command

AT+CIPDPDP=<

mode>[,<interval

>,<timer>]

Response

OK

ERROR

Parameters

<mode>

0 Not set detect PDP

1 Set detect PDP

1<=interval<=180(s)

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<timer>

1<=timer<=10

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

If "+PDP: DEACT" urc is reported because of module not attaching to gprs

for a certain time or other reasons, user still needs to execute

"AT+CIPSHUT" command makes PDP context come back to original state.

8.2.22 AT+CIPMODE Select TCPIP Application Mode

AT+CIPMODE Select TCPIP Application Mode

Test Command

AT+CIPMODE=

?

Response

+CIPMODE: (0-NORMAL MODE,1-TRANSPARENT MODE)

OK

Parameters

See Write Command

Read Command

AT+CIPMODE?

Response

+CIPMODE: <mode>

OK

Parameters

See Write Command

Write Command

AT+CIPMODE=

<mode>

Response

OK

ERROR

Parameters

<mode> 0 Normal mode

1 Transparent mode

Parameter

Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.23 AT+CIPCCFG Configure Transparent Transfer Mode

AT+CIPCCFG Configure Transparent Transfer Mode

Test Command Response

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AT+CIPCCFG=

?

+CIPCCFG:

(NmRetry:3-8),(WaitTm:2-10),(SendSz:1-1460),(esc:0,1) ,(Rxmode:0,1),

(RxSize:50-1460),(Rxtimer:20-1000)

OK

Parameters

See Write Command

Read Command

AT+CIPCCFG?

Response

+CIPCCFG:

<NmRetry>,<WaitTm>,<SendSz>,<esc>,<Rxmode>,<RxSize>,<Rxtime

r>

OK

Parameters

See Write Command

Write Command

AT+CIPCCFG=

<NmRetry>,<Wa

itTm>,<SendSz>,

<esc>[,<Rxmode

>,<RxSize>,<Rxt

imer>]

Response

OK

ERROR

Parameters

<NmRetry> Number of retries to be made for an IP packet.

<WaitTm> Number of 100ms intervals to wait for serial input before

sending the packet.

<SendSz> Size in bytes of data block to be received from serial port

before sending.

<esc> Whether turn on the escape sequence, default is TRUE.

0 Turn off the escape sequence

1 Turn on the escape sequence

Whether to set time interval during output data from serial

port.

0 output data to serial port without interval

1 output data to serial port within <Rxtimer> interval

.

<RxSize> Output data length for each time, default value is 1460.

<Rxtimer> Time interval (ms) to wait for serial port to output data

again. Default value: 50ms

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command will be effective only in single connection mode

(+CIPMUX=0)

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8.2.24 AT+CIPSHOWTP Display Transfer Protocol in IP Head When Received Data

AT+CIPSHOWTP Display Transfer Protocol in IP Head When Received Data

Test Command

AT+CIPSHOWTP

=?

Response

+CIPSHOWTP: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CIPSHOWTP

?

Response

+CIPSHOWTP: <mode>

OK

Parameters

See Write Command

Write Command

AT+CIPSHOWTP

=<mode>

Response

OK

ERROR

Parameters

<mode> A numeric parameter which indicates whether to

display

transfer protocol in IP header to received data or not

0 Not display transfer protocol

1 Display transfer protocol, the format is "+IPD,

<data size>,<TCP/UDP>:<data>"

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference Note

l This command will be effective only in single connection mode

(+CIPMUX=0).

l Only when +CIPHEAD is set to 1, the setting of this command will

work.

8.2.25 AT+CIPUDPMODE UDP Extended Mode

AT+CIPUDPMODE UDP Extended Mode

Test Command

AT+CIPUDPMOD

E=?

Response

1) For single IP connection (+CIPMUX=0)

+CIPUDPMODE: (0-2),("(0-255).(0-255).(0-255).(0-255)"),(1-65535)

OK

2) For multi IP connection (+CIPMUX=1)

+CIPUDPMODE:

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(0-5),(0-2),("(0-255).(0-255).(0-255).(0-255)"),(1-65535)

OK

Parameters

See Write Command

Read Command

AT+CIPUDPMOD

E?

Response

1) For single IP connection (+CIPMUX=0)

+CIPUDPMODE: <mode>[,<IP address>,<Port>]

OK

2) For multi IP connection (+CIPMUX=1)

+CIPUDPMODE: 0, <mode>[,<IP address>,<Port>]

+CIPUDPMODE: 1,<mode>[,<IP address>,<Port>]

+CIPUDPMODE: 2,<mode>[,<IP address>,<Port>]

+CIPUDPMODE: 3,<mode>[,<IP address>,<Port>]

+CIPUDPMODE: 4,<mode>[,<IP address>,<Port>]

+CIPUDPMODE: 5,<mode>[,<IP address>,<Port>]

OK

Parameter

See Write Command

Write Command

1) For single IP

connection

(+CIPMUX=0)

AT+CIPUDPMOD

E=<mode>[,<IP

address>,<Port>]

2) For multi IP

connection

(+CIPMUX=1)

AT+CIPUDPMOD

E=<n>,<mode>[,<I

P

address>,<Port>]

Response

OK

ERROR

<n> 0-5 A

numeric parameter which indicates the connection

number

<mode> 0 UDP Normal Mode

1 UDP Extended Mode

2 Set UDP address to be sent

<IP address> A string parameter which indicates remote IP address

<port> Remote port

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

8.2.26 AT+CIPRXGET Get Data from Network Manually

AT+CIPRXGET Get Data from Network Manually

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Test Command

AT+CIPRXGET

=?

Response

If single IP connection (+CIPMUX=0)

+CIPRXGET: (list of supported <mode>s),(list of supported <reqlength>)

OK

If multi IP connection (+CIPMUX=1)

+CIPRXGET: (list of supported <mode>s), (list of supported <id>s), (

list

of supported <reqlength>)

OK

Parameters

See Write Command

Read Command

AT+CIPRXGET

?

Response

+CIPRXGET: <mode>

OK

Parameters

See Write Command

Write Command

1) If single IP

connection

(+CIPMUX=0)

AT+CIPRXGET

=<mode>[,<reqle

ngth>]

2) If multi

IP

connection

(+CIPMUX=1)

AT+CIPRXGET

=<mode>[,<id>,<

reqlength>]

Response

OK

ERROR

1)For single IP connection

If “AT+CIPSRIP=1” is set, IP address and port are contained.

if <mode>=1

+CIPRXGET: 1[,<IP ADDRESS>:<PORT>]

if <mode>=2

+CIPRXGET: 2,<reqlength>,<cnflength>[,<IP ADDRESS>:<PORT>]

1234567890…

OK

if <mode>=3

+CIPRXGET: 3,<reqlength>,<cnflength>[,<IP ADDRESS>:<PORT>]

5151…

OK

if <mode>=4

+CIPRXGET: 4, <cnflength>

OK

2)For multi IP connection

If “AT+CIPSRIP=1” is set, IP address and port is contained.

if <mode>=1

+CIPRXGET: 1[,<id>,<IP ADDRESS>:<PORT>]

if <mode>=2

+CIPRXGET: 2,<id>,<reqlength>,<cnflength>[,<IP

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ADDRESS>:<PORT>]

1234567890…

OK

if <mode>=3

+CIPRXGET: 3,<id>,<reqlength>,<cnflength>[,<IP

ADDRESS>:<PORT>]

5151…

OK

if <mode>=4

+CIPRXGET: 4, <id>,<cnflength>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode>

0

Disable getting data from network manually, the module is

set to normal mode, data will be pushed to TE directly.

1 Enable getting data from network manually.

2 The module can get data, but the length of output data can

not exceed 1460 bytes at a time.

3 Similar to mode 2, but in HEX mode, which means the

module can get 730 bytes maximum at a time.

4 Query how many data are not read with a given ID.

<id> A numeric parameter which indicates the connection number

<reqlength> Requested number of data bytes (1-1460 bytes)to be read

<cnflength> Confirmed number of data bytes to be read, which may be less

than <length>. 0 indicates that no data can be read.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

To enable this function, parameter <mode> must be set to 1 before

connection.

8.2.27 AT+CIPSCONT Save TCPIP Application Context

AT+CIPSCONT Save TCPIP Application Context

Read Command

AT+CIPSCONT

?

Response

TA returns TCPIP Application Context, which consists of the following

AT Command parameters.

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+CIPSCONT: <mode0>

+CIPCSGP: <mode>

Gprs Config APN: <apn>

Gprs Config UserId: <user name>

Gprs Config Password: <password>

+CIPHEAD: <mode>

+CIPSHOWTP: <mode>

+CIPSRIP: <mode>

+CIPATS: <mode>,<time>

+CIPSPRT: <send prompt>,<notshowsendok>

+CIPQSEND: <n>

+CIPMODE: <mode>

+CIPCCFG:

<NmRetry>,<WaitTm>,<SendSz>,<esc>,<Rxmode>,<RxSize>,<Rxti

mer>

+CIPMUX: <n>

+CIPDPDP: <mode>, <interval>, <timer>

+CIPRXGET: <mode>

+CIPRDTIMER: <rdsigtimer>,<rdmuxtimer>

OK

Parameters

<mode0> 0 Saved, the value from NVRAM

1 Unsaved, the value from RAM

For other parameters, see the related command.

Execution

Command

AT+CIPSCONT

Response

Module saves current TCPIP Application Contexts to NVRAM. When

system is rebooted, the parameters will be loaded automatically.

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

8.2.28 AT+CIPRDTIMER Set Remote Delay Timer

AT+CIPRDTIMER Set Remote Delay Timer

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Test Command

AT+CIPRDTIM

ER=?

Response

+CIPRDTIMER: (100-4000),(100-7000)

OK

Parameters

See Write Command

Read Command

AT+CIPRDTIM

ER?

Response

+CIPRDTIMER: <rdsigtimer>,<rdmuxtimer>

OK

Parameters

See Write Command

Write Command

AT+CIPRDTIM

ER=<rdsigtimer

>,<rdmuxtimer>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<rdsigtimer> remote delay timer of single connection.

<rdmuxtimer> remote delay timer of multi-connections.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command is used to shorten the disconnect time locally when the

remote server has been disconnected.

8.2.29 AT+CIPSGTXT Select GPRS PDP context

AT+CIPSGTXT Select GPRS PDP context

Test Command

AT+CIPSGTXT

=?

Response

+CIPSGTXT: (0,1)

OK

Parameters

See Write Command

Write Command

AT+CIPSGTXT

=<mode>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 0 select first PDP context

1 select second PDP context

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Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command is used to select pdp context, only for multi IP connection

(+CIPMUX=1).

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8.2.30 AT+CIPTKA Set TCP Keepalive Parameters

AT+CIPTKA Set TCP Keepalive Parameters

Test Command

AT+CIPTKA=?

Response

+CIPTKA: (list of supported <mode>s),(list of supported

<keepIdle>s),(list of supported <keepInterval>),(list of

supported <keepCount>s)

OK

Parameters

See Write Command

Read Command

AT+CIPTKA?

Response

+CIPTKA: <mode>,<keepIdle>,<keepInterval>,<keepCount>

OK

Parameters

See Write Command

Write Command

AT+CIPTKA=

<mode>[,<keepI

dle>[,<keepInter

val>[,<keepCoun

t>]]]

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<mode> Set TCP keepalive option.

0 Disable TCP keep alive mechanism

1 Enable TCP keep alive mechanism

<keepIdle> Integer type; Idle time (in second) before TCP

send the

initial keepalive probe.

30-7200 Default: 7200

Interval time (in second) between keepalive probes

retransmission.

30-600 Default: 75

Integer type; Maximum number of keepalive

probes to be sent.

1-9 Default: 9

Reference

Note

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9 AT Commands for IP Application

9.1 Overview

Command Description

AT+SAPBR Bearer settings for applications based on IP

9.2 Detailed Descriptions of Commands

9.2.1 AT+SAPBR Bearer Settings for Applications Based on IP

AT+SAPBR Bearer Settings for Applications Based on IP

Test Command

AT+SAPBR=?

Response

+SAPBR: (0-4),(1-3), "ConParamTag","ConParamValue"

OK

Parameters

See Write Command

Write Command

AT+SAPBR=<c

md_type>,<cid>[

,<ConParamTag

>,<ConParamVa

lue>]

Response

OK

If<cmd_type> = 2

+SAPBR: <cid>,<Status>,<IP_Addr>

OK

If <cmd_type>=4

+SAPBR:

OK

Unsolicited Result Code

+SAPBR <cid>: DEACT

Parameters

<cmd_type>

0 Close bearer

1 Open bearer

2 Query bearer

3 Set bearer parameters

4 Get bearer parameters

<cid> Bearer profile identifier

0 Bearer is connecting

1 Bearer is connected

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2 Bearer is closing

3 Bearer is closed

<ConParamTag> Bearer parameter

"CONTYPE" Type of Internet

connection. Value refer to

<ConParamValue_ConType>

"APN" Access point name string: maximum 64

characters

"USER" User name string: maximum 32 characters

"PWD" Password string: maximum 32 characters

"PHONENUM" Phone number for CSD call

"RATE" CSD connection rate. For value refer to

<ConParamValue_Rate>

<ConParamValue> Bearer paramer value

<ConParamValue_ConType>

"CSD" Circuit-switched data call.

"GPRS" GPRS connection.

<ConParamValue_Rate>

0 2400

1 4800

2 9600

3 14400

<IP_Addr> The IP address of bearer

Parameter Saving

Mode

NO_SAVE

Max Response

Time

When <cmd_type> is 1, 85 seconds

When <cmd_type> is 0, 65 seconds

Reference

Note

This command is applied to activate some applications such as HTTP, FTP.

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10 AT Commands for PING Support

10.1 Overview

Command Description

AT+CIPPING Ping request

AT+CIPCTL Set the mode when receiving an IP packet

AT+CIPFLT Set the rules of IP filter

AT+CIPBEIPING

Set the module to be PING or not

10.2 Detailed Descriptions of Commands

10.2.1 AT+CIPPING PING Request

AT+CIPPING PING Request

Test Command

AT+CIPPING=?

Response

+CIPPING: (list of supported <retryNum>s),(list of supported

<dataLen>s),(list of supported <timeout>s),(list of supported <ttl>s)

OK

Parameters

See Write Command

Read Command

AT+CIPPING?

Response

+CIPPING: <retryNum>,<dataLen>,<timeout>,<ttl>

OK

Parameters

See Write Command

Write Command

AT+CIPPING=<IP

addr>[,<retryNum

>[,<dataLen>[,<ti

meout>[,<ttl>]]]]

Response

+CIPPING: <replyId>,<Ip Address>,<replyTime>,<ttl>[<CR><LF>

+CIPPING: <replyId>,<Ip Address>,<replyTime>,<ttl>

[...]]

OK

or

ERROR

or

+CME ERROR: <err>

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Parameters

<IPaddr> Address of the remote host,string type.This

parameter can be either:

- IP address in the format:”xxx.xxx.xxx.xxx”

- Host name solved by a DNS query

<retryNum> The number of Ping Echo Requset to send

1-100 Default: 4

<dataLen> The length of Ping Echo Request data

0-1024 Default: 32

<timeout> The timeout,in units of 100 ms,waiting for a single

Echo Reply

1-600 Default: 100(10 seconds)

<ttl> Time to live

1-255 Default: 64

<replyId> Echo Reply number

<IP Address> IP Address of the remote host

<replyTime> Time,in units of 100 ms, required to receive the

response

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l Before sending PING Request the GPRS context must be activated.

l When the Echo Request timeout expires (no reply received on

time), the response will contains <replyTime> setting to 600 and

<ttl> setting to 255.

l When executing this command, if PDP context is deactivated for

some reasons, such as out of service, etc., the “+PDP: DEACT”

URC is reported and the command will end immediately.

10.2.2 AT+CIPCTL Set the Mode When Receiving an IP Packet

AT+CIPCTL Set the Mode When Receiving an IP Packet

Test Command

AT+CIPCTL=?

Response

+CIPCTL: (list of supported <mode>s)

OK

Parameters

See Write Command

Read Command

AT+CIPCTL?

Response

+CIPCTL: <mode>

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OK

Parameters

See Write Command

Write Command

AT+CIPCTL=<mod

e>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<mode> 0 Disable to send Echo Reply

1 Enable to send Echo Reply to every IP address

pinging it

2 Enable to send Echo Reply only to a subset of IP

Addresses pinging it.

This subset of IP Addresses

can be set by “AT+CIPFLT” command.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

The value of <mode> is stored in non volatile memory.

10.2.3 AT+CIPFLT Set the Rules of IP Filter

AT+CIPFLT Set the Rules of IP Filter

Test Command

AT+CIPFLT=?

Response

+CIPFLT: (list of supported <action>s),(list of supported <item>s)

OK

Parameters

See Write Command

Read Command

AT+CIPFLT?

Response

+CIPFLT: <item>,<ipAddr>,<mask>

[<CR><LF>+CIPFLT: <item>,<ipAddr>,<mask>

[…]]

OK

Parameter

See Write Command

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Write Command

AT+CIPFLT=<actio

n

>[,<item>][,

<ipAddr>,<mask>]

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<action> 0 Remove the rule specified by <item>.

<item> must be given.

1 Add the rule specified by <item>.

If <item> is not given, it can find an empty item

automatically. <ipAddr> and <mask> must be given.

2 Delete all of rules

<item> The item of IP filter rule

1-20

<ipAddr> Remote IP address,string type.

It can be any valid IP

address in the format of ”xxx.xxx.xxx.xxx”

<mask> Mask to be applied to the<ipAddr>,string type.

It can be any valid IP address mask in the

format of ”xxx.xxx.xxx.xxx”

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l When a packet comes from the IP address <coming_IP>, All rules

will be scanned to match the following criterion:

<coming_IP> & <mask> = <ipAddr> & <mask>

If the criterion is matched, the IP packet will be accepted and the

rule scan is finished. If the criterion is not matched, the IP packet

will be ignored.

l The rule is stored in non volatile memory.

10.2.4 AT+CIPBEIPING Set the Module to be PING or Not

AT+CIPBEIPING Set the Module to be PING or Not

Test Command

AT+CIPBEIPING=

?

Response

+CIPBEIPING: (0,1)

OK

Parameters

See Write Command

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Read Command

AT+CIPBEIPING?

Response

+CIPBEIPING: <mode>

OK

Parameters

See Write Command

Write Command

AT+CIPBEIPING=

<

mode>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<mode> 0 Disable the module to be PING.

1 Enable the module to be PING.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l If the user want the module can be PING by other device, the user

must excute the AT+CIPBEIPING=1 before the module is PING.

l Part of the projects supported by this AT command, please refer to

chapter 21 for details.

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11 AT Commands for HTTP Application

SIM800 series has an embedded TCP/IP stack that is driven by AT commands and enables the

host application to easily access the Internet HTTP service. This chapter is a reference guide to

all the AT commands and responses defined to use with the TCP/IP stack in HTTP Service.

11.1 Overview

Command Description

AT+HTTPINIT Initialize HTTP service

AT+HTTPTERM Terminate HTTP service

AT+HTTPPARA Set HTTP parameters value

AT+HTTPDATA Input HTTP data

AT+HTTPACTION

HTTP method action

AT+HTTPREAD Read the HTTP server response

AT+HTTPSCONT Save HTTP application context

AT+HTTPSTATUS Read HTTP status

AT+HTTPHEAD Read the HTTP header information of server response

11.2 Detailed Descriptions of Commands

11.2.1 AT+HTTPINIT Initialize HTTP Service

AT+HTTPINIT Initialize HTTP Service

Test Command

AT+HTTPINIT=

?

Response

OK

Execution

Command

AT+HTTPINIT

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

HTTPINIT should first be executed to initialize the HTTP service.

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11.2.2 AT+HTTPTERM Terminate HTTP Service

AT+HTTPTERM Terminate HTTP Service

Test Command

AT+HTTPTER

M=?

Response

OK

Execution

command

AT+HTTPTER

M

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

11.2.3 AT+HTTPPARA Set HTTP Parameters Value

AT+HTTPPARA Set HTTP Parameters Value

Test Command

AT+HTTPPARA

=?

Response

+HTTPPARA: "HTTPParamTag","HTTPParmValue"

OK

Parameters

See Write Command

Read Command

AT+HTTPPARA

?

Response

+HTTPPARA:

OK

Parameters

See Write Command

Write Command

AT+HTTPPARA

=<HTTPParamT

ag>,<HTTPPara

mValue>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

"CID"

HTTP Parameter

(Mandatory Parameter) Bearer profile identifier

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"URL"

"UA"

"PROIP"

"PROPORT"

"REDIR"

"BREAK"

"BREAKEND"

"TIMEOUT"

"CONTENT"

"USERDATA"

(Mandatory Parameter) HTTP client URL

"http://'server'/'path':'tcpPort' "

"server": FQDN or IP-address

"path": path of file or directory

"tcpPort": default value is 80.

Refer to "IETF-RFC 2616".

The user agent string which is set by the

application to identify the mobile. Usually this

parameter is set as operation system and software

version information.

Default value is "SIMCom_MODULE".

The IP address of HTTP proxy server

The port of HTTP proxy server

This flag controls the redirection mechanism of the

SIM800 when it is acting as HTTP client

(numeric). If the server sends a redirect code

(range 30x), the client will automatically send a

new HTTP request when the flag is set to (1).

Default value is 0 (no redirection).

Parameter for HTTP method "GET", used for

resuming broken transfer.

Parameter for HTTP method "GET", used for

resuming broken transfer. which is used together

with "BREAK",

If the value of "BREAKEND" is bigger than

"BREAK", the transfer scope is from "BREAK" to

"BREAKEND".

If the value of "BREAKEND" is smaller than

"BREAK", the transfer scope is from "BREAK" to

the end of the file.

If both "BREAKEND" and "BREAK" are 0, the

resume broken transfer function is disabled.

HTTP session timeout value, scope: 30-

1000

second.

Default value is 120 seconds.

HTTP Parameter value.

Type and supported

content depend on related <HTTPParamTag>.

Used to set the “Content-Type”

field in HTTP

header.

User data

HTTP Parameter value.Typ

e and supported content

depend on related <HTTPParamTag>.

Parameter Saving

NO_SAVE

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Mode

Max Response

Time

-

Reference

Note

Not all the HTTP Server supports "BREAK" and "BREAKEND"

parameters

11.2.4 AT+HTTPDATA Input HTTP Data

AT+HTTPDATA Input HTTP Data

Test Command

AT+HTTPDATA

=?

Response

+HTTPDATA: (list of supported <size>s),(list of supported <time>s)

OK

Parameters

See Write Command

Write Command

AT+HTTPDATA

=<size>,<time>

Response

DOWNLOAD

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<size> Size in bytes of the data to POST.

1-319488 (bytes)

0 means delete all the content.

<time> 1000-120000 (millisecond)

Maximum time in milliseconds to

input data.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

It is strongly recommended to set enough time to input all data

with the

length of <size>.

11.2.5 AT+HTTPACTION HTTP Method Action

AT+HTTPACTION HTTP Method Action

Test Command

AT+HTTPACTI

ON=?

Response

+HTTPACTION: (0-3)

OK

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Parameters

See Write Command

Write Command

AT+HTTPACTI

ON=<Method>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Unsolicited Result Code

+HTTPACTION: <Method>,<StatusCode>,<DataLen>

Parameters

<Method> HTTP method specification:

0 GET

1 POST

2 HEAD

3 DELETE

<StatusCode> HTTP Status Code responded

by remote server, it

identifier refer to HTTP1.1(RFC2616)

100 Continue

101 Switching Protocols

200 OK

201 Created

202 Accepted

203 Non-Authoritative Information

204 No Content

205 Reset Content

206 Partial Content

300 Multiple Choices

301 Moved Permanently

302 Found

303 See Other

304 Not Modified

305 Use Proxy

307 Temporary Redirect

400 Bad Request

401 Unauthorized

402 Payment Required

403 Forbidden

404 Not Found

405 Method Not Allowed

406 Not Acceptable

407 Proxy Authentication Required

408 Request Time-out

409 Conflict

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410 Gone

411 Length Required

412 Precondition Failed

413 Request Entity Too Large

414 Request-URI Too Large

415 Unsupported Media Type

416 Requested range not satisfiable

417 Expectation Failed

500 Internal Server Error

501 Not Implemented

502 Bad Gateway

503 Service Unavailable

504 Gateway Time-out

505 HTTP Version not supported

600 Not HTTP PDU

601 Network Error

602 No memory

603 DNS Error

604 Stack Busy

<DataLen> The length of data got

Parameter Saving

Mode

NO_SAVE

Max Response

Time

About 5 seconds in test, dependence on network status and the size of

request website

Reference

Note

11.2.6 AT+HTTPREAD Read the HTTP Server Response

AT+HTTPREAD Read the HTTP Server Response

Test Command

AT+HTTPREA

D=?

Response

+HTTPREAD: (list of supported <start_address>s),(list of supported

<byte_size>s)

OK

Parameters

See Write Command

Write Command

AT+HTTPREA

D=<start_addres

s>,<byte_size>

Response

+HTTPREAD: <date_len>

<data>

OK

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Read data when AT+HTTPACTION=0 or AT+HTTPDATA is executed.

If<byte_size> is bigger than the data size received, module will only return

actual data size.

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<data> Data from HTTP server or user input.

<start_address> The starting point for data output.

0-319488 (bytes)

<byte_size> The length for data output.

1-319488 (bytes)

<data_len> The actual length for data output.

Execution

Command

AT+HTTPREA

D

Response

+HTTPREAD:<date_len>

<data>

OK

Read all data when AT+HTTPACTION=0 or AT+HTTPDATA is executed.

If error is related to ME functionality:

+CME ERROR: <err>

Pa

rameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

11.2.7 AT+HTTPSCONT Save HTTP Application Context

AT+HTTPSCONT Save HTTP Application Context

Read Command

AT+HTTPSCON

T?

Response

TA returns HTTP Application Context, which consists of the following

AT Command parameters.

+HTTPSCONT:<mode>

CID:<value>

URL: <value>

UA: <value>

PROIP: <value>

PROPORT: <value>

REDIR: <value>

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BREAK: <value>

BREAKEND: <value>

USERDATA: <value>

OK

Parameters

<mode> 0 Saved, the value from NVRAM

1 Unsaved, the value from RAM

For other parameters, see the related command.

Execution

Command

AT+HTTPSCON

T

Response

TA saves HTTP Application Context which consists of following AT

Command parameters, and when system is rebooted, the parameters will

be loaded automatically.

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

This command can only be used after run AT+HTTPINIT.

11.2.8 AT+HTTPSTATUS Read HTTP Status

AT+HTTPSTATUS Read HTTP Status

Test Command

AT+HTTPSTAT

US=?

Response

OK

Read Command

AT+HTTPSTAT

US?

Response

+HTTPSTATUS: <mode>,<status>,<finish>,<remain>

OK

If error is related to ME functionality:

+CME ERROR: <err>

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Parameters:

<mode>

GET

POST

HEAD

0 idle

1 receiving

2 sending

The amount of data which have been transmitted

The amount of data remaining to be sent or received

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

11.2.9 AT+HTTPHEAD Read the HTTP Header Information of Server Response

AT+HTTPHEAD Read the HTTP Header Information of Server Response

Test Command

AT+HTTPHEAD

=?

Response

OK

Execution

Command

AT+HTTPHEAD

Response

+ HTTPHEAD: <date_len>

<data>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<data_len> The actual length for http header data output

<data> Data from HTTP server

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

Read header data when AT+HTTPACTION=0 executed.

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12 AT Commands for FTP Application

SIM800 series has an embedded TCP/IP stack that is driven by AT commands and enables the

host application to easily access the Internet FTP service. This chapter is a reference guide to all

the AT commands and responses defined for using with the TCP/IP stack in FTP Service.

12.1 Overview

Command Description

AT+FTPPORT Set FTP control port

AT+FTPMODE Set active or passive FTP mode

AT+FTPTYPE Set the type of data to be transferred

AT+FTPPUTOPT Set FTP put type

AT+FTPCID Set FTP bearer profile identifier

AT+FTPREST Set resume broken download

AT+FTPSERV Set FTP server address

AT+FTPUN Set FTP user name

AT+FTPPW Set FTP password

AT+FTPGETNAME Set download file name

AT+FTPGETPATH Set download file path

AT+FTPPUTNAME Set upload file name

AT+FTPPUTPATH Set upload file path

AT+FTPGET Download file

AT+FTPPUT Set upload file

AT+FTPSCONT Save FTP application context

AT+FTPDELE Delete specified file in FTP server

AT+FTPSIZE Get the size of specified file in FTP server

AT+FTPSTATE Get the FTP state

AT+FTPEXTPUT Extend upload file

AT+FTPMKD Make directory on the remote machine

AT+FTPRMD Remove directory on the remote machine

AT+FTPLIST List contents of directory on the remote machine

AT+FTPGETTOFS Download file and save in file system

AT+FTPPUTFRMFS Upload file from file system

AT+FTPEXTGET Extend download file

AT+FTPFILEPUT Load file in RAM from file system then upload with FTPPUT

AT+FTPQUIT Quit current FTP session

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12.2 Detailed Descriptions of Commands

12.2.1 AT+FTPPORT Set FTP Control Port

AT+FTPPORT Set FTP Control Port

Test Command

AT+FTPPORT=

?

Response

OK

Read Command

AT+FTPPORT?

Response

+FTPPORT: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPPORT=

<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> The value of FTP Control port, from 1 to 65535.

Default value is 21

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

Numbers ab

ove 65535 are illegal as the port identification fields are 16 bits

long in the TCP header.

12.2.2 AT+FTPMODE Set Active or Passive FTP Mode

AT+FTPMODE Set Active or Passive FTP Mode

Test Command

AT+FTPMODE

=?

Response

OK

Read Command

AT+FTPMODE?

Response

+FTPMODE: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPMODE

Response

OK

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=<value> If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> 0 Active FTP mode

1 Passive FTP mode

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.3 AT+FTPTYPE Set the Type of Data to Be Transferred

AT+FTPTYPE Set the Type of Data to Be Transferred

Test Command

AT+FTPTYPE=

?

Response

OK

Read Command

AT+FTPTYPE?

Response

+FTPTYPE: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPTYPE=

<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> "A" For FTP ASCII sessions

"I" For FTP Binary sessions

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

When this value is set to A, all the data sent by the stack

to the FTP server is

made of 7 bits characters (NVT-

ASCII: the MSB is set to 0). As a

consequence binary data containing 8 bits characters will be corrupted

during the transfer if the FTPTYPE is set to A.

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12.2.4 AT+FTPPUTOPT Set FTP Put Type

AT+FTPPUTOPT Set FTP Put Type

Test Command

AT+FTPPUTOP

T=?

Response

OK

Read Command

AT+FTPPUTOP

T?

Response

+FTPPUTOPT: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPPUTOP

T=<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> "APPE" For appending file

"STOU" For storing unique file

"STOR" For storing file

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.5 AT+FTPCID Set FTP Bearer Profile Identifier

AT+FTPCID Set FTP Bearer Profile Identifier

Test Command

AT+FTPCID=?

Response

OK

Parameters

See Write Command

Read Command

AT+FTPCID?

Response

+FTPCID: <value>

OK

Parameter

See Write Command

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Write Command

AT+FTPCID=<v

alue>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> Bearer profile identifier refer to AT+SAPBR

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.6 AT+FTPREST Set Resume Broken Download

AT+FTPREST Set Resume Broken Download

Test Command

AT+FTPREST=

?

Response

OK

Read Command

AT+FTPREST?

Response

+FTPREST: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPREST=

<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> Broken point to be resumed

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.7 AT+FTPSERV Set FTP Server Address

AT+FTPSERV Set FTP Server Address

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Test Command

AT+FTPSERV=

?

Response

OK

Read Command

AT+FTPSERV?

Response

+FTPSERV: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPSERV=

<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> 32-bit number in dotted-

decimal notation (i.e.

xxx.xxx.xxx.xxx) or alphanumeric ASCII text string up to 49

characters if

DNS is available

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.8 AT+FTPUN Set FTP User Name

AT+FTPUN Set FTP User Name

Test Command

AT+FTPUN=?

Response

OK

Parameters

See Write Command

Read Command

AT+FTPUN?

Response

+FTPUN: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPUN=<va

lue>

Response

OK

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If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> Alphanumeric ASCII text string up to 49 characters.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.9 AT+FTPPW Set FTP Password

AT+FTPPW Set FTP Password

Test Command

AT+FTPPW=?

Response

OK

Parameters

See Write Command

Read Command

AT+FTPPW?

Response

+FTPPW: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPPW=<v

alue>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter

<value> Alphanumeric ASCII text string up to 49 characters.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

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12.2.10 AT+FTPGETNAME Set Download File Name

AT+FTPGETNAME Set Download File Name

Test Command

AT+FTPGETNA

ME=?

Response

OK

Read Command

AT+FTPGETNA

ME?

Response

+FTPGETNAME: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPGETNA

ME=<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> Alphanumeric ASCII text string up to 99 characters

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.11 AT+FTPGETPATH Set Download File Path

AT+FTPGETPATH Set Download File Path

Test Command

AT+FTPGETPA

TH=?

Response

OK

Read Command

AT+FTPGETPA

TH?

Response

+FTPGETPATH: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPGETPA

TH=<value>

Response

OK

If error is related to ME functionality:

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+CME ERROR: <err>

Parameters

<value> Alphanumeric ASCII text string up to 255 characters

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.12 AT+FTPPUTNAME Set Upload File Name

AT+FTPPUTNAME Set Upload File Name

Test Command

AT+FTPPUTNA

ME=?

Response

OK

Read Command

AT+FTPPUTNA

ME?

Response

+FTPPUTNAME: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPPUTNA

ME=<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> Alphanumeric ASCII text string up to 99 characters

Paramet

er Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.13 AT+FTPPUTPATH Set Upload File Path

AT+FTPPUTPATH Set Upload File Path

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Test Command

AT+FTPPUTPA

TH=?

Response

OK

Read Command

AT+FTPPUTPA

TH?

Response

+FTPPUTPATH: <value>

OK

Parameters

See Write Command

Write Command

AT+FTPPUTPA

TH=<value>

Response

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<value> Alphanumeric ASCII text string up to 255 characters

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.14 AT+FTPGET Download File

AT+FTPGET Download File

Test Command

AT+FTPGET=?

Response

OK

Write Command

AT+FTPGET=<

mode>[,<reqleng

th>]

Response

If mode is 1 and it is a successful FTP get session:

OK

+FTPGET: 1,1

If data transfer finished:

+FTPGET: 1,0

If mode is 1 and it is a failed FTP get session:

OK

+FTPGET: 1,<error>

If mode is 2:

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+FTPGET: 2,<cnflength>

012345678…

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 1 For opening FTP get session

2 For reading FTP download data.

<reqlength> Requested number of data bytes (1-1460)to be read

<cnflength> Confirmed number of data bytes to be read, which may be less

than <length>. 0 indicates that no data can be read.

<error> 61 Net error

62 DNS error

63 Connect error

64 Timeout

65 Server error

66 Operation not allow

70 Replay error

71 User error

72 Password error

73 Type error

74 Rest error

75 Passive error

76 Active error

77 Operate error

78 Upload error

79 Download error

86 Manual quit

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

When "+FTPGET: 1,1" is shown,

then use

"AT+FTPGET=2,<reqlength>"

to read data. If the module still has

unread data, "+FTPGET: 1,1" will be shown again in a certain time.

12.2.15 AT+FTPPUT Set Upload File

AT+FTPPUT Set Upload File

Test Command

AT+FTPPUT=?

Response

OK

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Write Command

AT+FTPPUT=<

mode>[,<reqleng

th>]

Response

If mode is 1 and it is a successful FTP get session:

OK

+FTPPUT: 1,1,<maxlength>

If mode is 1 and it is a failed FTP get session:

OK

+FTPPUT: 1,<error>

If mode is 2 and <reqlength> is not 0

+FTPPUT: 2,<cnflength>

…… //Input data

OK

If mode is 2 and <reqlength> is 0,

it will respond OK, and FTP session will

be closed

OK

If data transfer finished.

+FTPPUT: 1,0

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 1 For opening FTP put session

2 For writing FTP upload data.

<reqlength> Requested number of data bytes(0-<maxlength>) to be

transmitted

<cnflength> Confirmed number of data bytes to be transmitted

<maxlength> The max length of data can be sent at a time. It depends on

the network status.

<error> See "AT+FTPGET"

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

When "+FTPPUT: 1,1,<maxlength>"

is shown, then use

"AT+FTPPUT=2, <reqlength>" to write data.

12.2.16 AT+FTPSCONT Save FTP Application Context

AT+FTPSCONT Save FTP Application Context

Read Command Response

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AT+FTPSCONT

?

TA returns FTP Application Context, which consists of the following AT

Command parameters.

+FTPSCONT:<mode>

+FTPSERV: <value>

+FTPPORT: <value>

+FTPUN: <value>

+FTPPW: <value>

+FTPCID: <value>

+FTPMODE: <value>

+FTPTYPE: <value>

+FTPPUTOPT: <value>

+FTPREST: <value>

+FTPGETNAME: <value>

+FTPGETPATH: <value>

+FTPPUTNAME: <value>

+FTPPUTPATH: <value>

+FTPTIMEOUT: <value>

OK

Parameters

<mode> 0 Saved, the value from NVRAM

1 Unsaved, the value from RAM

For other parameters, see the related command.

Execution

Command

AT+FTPSCONT

Response

TA saves FTP Application Context which consists of following AT

Command parameters, and when system is rebooted, the parameters will

be loaded automatically.

OK

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.17 AT+FTPDELE Delete Specified File in FTP Server

AT+FTPDELE Delete Specified File in FTP Server

Test Command

AT+FTPDELE=?

Response

OK

Parameters

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Execution

Command

AT+FTPDELE

Response

If successed:

OK

+FTPDELE: 1,0

If failed:

OK

+FTPDELE: 1,<error>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<error> See "AT+FTPGET"

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

The file to be deleted is specified by the "AT+FTPGETNAME"

and

"AT+FTPGETPATH" commands.

12.2.18 AT+FTPSIZE Get the Size of Specified File in FTP Server

AT+FTPSIZE Get the Size of Specified File in FTP Server

Test Command

AT+FTPSIZE=?

Response

OK

Parameters

Execution

Command

AT+FTPSIZE

Response

If successed:

OK

+FTPSIZE: 1,0,<size>

If failed:

OK

+FTPSIZE: 1,<error>,<0>

If error is related to ME functionality:

+CME ERROR: <err>

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Parameters

<error> See "AT+FTPGET"

<size> The file size. Unit: byte

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

The file is specified by the "AT+FTPGETNAME"

and

"AT+FTPGETPATH" commands.

12.2.19 AT+FTPSTATE Get the FTP State

AT+FTPSTATE Get the FTP State

Test Command

AT+FTPSTATE=?

Response

OK

Parameters

Execution

Command

AT+FTPSTATE

Response

+FTPSTATE: <state>

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<state>

0 Idle

1 In the FTP session, including FTPGET, FTPPUT, FTPDELE

and FTPSIZE operation.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

12.2.20 AT+FTPEXTPUT Extend Upload File

AT+FTPEXTPUT Extend Upload File

Test Command

AT+FTPEXTPUT

=?

Response

OK

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Write Command

AT+FTPEXTPUT

=<mode>[,<pos>,<

len>,<timeout>]

Response

If mode is 0 or 1

OK

If mode is 2

+FTPEXTPUT: <pos>,<len>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode>

0 use default FTPPUT method

1 use extend FTPPUT method

2 download data which need to PUT to RAM

<pos> data offset address 0-300k

<len> data length 0-300k

<timeout> timeout value of serial port 1000ms-1000000ms

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

When extend FTPPUT mode is activated, input data then execute

"AT+FTPPUT=1"

to transmit, after session is complete, if successful, it

returns "+FTPPUT: 1,0", otherwise it returns "+FTPPUT: 1,<error>"

,

<error> see "AT+FTPGET".

12.2.21 AT+FTPMKD Make Directory on the Remote Machine

AT+FTPMKD Make Directory on the Remote Machine

Test Command

AT+FTPMKD=?

Response

OK

Execution

Command

AT+FTPMKD

Response

If success:

OK

+FTPMKD: 1,0

If failed:

OK

+FTPMKD: 1,<error>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<error> See "AT+FTPGET"

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Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

The created folder is specified by the "AT+FTPGETPATH" command.

12.2.22 AT+FTPRMD Remove Directory on the Remote Machine

AT+FTPRMD Remove Directory on the Remote Machine

Test Command

AT+FTPRMD=?

Response

OK

Execution

Command

AT+FTPRMD

Response

If success:

OK

+FTPRMD: 1,0

If failed:

OK

+FTPRMD: 1,<error>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<error> See "AT+FTPGET"

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

The removed folder is specified by the "AT+FTPGETPATH" command.

12.2.23 AT+FTPLIST List Contents of Directory on the Remote Machine

AT+FTPLIST List Contents of Directory on the Remote Machine

Test Command

AT+FTPLIST=?

Response

OK

Write Command

AT+FTPLIST=<m

ode>[,<reqlength>

]

Response

If mode is 1 and it is a successful FTP get session:

OK

+FTPLIST: 1,1

If data transfer is finished:

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+FTPLIST: 1,0

If mode is 1 and it is a failed FTP get session:

OK

+FTPLIST: 1,<error>

If mode is 2:

+FTPLIST: 2,<cnflength>

012345678…

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode>

1 For opening FTP get file list session

2 For reading FTP file list

<reqlength> Requested number of data bytes (1-1460) to be read

<cnflength> Confirmed number of data bytes to be read, which may be

less than <reqlength>. 0 indicates that no data can be read.

<error> See "AT+FTPGET"

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

When "+FTPLIST: 1,1" is shown, "AT+FTPLIST=2,<reqlength>"

can

be used to read data. If the module still has unread data, "

+FTPLIST:

1,1" will be shown again in a certain time.

12.2.24 AT+FTPGETTOFS Download File and Save in File System

AT+FTPGETTOFS Download File and Save in File System

Test Command

AT+FTPGETTO

FS=?

Response

OK

Read Command

AT+FTPGETTO

FS?

Response

+FTPGETTOFS: <status>[,<receivedLength>,<writeLength>]

OK

Parameters

<status> The process status of downloading and saving File to File System

through FTP

0 Not in the process

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1 During the process

<receivedLength> The data length received from FTP

<writeLength> The data length saved in File System

Write Command

AT+FTPGETTO

FS=<loc>,<filena

me>[,<num>,<tim

e>]

Response

If it is a successful FTP get session:

OK

If data transfer finished.

+FTPGETTOFS: 0,<totalLength>

If it is a failed FTP get session:

OK

+FTPGETTOFS: <error>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<loc> file saved in ROM or SD card.

0 Saved in ROM, file will be saved in "Disk1:\user\ftp"

1 Saved in SD card, file will be saved in "Disk2:\ftp"

Note: The local drive "Disk1" or SD drive "Disk2" can be got by

AT+FSDRIVE.

<filename> File name. Alphanumeric ASCII text string up to 64

characters

<num> Number of automatic reconnect times, from 0 to 255.

Default value is 3.

<time> Wait time before module start automatic reconnect, from 0 to 60

seconds.

Default value is 5 seconds.

<totalLength> The total length of data bytes have been saved

<error> 85 An error related with file system.

Other errors please see FTPGET.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

l Automatic reconnection will start at break point.

l File will be overwritten if you start this function twice with a same

file name.

12.2.25 AT+FTPPUTFRMFS Upload File from File System.

AT+FTPPUTFRMFS Upload File from File System

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Test Command

AT+FTPPUTFR

MFS=?

Response

OK

Read Command

AT+FTPPUTFR

MFS?

Response

+FTPPUTFRMFS: <status>[,<putLength>]

OK

Parameters

<status> The process status of uploading File from File System through

FTP

0 Not in the process

1 During the process

<putLength> The data length uploaded from File System

Write Command

AT+FTPPUTFR

MFS=<filepath>[,

<num>,<time>]

Response

If it is a successful FTP put session:

OK

If data transfer finished.

+FTPPUTFRMFS: 0,<totalLength>

If it is a failed FTP put session:

OK

+FTPPUTFRMFS: <error>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<filepath> File path. Alphanumeric ASCII text string up to 128 characters

<num> Number of automatic reconnect times, from 0 to 255.

Default value is 3.

<time> Wait time before module start automatic reconnect, from 0 to 60

seconds.

Default value is 5 seconds.

<totalLength> The data length uploaded from File System

<error> 85 An error related with file system.

Other errors pls see FTPGET.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

Automatic reconnect will start at break point.

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12.2.26 AT+FTPEXTGET Extend Download File

AT+FTPEXTGET Extend Download File

Test Command

AT+FTPEXTGE

T=?

Response

OK

Read Command

AT+FTPEXTGE

T?

Response

+FTPEXTGET: <status>[,<receivedLength>]

OK

Parameters

<status> Whether run FTPEXTGET or not

0 Not run FTPEXTGET

1 Run FTPEXTGET

<receivedLength> Length module has received from FTP server

Write Command

1)if mode is 0 or 1

AT+FTPEXTGE

T=<mode>

2)if mode is 2

AT+FTPEXTGE

T=<mode>,<filen

ame>

3)if mode is 3

AT+FTPEXTGE

T=<mode>,<read

Position>,<readLe

ngth>

Response

If mode is 0

OK

If it is a successful FTP get session in mode 1:

OK

If data transfer finished in mode 1

+FTPEXTGET: 1,0

If it is a failed FTP get session in mode 1:

OK

+FTPEXTGET: 1,<error>

If mode is 2:

+FTPEXTGET: 2,<totalLength>

OK

If mode is 3:

+FTPEXTGET: 3,<outputLength>

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode>

0 Use default FTPGET method

1 Start extend FTPGET method

2 Save download data to filesystem

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3 Output download data

<filename> File name to write data in mode 2. Alphanumeric ASCII text

string up to 64 characters.

<readPosition> Position start read data in mode 3.

<readLength> Read length in mode 3

<totalLength> The total length of data bytes have been download

<outputLength> Total length will be output from serial port

<error> 85 An error related with file system.

Other errors pls see FTPGET.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

Can not use this function when set FTPEXTPUT mode 1

12.2.27 AT+FTPFILEPUT Load File in RAM from File System then Upolad with

FTPPUT

AT+FTPFILEPUT Load File in RAM from File System then Upload with FTPPUT

Test Command

AT+FTPFILEPU

T=?

Response

OK

Write Command

AT+FTPFILEPU

T=<mode>[,filena

me]

Response

If success:

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode>

0 Not use FTPFILEPUT method

1 Use FTPFILEPUT method

<filename> File name to write data in mode 1. Alphanumeric ASCII text

string up to 64 characters.

<error> 85 An error related with file system.

Other errors pls see FTPGET.

Parameter Saving

Mode

NO_SAVE

Max Response

Time

75 seconds(In case no response is received from server)

Reference

Note

This function can not be used when FTPEXTPUT mode has been set as 1.

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12.2.28 AT+FTPQUIT Quit Current FTP Session

AT+FTPQUIT Quit Current FTP Session

Test Command

AT+FTPQUIT=?

Response

OK

Execution

Command

AT+FTPQUIT

Response

If success:

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference Note

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13 AT Commands for GSM Location Application

SIM800 series support GSM location operation.

13.1 Overview

Command Description

AT+CIPGSMLOC GSM location and time

13.2 Detailed Descriptions of Commands

13.2.1 AT+CIPGSMLOC GSM Location and Time

AT+CIPGSMLOC GSM Location and Time

Test Command

AT+CIPGSMLOC=

?

Response

+CIPGSMLOC: (1,2),(1-3)

OK

Parameters

See Write Command

Write Command

AT+CIPGSMLOC=

Response

If <type>=1:

+CIPGSMLOC:

<locationcode>[,<longitude>,<latitude>,<date>,<time>]

OK

If <type>=2:

+CIPGSMLOC: <locationcode>[,<date>,<time>]

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<type> 1 View the longitude, latitude and time

2 View time

<cid> network parameters, refer to AT+SAPBR

<locationcode> 0 Success

If the operation failed, the location code is not 0, such as:

404 Not Found

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408 Request Time-out

601 Network Error

602 No memory

603 DNS Error

604 Stack Busy

65535 Other Error

<longitude> Current longitude in degrees

<latitude> Current latitude in degrees

<date> Format is YYYY/MM/DD, the time zone is GMT E.g.

2011/01/26

<time> Format is hh/mm/ss,the time zone is GMT.E.g. 06:10:46

Parameter Saving

Mode

NO_SAVE

Max Response Time

60 seconds

Reference

Note

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14 AT Commands for Email Application

1. SIM800 series supports to send an Email with an attachment via SMTP protocol. It

also supports carbon copy (abbreviated Cc:) recipient and blind carbon copy

(abbreviated Bcc:) recipient.

2. SIM800 series supports to retrieve and delete the Email via POP3 protocol, the Email

may be with attachments.

3. SIM800 series supports all of POP3 commands but APOP. By these POP3 commands,

you can get the specific Email’s size and unique-id.

4. SIM800 series does not support that SMTP and POP3 operations are executed at the

same time.

14.1 Overview

Command Description

AT+EMAILCID Set Email bearer profile identifier

AT+EMAILTO Set timeout value of SMTP/POP3 server response

AT+SMTPSRV Set SMTP server address and port

AT+SMTPAUTH Set user name and password for SMTP authentication

AT+SMTPFROM Set sender address and name

AT+SMTPRCPT Set the Email recipient(to/cc/bcc) address and name

AT+SMTPSUB Set the Email subject

AT+SMTPBODY Set the Email body

AT+SMTPFILE Set the Email attachment

AT+SMTPSEND Send the Email

AT+SMTPFT Transfer the Email attachment

AT+SMTPCS Set the Email charset

AT+POP3SRV Set POP3 server and account

AT+POP3IN Log in POP3 server

AT+POP3NUM Get Email number and total size

AT+POP3LIST Get the specific Email size

AT+POP3UIDL Get the specific Email unique-id

AT+POP3CMD Get multi-line response

AT+POP3READ Read multi-line response

AT+POP3DEL Mark the specific Email to delete

AT+POP3RSET Unmark the emails that be marked as deleted

AT+POP3OUT Log out POP3 server

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14.2 Detailed Descriptions of Commands

14.2.1 AT+EMAILCID Set Email Bearer Profile Identifier

AT+EMAILCID Set Email Bearer Profile Identifier

Test Command

AT+EMAILCID=?

Response

+EMAILCID: (range of supported <cid>s)

OK

Parameters

See Write Command

Read Command

AT+EMAILCID?

Response

+EMAILCID: <cid>

OK

Parameters

See Write Command

Write Command

AT+EMAILCID=<c

id>

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<cid> bearer profile identifier refer to AT+SAPBR

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.2 AT+EMAILTO Set Timeout Value of SMTP/POP3 Server Response

AT+EMAILTO Set Timeout Value of SMTP/POP3 Server Response

Test Command

AT+EMAILTO=?

Response

+EMAILTO: (range of supported <timeout>s)

OK

Parameters

See Write Command

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Read Command

AT+EMAILTO?

Response

+EMAILTO: <timeout>

OK

Parameters

See Write Command

Write Command

AT+EMAILTO=<ti

meout

>

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<timeout> The timeout value of SMTP/POP3 server response,

in 1

second unit.

10-120 Default: 30(seconds)

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.3 AT+SMTPSRV Set SMTP Server Address and Port

AT+SMTPSRV Set SMTP Server Address and Port

Test Command

AT+SMTPSRV=?

Response

+SMTPSRV: <smtpServerLength>,(range of supported <smtpPort>s)

OK

Parameters

See Write Command

Read Command

AT+SMTPSRV?

Response

+SMTPSRV: <smtpServer>,<smtpPort>

OK

Parameter

See Write Command

Write Command

AT+SMTPSRV=

<smtpServer>[,<sm

tpPort>]

Response

OK

If error is related to ME functionality:

ERROR

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Parameters

<smtpServer> SMTP server address, string type.

This parameter

can be either:

- IP address in the format: xxx.xxx.xxx.xxx

- Host name to be solved with a DNS query

<smtpPort> The SMTP port

1-65535 Default: 25

<smtpServerLength> The max length of <smtpServer>

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.4 AT+SMTPAUTH Set User Name and Password for SMTP Authentication

AT+SMTPAUTH Set User Name and Password for SMTP Authentication

Test Command

AT+SMTPAUTH=?

Response

+SMTPAUTH: (range of supported<authType>s),<userNameLengt

h>,<passwordLength>

OK

Parameters

See Write Command

Read Command

AT+SMTPAUTH?

Response

+SMTPAUTH: <authType>,<userName>,<password>

OK

Parameters

See Write Command

Write Command

AT+SMTPAUTH=<

authType>[,<userNa

me>,<password>]

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<authType> The type of SMTP authentication

0 SMTP server does not request authentication.

<userName> and <password> must not be given.

1 SMTP server requests authentication

<userName> The user name for SMTP authentication.

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<userNameLength> The max length of <userName>.

<password> The password for SMTP authentication.

<passwordLength> The max length of <password>.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.5 AT+SMTPFROM Set Sender Address and Name

AT+SMTPFROM Set Sender Address and Name

Test Command

AT+SMTPFROM=

?

Response

+SMTPFROM: <senderAddressLength>,<senderNameLength>

OK

Parameters

See Write Command

Read Command

AT+SMTPFROM?

Response

+SMTPFROM: <senderAddress>,<senderName>

OK

Parameter

See Write Command

Write Command

AT+SMTPFROM=

<

senderAddress>[,<s

enderName>

]

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<senderAddress> The Email sender address,string type.

<senderAddressLength> The max length of <senderAddress>

<senderName> The Email sender name,string type.

<senderNameLength> The max length of <senderName>

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

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14.2.6 AT+SMTPRCPT Set the Email Recipient(TO/CC/BCC) Address and Name

AT+SMTPRCPT Set the Email Recipient(TO/CC/BCC) Address and Name

Test Command

AT+SMTPRCPT=?

Response

+SMTPRCPT: (range of supported <rcptType>s),(range of supported

OK

Parameters

See Write Command

Read Command

AT+SMTPRCPT?

Response

[+SMTPRCPT: <rcptType>,<index>,<rcptAddress>,<rcptName>

[<CR><LF>+SMTPRCPT: <rcptType>,<index>,<rcptAddress>,

<rcptName>[…]]]

OK

Parameter

See Write Command

Write Command

AT+SMTPRCPT=<

rcptType>[,<index>

[,<rcptAddress>[,<r

cptName>]]]

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<rcptType> The type of recipient, the types of TO and CC are used

to

construct e-mail header in the field:”To:” or “Cc:”.

0 TO, Normal Recipient.

1 CC, Carbon Copy recipient.

2 BCC, Blind Carbon Copy recipient.

<index> Index of the type of recipient, decimal format

<rcptAddress> The Email recipient address.

<rcptName> The Email recipient name.

<rcptAddressLength> The max length of <rcptAddress>.

<rcptNameLength> The max length of <rcptName>.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l If only <rcptType> is given, it will delete all items of <rcptType>.

l If only <rcptType> and <index> are given, it will delete the

<index> item of <rcptType>.

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14.2.7 AT+SMTPSUB Set the Email Subject

AT+SMTPSUB Set the Email Subject

Test Command

AT+SMTPSUB=?

Response

+SMTPSUB: <subjectLength>

OK

Parameters

See Write Command

Read Command

AT+SMTPSUB?

Response

+SMTPSUB: <subject>

OK

Parameter

See Write Command

Write Command

AT+SMTPSUB=<su

bject>

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<subject> The Email subject, string type. It will be present in the

header of the Email sent by SMTP client in the field:

"Subject:"

<subjectLength> The max length of <subject>.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

If the Email charset is not ASCII,<subject> must be in hexadecimal

format.

14.2.8 AT+SMTPBODY Set the Email Body

AT+SMTPBODY Set the Email Body

Test Command

AT+SMTPBODY=?

Response

+SMTPBODY: <bodyLength>

OK

Parameters

See Write Command

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Write Command

AT+SMTPBODY=<

length>

,then

type data as

Email body.

W

hen

body

’s length

equal

length, command is

over!

Response

DOWNLOAD

OK

If error is related to ME functionality:

ERROR

Parameters

<length> The length of Email body.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l If the Email charset is not ASCII, the body of Email must be in

hexadecimal format.

l After URC string "DOWNLOAD", User can input email’s body.

14.2.9 AT+SMTPFILE Set the Email Attachment

AT+SMTPFILE Set the Email Attachment

Test Command

AT+SMTPFILE=?

Response

+SMTPFILE: (range of <fileType>s),<fileNameLength>,(range of

<encodeType>s)

OK

Parameters

See Write Command

Read Command

AT+SMTPFILE?

Response

+SMTPFILE: <fileType>,<fileName>,<encodeType>

OK

Parameter

See Write Command

Write Command

AT+SMTPFILE=<fi

leType>[,<fileName>

,<encodeType>]

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<fileType> The type of the Email attachment.

0 No attachment

1 Attach a txt file

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2 Attach a binary file (bmp, mp3, video…)

<fileName> The name of the Email attachment.

<fileNameLength> The max length of <fileName>.

<encodeType> Content-Transfer-Encoding used for attachment

0 "7bit" means data all represented as short lines of US-

ASCII

data

1 "base64" designed to represent arbitrary s

equences of octets

in a form that need not be humanly readable

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l If a txt file (<fileType>=1) is attached, <encodeType> must be 0.

l If a binary file (<fileType>=2) is attached, <encodeType> must be

1.

14.2.10 AT+SMTPSEND Send the Email

AT+SMTPSEND Send the Email

Test Command

AT+SMTPSEND=?

Response

OK

Parameters

Execution Command

AT+SMTPSEND

Response

OK

If error is related to ME functionality:

ERROR

If send successfully or not, return:

+SMTPSEND: <code>

Parameters

<code> The result of sending Email.

1 The Email has been sent successfully.

61 Network error.

62 DNS resolve error

63 SMTP TCP connection error.

64 Timeout of SMTP server response

65 SMTP server response error

66 Not authentication

67 Authentication failed. SMTP user name or password may

be not right.

68 Bad recipient.

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Param

eter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.11 AT+SMTPFT Transfer the Email Attachment

AT+SMTPFT Transfer the Email Attachment

Test Command

AT+SMTPFT=?

Response

OK

Parameters

See Write Command

Write Command

AT+SMTPFT=<req

Length>

Response

When the URC below is reported, the attachment can be transferred:

+SMTPFT: 1,<maxLength>

If <reqLength> is not 0 and send data successfully:

+SMTPFT: 2,<cnfLength>

...... //Input data

OK

If <reqLength> is not 0 and send data unsuccessfully:

+SMTPFT: 2,<cnfLength>

...... //Input data

ERROR

If <reqLength>

is 0,it indicates that transferring the attachment have

finished:

OK

If error is related to ME functionality:

ERROR

If some error occur:

+SMTPSEND: <code>

Parameters

<reqLength> Requested number of data bytes(0-<maxLength

>) to

be transmitted

<cnfLength> Confirmed number of data bytes to be transmitted

<maxLength> The max length of data can be sent at a time.

It depends

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on the network status.

<code> See AT+SMTPSEND

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

l <reqLength> can not be greater than <maxLength>.

l When "+SMTPFT: 1,<maxLength>" is reported, then use

"AT+SMTPFT=<reqLength>" to send data.

14.2.12 AT+SMTPCS Set the Email Charset

AT+SMTPCS Set the Email Charset

Test Command

AT+SMTPCS=?

Response

+SMTPCS: <charsetLength>

OK

Parameters

See Write Command

Read Command

AT+SMTPCS?

Response

+SMTPCS: <charset>

OK

Parameter

See Write Command

Write Command

AT+SMTPCS=<cha

rset>

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<charset> The Email charset, string type.

It shows which charset

the subject and the body are encoded in. If <charset> is not

ASCII but UTF-8 or other,

the subject and the body must be

in hexadecimal format (e.g. "TEST" should be converted

to

"54455354").

The default charset is ASCII.

<charsetLength> The max length of <charset>.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

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Reference

Note

14.2.13 AT+POP3SRV Set POP3 Server and Account

AT+POP3SRV Set POP3 Server and Account

Test Command

AT+POP3SRV=?

Response

+POP3SRV: <pop3ServerLength>,<userNameLength>,<password-

Length>,(range of supported <pop3Port>s)

OK

Parameters

See Write Command

Read Command

AT+POP3SRV?

Response

+POP3SRV: <pop3Server>,<userName>,<password>,<pop3Port>

OK

Parameters

See Write Command

Write Command

AT+POP3SRV=<po

p3Server>,<userNa

me>,<password>[,<p

op3Port>]

Response

OK

If error is related to ME functionality:

ERROR

Parameters

<pop3Server> POP3 server address, string type.

This parameter can

be either:

- IP address in the format: xxx.xxx.xxx.xxx

- Host name to be solved with a DNS query

<userName> The user name to log in POP3 server, string type.

<password> The password to log in POP3 server, string type.

<pop3Port> The port of POP3 server.

1-65535 Default: 110

<pop3ServerLength> The max length of <pop3Server>.

<userNameLength> The max length of <userName>.

<passwordLength> The max length of <password>.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

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14.2.14 AT+POP3IN Log in POP3 Server

AT+POP3IN Log in POP3 Server

Test Command

AT+POP3IN=?

Response

OK

Parameters

Execution Command

AT+POP3IN

Response

OK

If error is related to ME functionality:

ERROR

If logging in POP3 server or not, return:

+POP3IN: <code>

Parameters

<code> The result of logging in POP3 server

1 Log in POP3 server successfully

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

65 POP3 server response error

66 POP3 server rejects to log in

67 Incorrect user name

68 Incorrect user name or password

69 Timeout of read data

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.15 AT+POP3NUM Get Email Number and Total Size

AT+POP3NUM Get Email Number and Total Size

Test Command

AT+POP3NUM=?

Response

OK

Parameter

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Execution Command

AT+POP3NUM

Response

OK

If error is related to ME functionality:

ERROR

If POP3 server issues a positive response:

+POP3NUM: 1,<totalNumber>,<totalSize>

If POP3 server issues a negative response:

+POP3NUM: 0

If some error occur:

+POP3OUT: <code>

Parameters

<totalNumber> The Email number on the POP3 server, decimal

format.

<totalSize> The total size of all Email and the unit is in byte.

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.16 AT+POP3LIST Get the Specific Email Size

AT+POP3LIST Get the Specific Email Size

Test Command

AT+POP3LIST=?

Response

+POP3LIST: (range of supported <msgNumber>s)

OK

Parameter

See Write Command

Write Command

AT+POP3LIST=<m

sgNumber>

Response

OK

If error is related to ME functionality:

ERROR

If POP3 server issues a positive response:

+POP3LIST: 1,<msgNumber>,<size>

If POP3 server issues a negative response:

+POP3LIST: 0

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If some error occur:

+POP3OUT: <code>

Parameters

<msgNumber> The message number of Email.

<size> The size of Email <msgNumber> and the unit is in byte.

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.17 AT+POP3UIDL Get the Specific Email Unique-id

AT+POP3UIDL Get the Specific Email Unique-id

Test Command

AT+POP3UIDL=?

Response

+POP3UIDL: (range of supported <msgNumber>s)

OK

Parameters

See Write Command

Write Command

AT+POP3UIDL=<

msgNum

ber>

Response

OK

If error is related to ME functionality:

ERROR

If POP3 server issues a positive response:

+POP3UIDL: 1,<msgNumber>,<uid>

If POP3 server issues a negative response:

+POP3UIDL: 0

If some error occur:

+POP3OUT: <code>

Parameters

<msgNumber> The message number of Email .

<UID> The Email unique-id, the unique-

id is an arbitrary

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server-determined string,

consisting of 1 to 70 characters in

the range 0x21 to 0x7E, which uniquely

identifies a message

within a maildrop and which persists across sessions.

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

14.2.18 AT+POP3CMD Get Multi-line Response

AT+POP3CMD Get Multi-line Response

Test Command

AT+POP3CMD=?

Response

+POP3CMD: (range of supported <cmdType>s),(range of supporte

d<msgNumber>s),(range of supported <lineNumber>s)

OK

Parameters

See Write Command

Write Command

AT+POP3CMD=<c

mdType>[,<msgNum

ber>[,lineNumber]]

Response

OK

If error is related to ME functionality:

ERROR

If POP3 server issues a positive response:

+POP3CMD: 1

If POP3 server issues a negative response:

+POP3CMD: 0

If some error occur:

+POP3OUT: <code>

Parameters

<cmdType> The values that supported POP3 user command

1 List command

The "List" command returns a multi-line "scan listing".

For

each message on the maildrop list of the server the POP3

service returns

a line containing the message number and its

size in bytes. A final "dotline"

will be printed at the end of the

"scan listing".

If there are no messages on the maildrop list of

the server, the POP3 service returns a positive response, i.e.

It

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does not issue an error response, but the "scan listing"

will be

empty. In either case,

each scan listing will be finished by

so-called "dotline", i.e. a new line with just a single dot.

<msgNumber> and <lineNumber> must not be given.

2 Uidl command

The "Uidl" command returns a multi-line "unique-

id

Listing".

For each message on the maildrop list of the

Server the POP3 service returns a line containing the

message number and its unique-id. A final "dotline"

will be printed at the end of the "unique-id listing"

If

there are no messages on the maildrop list of the server. T

he

POP3 service returns a positive response,

i.e. It does not issue an error response, but the "unique-

id listing" will be empty. In either case, each unique-

id

listing will be finished by so-called "dotline",

i.e.a new

line with just a singledot. <msgNumber> and <lineNumber

>

must not be given.

3 Top command

The command ret

rieves the number of lines of the message’s

body from the POP3 server’s maildrop list.

The POP3 server

sends the headers of the message, the blank line separating

the headers from the body,

and then the number of lines of the

message’s body. If the number of lines requested by

The

POP3 client is greater than the number of lines

in the body,

then the POP3 server sends the entire

message.

If no such message exists on the server the POP3

service issues an error response to the us

er.

Each email will be finished by a so-called "dotline"

,

i.e.a

new line with just a single dot.

<msgNumber> and <lineNumber> must be given.

4 Retrieve command

The command retrieves the related message from th

e

POP3 server’s maildrop list.

If no such message exists

on the server the POP3 service issues an error response to the

user. Each email will be finished by a so-called "dotline", i.e.

a new line with just a single dot.

<msgNumber> must be given.

<msgNumber> The message number of Email.

<lineNumber> The number of lines of the message body.

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

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64 Timeout of POP3 server response

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

After sending these POP3 commands and POP3 server issuing a positive

response, you can get the response by "AT+POP3READ".

14.2.19 AT+POP3READ Read Multi-line Response

AT+POP3READ Read Multi-line Response

Test Command

AT+POP3READ=?

Response

+POP3READ: (range of supported <reqLength>s)

OK

Parameters

See Write Command

Write Command

AT+POP3READ=<

reqLength>

Response

If the data of response not to be read completely:

+POP3READ: 1,<cnfLength>

If the data of response to be read completely:

+POP3READ: 2,<cnfLength>

If some data need to be read,the URC below is reported:

+POP3READ: 3,<dataLength>

If error is related to ME functionality:

ERROR

If some error occur:

+POP3OUT: <code>

Parameters

<reqLength> Requested number of data bytes (1-1460) to be read

<cnfLength> Confirmed number of data bytes to be read, which may

be less than <reqLength>. 0 indicates that no data can be

read.

<dataLength> Received number of data bytes.

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

69 Read data timeout

Parameter Saving

NO_SAVE

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Mode

Max Response Time

-

Reference

Note

l Other AT commands (but "AT+POP3OUT"

) can not be executed

until the data of response are read completely.

l If <confLength> is less than <reqLength>, you should wait

for a

URC "+POP3READ: 3,<dataLength>" reported.

Then you may

continue to read data by "AT+POP3READ".

l If the module has some unread data, the URC "

+POP3READ:

3,<dataLength>" is reported every once in a while.

After some

time, these data are not still been read,

the module will quit the

POP3 process.

14.2.20 AT+POP3DEL Mark the Specific Email to Delete

AT+POP3DEL Mark the Specific Email to Delete

Test Command

AT+POP3DEL=?

Response

+POP3DEL: (range of supported <msgNumber>s)

OK

Parameters

See Write Command

Write Command

AT+POP3DEL=<m

sgNumber>

Response

OK

If error is related to ME functionality:

ERROR

If POP3 server issues a positive response:

+POP3DEL: 1

If POP3 server issues a negative response:

+POP3DEL: 0

If some error occur:

+POP3OUT: <code>

Parameters

<msgNumber> The message number of Email

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

Parameter Sav

ing

Mode

NO_SAVE

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Max Response Time

-

Reference Note

The POP3 server marks the Email as deleted.

Any future reference to the

message-

number associated with the Email in a POP3 command

generates an error.

The POP3 server does not actually delete the Email

until the POP3 client logs out POP3 server and closes the session

normally.

14.2.21 AT+POP3RSET Unmark the Emails that Be Marked as Deleted

AT+POP3RSET Unmark the Emails that Be Marked as Deleted

Test Command

AT+POP3RSET=?

Response

OK

Parameter

Execution Command

AT+POP3RSET

Response

OK

If error is related to ME functionality:

ERROR

If POP3 server issues a positive response:

+POP3RSET: 1

If POP3 server issues a negative response:

+POP3REST: 0

If some error occur:

+POP3OUT: <code>

Parameters

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

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14.2.22 AT+POP3OUT Log Out POP3 Server

AT+POP3OUT Log Out POP3 Server

Test Command

AT+POP3OUT=?

Response

OK

Parameters

Execution Command

AT+POP3OUT

Response

OK

If error is related to ME functionality:

ERROR

If the process is completed, return:

+POP3OUT: <code>

Parameters

<code> The result of logging out POP3 server

1 Normally log out POP3 server

61 Network error

62 DNS resolve error

63 POP3 tcp connection error

64 Timeout of POP3 server response

69 Timeout of read data

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

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15 AT Commands for MMS Application

SIM800 series support MMS operation.

15.1 Overview

Command Description

AT+CMMSCURL Set the URL of the MMS center

AT+CMMSPROTO Set the protocol parameter and MMS proxy

AT+CMMSCID Set the network parameters for MMS

AT+CMMSSENDCFG

Set the parameters for sending MMS

AT+CMMSEDIT Enter or exit edit mode

AT+CMMSDOWN Download the file data or title from UART

AT+CMMSDELFILE Delete the file of the edited MMS by file index

AT+CMMSSEND Start MMS sending

AT+CMMSRECP Add recipients

AT+CMMSCC Add copy recipients

AT+CMMSBCC Add secret recipients

AT+CMMSDELRECP Delete recipients

AT+CMMSDELCC Delete copy recipients

AT+CMMSDELBCC Delete secret recipients

AT+CMMSRECV Receive MMS

AT+CMMSVIEW Get the MMS into buffer and show the information

AT+CMMSREAD Read the given file of the MMS in the buffer

AT+CMMSRDPUSH Read the information of the MMS push message

AT+CMMSUA Set User Agent

AT+CMMSPROFILE Set User Agent Profile

AT+CMMSTIMEOUT Set MMS Timeout

AT+CMMSSTATUS Get MMS Status

AT+CMMSINIT Initialize MMS Function

AT+CMMSTERM Exit MMS function

AT+CMMSSCONT Save MMS context

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15.2 Detailed Descriptions of Commands

15.2.1 AT+CMMSCURL Set the URL of the MMS Center

AT+CMMSCURL Set the URL of the MMS Center

Test Command

AT+CMMSCURL=

?

Response

+CMMSCURL: "URL"

OK

Parameters

See Write Command

Read Command

AT+CMMSCURL?

Response

+CMMSCURL: <mmscurl>

OK

Parameters

See Write Command

Write Command

AT+CMMSCURL=

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<mmscurl> The URL of the MMS center.

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

15.2.2 AT+CMMSPROTO Set the Protocol Parameter and MMS Proxy

AT+CMMSPROTO Set the Protocol Parameter and MMS Proxy

Test Command

AT+CMMSPROTO

=?

Response

+CMMSPROTO: "(0-255).(0-255).(0-255).(0-255)",(1-65535)

OK

Parameters

See Write Command

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Read Command

AT+CMMSPROTO

?

Response

+CMMSPROTO: <Gateway>,<Port>

OK

Parameters

See Write Command

Write Command

AT+CMMSPROTO

=<Gateway>,<Port

>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<Gateway> IP address of MMS proxy.

<Port> Port of MMS proxy.

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

15.2.3 AT+CMMSCID Set the Network Parameters for MMS

AT+CMMSCID Set the Network Parameters for MMS

Test Command

AT+CMMSCID=?

Response

+CMMSCID: (1-3)

OK

Parameters

See Write Command

Read Command

AT+CMMSCID?

Response

+CMMSCID: <value>

OK

Parameters

See Write Command

Write Command

AT+CMMSCID=<v

alue>

Response

OK

or

ERROR

or

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+CME ERROR: <err>

Parameters

<value> network parameters, refer to "AT+SAPBR"

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

15.2.4 AT+CMMSSENDCFG Set the Parameters for Sending MMS

AT+CMMSSENDCFG Set the Parameters for Sending MMS

Test Command

AT+CMMSSENDC

FG=?

Response

+CMMSSENDCFG: (0-6), (0-3),(0,1), (0,1),(0-2),(0-4),(1-2),(0,1)

OK

Parameters

See Write Command

Read Command

AT+CMMSSENDC

FG?

Response

+CMMSSENDCFG:

<valid>,<pri>,<sendrep>,<readrep>,<visible>,<class>,<subctrl>,<no

tifrspcheck>

OK

Parameters

See Write Command

Write Command

AT+CMMSSENDC

FG=<valid>[,<pri>[

,<sendrep>[,<readre

p>[,<visible>[,<class

>[,<subctrl>[,<notif

rspcheck>]]]]]]]

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<valid> The valid time of sent MMS

0 1 hour

1 12 hours

2 24 hours

3 2 days

4 1 week

5 maximum

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6 Not set (default)

<pri> Priority

0 lowest

1 normal

2 highest

3 Not Set (default)

<sendrep> Whether it need deliver report

0 No (default)

1 Yes

<readrep> Whether it need receive report

0 No (default)

1 Yes

<visible> Whether it need show the sender address

0 hide the sender address

1 show the sender address even if it is a secret address

2 Not set (default)

<class> The class of the MMS

0 Personal

1 Advertisement

2 Informational

3 Auto

4 Not set (default)

<subctrl> Subject control

1 For Chinese character code

2 For English character code

<notifrspcheck> Whether it need to check the HTTP response of MMS

notifyrsp ind then to proceed the next step.

0 Waiting for HTTP response

1 Skip waiting for HTTP response

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

15.2.5 AT+CMMSEDIT Enter or Exit Edit Mode

AT+CMMSEDIT Enter or Exit Edit Mode

Test Command

AT+CMMSEDIT=?

Response

+CMMSEDIT: (0,1)

OK

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Parameters

See Write Command

Read Command

AT+CMMSEDIT?

Response

+CMMSEDIT: <mode>

OK

Parameters

See Write Command

Write Command

AT+CMMSEDIT=<

mode>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<mode> Whether it allows to edit MMS

0 Not allow to edit MMS

1 Allow to edit MMS

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

It includes adding and deleting receipt, downloading and deleting files,

downloading title to edit MMS.

15.2.6 AT+CMMSDOWN Download the File Data or Title from UART

AT+CMMSDOWN Download the File Data or Title from UART

Test Command

AT+CMMSDOWN

=?

Response

+CMMSDOWN: "PIC", (1-307200), (5000-),"NAME"

+CMMSDOWN: "TEXT", (1-15360), (2000-),"NAME"

+CMMSDOWN: "TITLE", (1-40), (2000-)

+CMMSDOWN: "AUDIO_ACC", (1-307200), (5000-),"NAME"

+CMMSDOWN: "AUDIO_AMR", (1-307200), (5000-),"NAME"

+CMMSDOWN: "AUDIO_BASIC", (1-307200), (5000-),"NAME"

+CMMSDOWN: "AUDIO_MID", (1-307200), (5000-),"NAME"

+CMMSDOWN: "AUDIO_MPEG", (1-307200), (5000-),"NAME"

+CMMSDOWN: "VIDEO_3GPP", (1-307200), (5000-),"NAME"

+CMMSDOWN: " VIDEO _MP4", (1-307200), (5000-),"NAME"

OK

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Write Command

AT+CMMSDOWN

=<type>,<size>,<tim

e>[,<name>]

Response

CONNECT

or

ERROR

or

+CME ERROR: <err>

Parameters

<type> A string parameter which indicates type of downloaded

data

"TITLE" MMS title data

"TEXT" MMS text data

"PIC" MMS image data

"AUDIO_AAC" MMS aac audio data

"AUDIO_AMR" MMS amr audio data

"AUDIO_BASIC" MMS basic audio data

"AUDIO_MID" MMS mid audio data

"AUDIO_MPEG" MMS mpeg audio data

"VIDEO_3GPP" MMS 3gpp video data

"VIDEO_MP4" MMS mp4 video data

<size>

Size in bytes of the data to be downloaded.

<time> Maximum time in milliseconds to download data.

<name> The file name of the image or the text to be downloaded,

including extended name. The default name for image is

"image<m>.jpg" and the default name for text is

"text<n>.txt". <m> and <n> are in the range of 0~255

Parameter Saving

Mode

NO_SAVE

Max Response Time

Decided by <time>

Reference Note

l It is strongly recommended to set the time long enough to download

all the file data and make sure that the real size of the file to

download is not bigger than <size>.

l The maximum size of <name> is 40 Bytes and only ASCII code is

recognized for <name>.

15.2.7 AT+CMMSDELFILE Delete the File of the Edited MMS by File Index

AT+CMMSDELFILE Delete the File of the Edited MMS by File Index

Test Command

AT+CMMSDELFI

LE=?

Response

OK

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Write Command

AT+CMMSDELFI

LE=<fileIndex>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<fileIndex> The index of the file to be deleted in the MMS. Refer to

"AT+CMMSVIEW".

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

This command is valid when it is allowed to edit MMS.

15.2.8 AT+CMMSSEND Start MMS Sending

AT+CMMSSEND Start MMS Sending

Test Command

AT+CMMSSEND=

?

Response

+CMMSSEND: "ADDRESS"

OK

Write Command

AT+CMMSSEND=

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<address> A string parameter which indicates address of recipients.

Execution Command

AT+CMMSSEND

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameter Saving

Mode

NO_SAVE

Max Response Time

AT+CMMSTIMEOUT

Reference

Note

It is not allowed to input <address> when it not allowed to edit MMS.

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15.2.9 AT+CMMSRECP Add Recipients

AT+CMMSRECP Add Recipients

Test Command

AT+CMMSRECP=

?

Response

+CMMSRECP: "ADDRESS"

OK

Read Command

AT+CMMSRECP?

Response

+CMMSRECP: the list of <addr>s

OK

Parameters

See Write Command

Write Command

AT+CMMSRECP=

<addr>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<addr> A string parameter which indicates phone number or email

address of recipients. The maximum length of the string is

40.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

The maximum of recipients is 20 and this command is valid only when it

is allowed to edit MMS.

15.2.10 AT+CMMSCC Add Copy Recipients

AT+CMMSCC Add Copy Recipients

Test Command

AT+CMMSCC=?

Response

+CMMSCC: "ADDRESS"

OK

Read Command

AT+CMMSCC?

Response

+CMMSCC: the list of <addr>s

OK

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Parameters

See Write Command

Write Command

AT+CMMSCC=<ad

dr>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<addr> A string parameter which indicates phone number or email

address of copy recipients. The maximum length of the

string is 40.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

The maximum of copy recipients is 20 and this command is valid only

when it is not allowed to edit MMS.

15.2.11 AT+CMMSBCC Add Secret Recipients

AT+CMMSBCC Add Secret Recipients

Test Command

AT+CMMSBCC=?

Response

+CMMSBCC: "ADDRESS"

OK

Read Command

AT+CMMSBCC?

Response

+CMMSBCC: the list of <addr>s

OK

Parameters

See Write Command

Write Command

AT+CMMSBCC=<

addr>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<addr> A string parameter which indicates phone number or email

address of secret recipients. The maximum length of the

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string is 40.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

The maximum of secret recipients is 20 and this command is valid only

when it is allowed to edit MMS

15.2.12 AT+CMMSDELRECP Delete Recipients

AT+CMMSDELRECP Delete Recipients

Test Command

AT+CMMSDELRE

CP=?

Response

+CMMSDELRECP: "ADDRESS"

OK

Write Command

AT+CMMSDELRE

CP=<addr>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<addr> A string parameter which indicates phone number or email

address of recipient. The maximum length of the string is

40.

Execution Command

AT+CMMSDELRE

CP

Delete all the recipients

Response

OK

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

This command is valid when it is allowed to edit MMS

15.2.13 AT+CMMSDELCC Delete Copy Recipients

AT+CMMSDELCC Delete Copy Recipients

Test Command

AT+CMMSDELCC

Response

+CMMSDELCC: "ADDRESS"

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=?

OK

Write Command

AT+CMMSDELCC

=<addr>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<addr> A string parameter which indicates phone number or

email address of copy recipients. The maximum length of

the string is 40.

Execution Command

AT+CMMSDELCC

Delete all the copy recipients

Response

OK

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

This command is valid when it is allowed to edit MMS.

15.2.14 AT+CMMSDELBCC Delete Secret Recipients

AT+CMMSDELBCC Delete Secret Recipients

Test Command

AT+CMMSDELBC

C=?

Response

+CMMSDELBCC: "ADDRESS"

OK

Write Command

AT+CMMSDELBC

C=<addr>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<addr> A string parameter which indicates phone number or

email address of secret recipient. The maximum length of

the string is 40.

Execution Command

AT+CMMSDELBC

C

Delete all the secret recipients

Response

OK

Parameter Saving

NO_SAVE

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Mode

Max Response Time

-

Reference

Note

This command is valid when it is allowed to edit MMS.

15.2.15 AT+CMMSRECV Receive MMS

AT+CMMSRECV Receive MMS

Test Command

AT+CMMSRECV=

?

Response

+CMMSRECV: (range of <index>)

OK

Write Command

AT+CMMSRECV=

<index>

Response

+CMMSRECV:

"<sender>","<time>","<subject>",<size><CR><LF>

list of <fileIndex,name,type,filesize><CR><LF>

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<index> The index of the push message saved in the SIM message

box.

<sender> The address of the sender

<time> The time to receive the MMS

<subject> the title of the MMS

<size> The size of the MMS

<fileIndex,name,type,filesize> The index, name and size of every file

included in the MMS. The types are defined as following.

2 text

3 text/html

4 text/plain

5 image

6 image/gif

7 image/jpg

8 image/tif

9 image/png

10 smil

Parameter Saving

Mode

NO_SAVE

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Max Response Time

AT+CMMSTIMEOUT

Reference

Note

l This command is valid only when it is not allowed to edit MMS and

the buffer for MMS will be clear up. So it is recommended to save

the MMS in the buffer before receiving MMS.

l The received MMS is just saved in the buffer but not saved in the

flash.

l The maximum number of inclosure is 10.

15.2.16 AT+CMMSVIEW Get the MMS into Buffer and Show the Information

AT+CMMSVIEW Get the MMS into Buffer and Show the Information

Test Command

AT+CMMSVIEW=

?

Response

OK

Execution Command

AT+CMMSVIEW

Response

+CMMSVIEW: <mmstype>,"<sender>", "<receipts>", "<ccs>",

"<bccs>", "<datetime>","<subject>",<size><CR><LF>list of

<fileIndex, name, type, filesize><CR><LF>

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<mmstype> The type of MMS

0 Received MMS

1 Sent MMS

2 Unsent MMS

<sender> The address of th sender

<receipts> List of recipients, Separated by “;”

<ccs> List of copy recipients , Separated by “;”

<bccs> List of secret recipients , Separated by “;”

<datetime> The time of receive MMS

<subject> The title of MMS

<size> Data size of MMS

<fileIndex,name,type,filesize> The index, name and size of every file

included in the MMS. The types are defined as following.

2 text

3 text/html

4 text/plain

5 image

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6 image/gif

7 image/jpg

8 image/tif

9 image/png

10 smil

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

15.2.17 AT+CMMSREAD Read the Given File of the MMS in the Buffer

AT+CMMSREAD Read the Given File of the MMS in the Buffer

Test Command

AT+CMMSREAD=

?

Response

OK

Write Command

AT+CMMSREAD=

Response

+CMMSREAD: <name> <datSize>

File content

OK

Parameters

<fileIndex> The index of the file to be read from the MMS in the

buffer，i.e. the parameter <fileIndex> in

"AT+CMMSRECV" and "AT+CMMSVIEW"

<name> The file name to be read

<datSize> The size of the file to be read

Parameter Saving

Mode

NO_SAVE

Max Response Time

5s

Reference

Note

If the file type is text, the character set of the output text is Unicode little

endian without the header "FF FE".

15.2.18 AT+CMMSRDPUSH Read the Information of the MMS PUSH Message

AT+CMMSRDPUSH Read the Information of the MMS PUSH Message

Test Command

AT+CMMSRDPUS

Response

+CMMSRDPUSH: (range of <index>)

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H=?

OK

Write Command

AT+CMMSRDPUS

H=<index>

Response

+CMMSRDPUSH:

2,”<sender>”,”<subject>”,”<transaction>”,”<location>”,”<time>”,<

class>,<size>

OK

or

+CMMSRDPUSH: 6, “<receiver>”,”<time>”,<status>

OK

or

+CMMSRDPUSH: 255

OK

or

+CME ERROR: <err>

Parameters

The first parameter of the response should be 2 or 6, or the other type of

the MMS PDU.

2 m-notification-ind[2]. To inform the contents of a

received MMS

6 m-delivery-ind[2]. A delivery report

255 unknown MMS PDU

<index> The index of the push message saved in the SIM

message box.

<sender> The address of the sender

<receiver> The address of the receiver

<subject> The title of the MMS

<transaction> The X-Mms-Transation-ID[2] of the received MMS

<location> The X-Mms-Content-Location[2] of the received MMS

<class> The X-Mms-Class[2] of the received MMS

0 Personal

1 Advertisement

2 Informational

3 Auto

<time> Date and time of the received push message.

<size> The size of the MMS

<status> The status of the sent MMS

0 Expired

1 Retrieved

2 Rejected

3 Defered

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4 Unrecognized

Parameter Saving

Mode

NO_SAVE

Max Response Time

5s

Reference

Note

l This command is valid only when it is not allowed to edit MMS and

the buffer for MMS will be clear up. So it is recommended to save

the MMS in the buffer before receiving MMS.

l The received MMS is just saved in the buffer but not saved in the

flash.

15.2.19 AT+CMMSUA Set User Agent

AT+CMMSUA Set User Agent

Test Command

AT+CMMSUA=?

Response

+CMMSUA: "UserAgent"

OK

Parameters

See Write Command

Read Command

AT+CMMSUA?

Response

+CMMSUA: <UA>

OK

Parameter

See Write Command

Write Command

AT+CMMSUA=<U

A>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<UA> string type user agent name

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

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15.2.20 AT+CMMSPROFILE Set User Agent Profile

AT+CMMSPROFILE Set User Agent Profile

Test Command

AT+CMMSPROFI

LE=?

Response

+CMMSPROFILE: "UserAgentProfile"

OK

Parameters

See Write Command

Read Command

AT+CMMSPROFI

LE?

Response

+CMMSPROFILE: <UAProfile>

OK

Parameter

See Write Command

Write Command

AT+CMMSPROFI

LE=<UAProfile>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<UAProfile> string type user agent profile

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

15.2.21 AT+CMMSTIMEOUT Set MMS Timeout

AT+CMMSTIMEOUT Set MMS Timeout

Test Command

AT+CMMSTIMEO

UT=?

Response

+CMMSTIMEOUT: (10-1000),(10-1000)

OK

Parameters

See Write Command

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Read Command

AT+CMMSTIMEO

UT?

Response

+CMMSTIMEOUT: <Send timeout>,<Recv timeout>

OK

Parameters

See Write Command

Write Command

AT+CMMSTIMEO

UT=<Send

timeout>,<Recv

timeout>>

Response

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<Send timeout> Send timeout time, integer type, in seconds.

<Recv timeout> Receive timeout time, integer type, in seconds.

Parameter Saving

Mode

AT+CMMSSCONT

Max Response Time

-

Reference

Note

15.2.22 AT+CMMSSTATUS Get MMS Status

AT+CMMSSTATUS Get MMS Status

Test Command

AT+CMMSSTATU

S=?

Response

OK

Parameters

See Write Command

Read Command

AT+CMMSSTATU

S？

Response

+CMMSSTATUS:<status>

OK

or

ERROR

or

+CME ERROR: <err>

Parameters

<status> status of MMS action

MMS_IDLE

MMS_DOWNLOADING

MMS_DOWNLOADED

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MMS_SENDING

MMS_RECEIVING

MMS_RECEIVED

MMS_READING

MMS_READING_PUSH

Par

ameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

15.2.23 AT+CMMSINIT Initialize MMS Function

AT+CMMSINIT Initialize MMS Function

Test Command

AT+CMMSINIT=?

Response

OK

Parameters

No Parameter

Execution Command

AT+CMMSINIT

Response

OK

or

ERROR

or

+CME ERROR: <err>

No Parameter

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

When first entering the MMS function, this command must be executed.

15.2.24 AT+CMMSTERM Exit MMS Function

AT+CMMSTERM Exit MMS Function

Test Command

AT+CMMSTERM=

?

Response

OK

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Parameters

No Parameter

Execution Command

AT+CMMSTERM

Response

OK

or

ERROR

or

+CME ERROR: <err>

No Parameter

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

When exiting the MMS function, this command must be executed.

15.2.25 AT+CMMSSCONT Save MMS Context

AT+CMMSSCONT Save MMS Context

Test Command

AT+CMMSSCONT

=?

Response

OK

Parameters

See Execution Command

Read Command

AT+CMMSSCONT

?

Response

+CMMSSCONT: <mode>

+CMMSCID: <value>

+CMMSCURL: <mmscurl>

+CMMSUA: <UA>

+CMMSPROFILE: <UAProfile>

+CMMSPROTO: <Gateway>,<Port>

+CMMSSENDCFG:

<valid>,<pri>,<sendrep>,<readrep>,<visible>,<class>,<subctrl>,<no

tifyskip>

+CMMSTIMEOUT: <Send timeout>,<Recv timeout>

OK

Parameters

See Execution Command

Execution Command

AT+CMMSSCONT

Response

OK

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Parameters

<mode> 0 saved, the value from NVRAM

For other parameters, see the related command.

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference

Note

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16 AT Commands for DDET Application

DTMF detection can be set or activated by DDET command.

16.1 Overview

Command Description

AT+DDET DTMF detection control

16.2 Detailed Descriptions of Commands

16.2.1 AT+DDET DTMF Detection Control

AT+DDET DTMF Detection Control

Test Command

AT+DDET=?

Response

+DDET: (0,1),(0-10000),(0,1),(0,1)

OK

Parameters

See Write Command

Read Command

AT+DDET?

Response

+DDET: <mode>,<interval>,<reportMode>,<ssdet>

OK

Parameters

See Write Command

Write Command

AT+DDET=<mo

de>[,<interval>][

,<reportMode>][

,<ssdet>]

Response

OK

ERROR

Unsolicited Result Code

1)If <reoportMode> is set to 0

+DTMF: <key>

2)If <reportMode> is set to 1

+DTMF: <key>,<last time>

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Parameters

<mode> Disable or enable DTMF detection control

0 Disable

1 Enable

<interval> The min interval between two same key URC. The range is

0-10000, the default value is 0. unit is ms.

<reportMode> URC report mode

0 Key value reported only

1 Key value and last time are reported, the last time is in ms

<key> Keytone detected, 0-9,*,#,A,B,C,D.if <ssdet> is 1,Single frequency

sound 1400 and 2300 is supported too, when single frequency 1400HZ

sound or 2300HZ sound is detected, +DTMF:1400 or +DTMF:2300 is

reported

<last time> Duration of keytone playing. unit is ms.

<ssdet> Single frequency sound detect function on off

0 Switch off

1 Switch on

Parameter Saving

Mode

AT&W_SAVE

Max Response

Time

-

Reference

Note

The parameters <interval> ,<reportMode> and <ssdet> can not power off

save

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17 AT Commands for RECORD Application

17.1 Overview

Command Description

AT+CREC Record operation

AT+CRECORD Record and send data to UART

17.2 Detailed Descriptions of Commands

17.2.1 AT+CREC Record Operation

AT+CREC Record Operation

Test Command

AT+CREC=?

Response

+CREC: (1-n),(1-10)

OK

Parameters

See Write Command

Read Command

AT+CREC?

Response

+CREC: <status>

OK

Parameters

<status> 0 idle state

1 recording state

2 playing state

Write Command

AT+CREC=<mo

de>,[<id>]

Response

OK

1) mode=1,start record

AT+CREC=1,<id>,<form>,[<time>][,<location>],[<quality>],[<input

path>]

OK

2) mode=2,stop record

AT+CREC=2

OK

+CREC: 2,<id>,<form>,<time>,<len>

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3) mode=3,delete record

AT+CREC=3,<id>

OK

4) mode=4,play record file

AT+CREC=4,<id>,<channel>,<level>[,<repeat>]

OK

5) mode=5,stop play record file

AT+CREC=5

+CREC: 0

OK

6) mode=6,read record data

AT+CREC=6,<id>,<len>,<offset>

+CREC: 6,<id>,<len>

<data>

OK

7) mode=7,view record file infomation

AT+CREC=7,[<id>]

+CREC: 7,<id>,<len>,<form>

OK

8) mode=8,query free space for recording

If SD card is supported

AT+CREC=8

+CREC: 8,sys:<len> sd:<len>

OK

If SD card is not supported

AT+CREC=8

+CREC: 8,<len>

OK

9) mode=9, create record file directory.

AT+CREC=9,<location>

OK

If error is related to ME functionality:

+CME ERROR: <err>

<err> 5000 Be recoding

5001 Be playing

5002 Audio busy

5003 No space

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5004 Format error

5005 File operation failure

5006 File is null

5007 File size is error

5008 File is not exist

Parameters

<n> Number of operation support, if SD card is support

ed, the number

will be 9, or will be 8

<mode> 1 Start record

2 Stop record

3 Delete record

4 Play record

5 Stop play record

6 Get record data in hex format, the max length is 32

K in

bytes

7 List record files infomation

8 Query free space in bytes

9 Create record file direcotry

<id> File ID number, 1-10 or file path with double quotation marks

, such

as "C:\User\1155165.amr".

<form> Record file format

0 AMR

1 WAV

2 WAV_ADPCM

<time> Recording time limit. The recording will be stoppe

d if the

recording time reaches the time limit,

or there is a mistake/memory

full/other events disturbed (call setup, etc.)/ Or manual operation.

If 0 or

default value is set, no time limit is set.

<channel> Channel

0 Main channel

1 Aux channel

<level> 0-100, play volume

<repeat> Repeate

0 Play once

1 Play infinitely

<len> Length in bytes. When read record data, the max length is 32K

<offset> Offset of the record file , it is less than the length of reord file.

When read the record file, if the <len>+<offset>

is larger than the file

length, then we need to return to the actural data length.

<data> Record file data in hex format

<location> Record file location

0 System FAT

1 SD card

<inputpath> Input channel

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0 MIC1

1 MIC2

<quality> Record quality

0 Low

1 Medium

2 High

3 Best

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l Record will overwrite the record file with the same ID when free

space

is enough，

but overwrite the record file with the same ID and format

when free space is not enough.

l About 40K FAT space will remain for system use.

l The setting of input path doesn’t take effect when record in call.

l Play in call support low quality WAV record file.

l Location relative setting only take effect when SD card

is support and

plugged in.

l When DDET is set to 1, record is not allowed in call.

l The value of parameter <id> of "AT+CREC=7" can not

support file

path.

l The value of parameter <form> of "AT+CREC=1"

is invalid if the

value of <id> is file path. The record file format can get from file path.

l The max length of parameter <len> of "AT+CREC=6" is 32K bytes.

l Scope of parameter <inputpath> is d

ifferent among SIM800 series

project, please refer to chapter 21 for details.

17.2.2 AT+CRECORD Record and Send Data to UART

AT+CRECORD Record and Send Data to UART

Test Command

AT+CRECORD

=?

Response

+CRECORD: (0,1)

OK

Parameters

See Write Command

Write Command

AT+CRECORD

=<mode>[,<inter

val>][,<crcmode

>]

Response

OK

or

+CRECORD:<data>

or

ERROR

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Parameters

<data>

UART data output in specified form, which is deciede by

<mode>

0 Stop record

1 Start record

<interval> UART data output interval, the range is 1-

50, the default value

is 50. unit is 20ms.

<crcmode> Data form

0 UART data is the audio data

1 0x7E is added to the head, 0x7E is converted to 0x7D 0x5E, 0x7D is

converted to 0x7D 0x5D.

2 0x7E is added to the head, 0x7E is converted to 0x7D 0x5E, 0x7D is

converted to 0x7D 0x5D,a 2byte CRC code is added to the end

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l When "AT+CRECORD" is set to 1, data mode will be entered and

audio data will output on the UART every the interval time, any input

on the UART will stop the record. "AT+CRECORD=0" take no

effect.

l AMR 4.75K is supported only

l AMR file head "#*AMR\n" is not outputed

Note: Part of the projects support record function, please refer to chapter 21 for details.

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18 AT Commands for TTS Application

18.1 Overview

Command Description

AT+CTTS TTS operation

AT+CTTSPARAM Set params of the TTS playing

AT+CTTSRING Enable/disable TTS play during incoming call ring

18.2 Detailed Descriptions of Commands

18.2.1 AT+CTTS TTS Operation

AT+CTTS TTS Operation

Test Command

AT+CTTS=?

Response

OK

No prameter

Read Command

AT+CTTS?

Response

+CTTS: <status>

OK

Parameters

<status> 0 Idle mode

1 Play mode

Write Command

AT+CTTS=<mo

de>[,<text>]

Response

if<mode>=0，response：

OK

if<mode>=1 or 2，response:

OK

+CTTS: 0 // speech played over

If error is related to MS functionality, response：

+CME ERROR: <err>

Parameters

<mode> 0 Stop playing speech

1 Start to play synthetic speech，<text> is in UCS2 coding

format.

2 Start to play synthetic speech， <text> is in ASCII

coding

format.

Chinese text is in GBK coding format.

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Italian text is in ASCII and GBK hybrid coding format.

<text>

The text which is synthetized to speech to be played, maximum

data length is 956 Bytes

Parameter Saving

Mode

NO_SAVE

Max Response

Time

-

Reference

Note

l Call setup will stop the current tts play

l TTS can play in call, but call release will stop the tts play

l TTS play is not allowed when alert or ring

18.2.2 AT+CTTSPARAM Set Parameters of the TTS Playing

AT+CTTSPARAM Set Parameters of the TTS Playing

Test Command

AT+CTTSPARAM=

?

Response

+CTTSPARAM: (0-100),(0-3),(1-100),(1-100),(0,1)

OK

Parameters

See Write Command

Read Command

AT+CTTSPARAM?

Response

+CTTSPARAM: <volume>,<mode>,<pitch>,<speed>,<channel>

OK

Parameters

See Write Command

Write Command

AT+CTTSPARAM=

<volume>,<mode>,

<pitch>,<speed>[,<c

hannel>]

Response

OK

If error is related to MS functionality, response：

+CME ERROR: <err>

Parameters

<volume> TTS playing volume, the range is 0-100,the default is 50.

<mode> TTS playing mode, the range is 0-3

0 Auto read digit, and read digit based on number rule first

1 Auto read digit, and read digit based on telegram rule first

2 Read digit based on telegram rule

3 Read digit based on number rule

<pitch> TTS playing pitch, the range is 1-100,the default is 50.

<speed> TTS playing speed, the range is 1-100,the default is 50.

<channel> TTS play channel.

0 Main channel

1 Aux channel

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Parameter Savi

ng

Mode

NO_SAVE

Max Response Time

-

Reference Note

l TTS play channel setting take no effect in call. TTS play channel

depend on CHFA when in call.

l The default value of parameter <channel> is different among

SIM800 series projects, please refer to chapter 21 for details.

18.2.3 AT+CTTSRING Enable/Disable TTS Play During Incoming Call Ring

AT+CTTSRING Enable/Disable TTS Play During Incoming Call Ring

Test Command

AT+CTTSRING=?

Response

+CTTSRING: (0,1)

OK

Parameters

See Write Command

Read Command

AT+CTTSRING?

Response

+CTTSRING: <mode>

OK

Parameters

See Write Command

Write Command

AT+CTTSRING=<

mode>

Response

OK

If error is related to MS functionality, response：

+CME ERROR: <err>

Parameters

<mode> Enable/disable TTS play during incoming call ring

0 Diable TTS play during incoming call ring

1 Enable TTS play during incoming call ring

Parameter Saving

Mode

NO_SAVE

Max Response Time

-

Reference Note

If <mode> is set to 1, it is up to the customer to stop TTS play before

accept the call

Note: Part of the project supported TTS function, please refer to chapter 21 for details.

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19 Supported Unsolicited Result Codes

19.1 Summary of CME ERROR Codes

Final result code +CME ERROR: <err> indicates an error related to mobile equipment or

network. The operation is similar to ERROR result code. None of the following commands in the

same Command line is executed. Neither ERROR nor OK result code shall be returned.

<err> values used by common messaging commands:

Code of <err> Meaning

0 phone failure

1 no connection to phone

2 phone-adaptor link reserved

3 operation not allowed

4 operation not supported

5 PH-SIM PIN required

6 PH-FSIM PIN required

7 PH-FSIM PUK required

10 SIM not inserted

11 SIM PIN required

12 SIM PUK required

13 SIM failure

14 SIM busy

15 SIM wrong

16 incorrect password

17 SIM PIN2 required

18 SIM PUK2 required

20 memory full

21 invalid index

22 not found

23 memory failure

24 text string too long

25 invalid characters in text string

26 dial string too long

27 invalid characters in dial string

30 no network service

31 network timeout

32 network not allowed - emergency call only

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40 network personalisation PIN required

41 network personalisation PUK required

42 network subset personalisation PIN required

43 network subset personalisation PUK required

44 service provider personalisation PIN required

45 service provider personalisation PUK required

46 corporate personalisation PIN required

47 corporate personalisation PUK required

99 resource limitation

100 unknown

103 Illegal MS

106 Illegal ME

107 GPRS services not allowed

111 PLMN not allowed

112 Location area not allowed

113 Roaming not allowed in this location area

132 service option not supported

133 requested service option not subscribed

134 service option temporarily out of order

148 unspecified GPRS error

149 PDP authentication failure

150 invalid mobile class

160 DNS resolve failed

161 Socket open failed

171 MMS task is busy now

172 The MMS data is oversize

173 The operation is overtime

174 There is no MMS receiver

175 The storage for address is full

176 Not find the address

177 The connection to network is failed

178 Failed to read push message

179 This is not a push message

180 gprs is not attached

181 tcpip stack is busy

182 The MMS storage is full

183 The box is empty

184 failed to save MMS

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185 It is in edit mode

186 It is not in edit mode

187 No content in the buffer

188 Not find the file

189 Failed to receive MMS

190 Failed to read MMS

191 Not M-Notification.ind

192 The MMS inclosure is full

193 Unknown

600 No Error

601 Unrecognized Command

602 Return Value Error

603 Syntax Error

604 Unspecified Error

605 Data Transfer Already

606 Action Already

607 Not At Cmd

608 Multi Cmd too long

609 Abort Cops

610 No Call Disc

611 BT SAP Undefined

612 BT SAP Not Accessible

613 BT SAP Card Removed

614 AT Not Allowed By Customer

753 missing required cmd parameter

754 invalid SIM command

755 invalid File Id

756 missing required P1/2/3 parameter

757 invalid P1/2/3 parameter

758 missing required command data

759 invalid characters in command data

765 Invalid input value

766 Unsupported mode

767 Operation failed

768 Mux already running

769 Unable to get control

770 SIM network reject

771 Call setup in progress

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772 SIM powered down

773 SIM file not present

791 Param count not enough

792 Param count beyond

793 Param value range beyond

794 Param type not match

795 Param format invalid

796 Get a null param

797 CFUN state is 0 or 4

19.2 Summary of CMS ERROR Codes

Final result code +CMS ERROR: <err> indicates an error related to message service or

network. The operation is similar to ERROR result code. None of the following commands in the

same Command line is executed. Neither ERROR nor OK result code shall be returned.

<err> values used by common messaging commands:

Code of <err> Meaning

1 Unassigned(unallocated) number

3 No route to destination

6 Channel unacceptable

8 Operator determined barring

10 Call barred

11 Reserved

16 Normal call clearing

17 User busy

18 No user responding

19 User alerting, no answer

21 Short message transfer rejected

22 Number changed

25 Pre-emption

26 Non-selected user clearing

27 Destination out of service

28 Invalid number format (incomplete number)

29 Facility rejected

30 Response to STATUS ENQUIRY

32 Normal, unspecified

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34 No circuit/channel available

38 Network out of order

41 Temporary failure

42 Switching equipment Congestion

43 Access information discarded

44 Requested circuit/channel not available

47 Resources unavailable, unspecified

49 Quality of service unavailable

50 Requested facility not subscribed

55 Requested facility not subscribed

57 Bearer capability not authorized

58 Bearer capability not presently available

63 Service or option not available, unspecified

65 Bearer service not implemented

68 ACM equal or greater than ACM maximum

69 Requested facility not implemented

70 Only restricted digital information bearer capability is available

79 Service or option not implemented, unspecified

81 Invalid transaction identifier value

87 User not member of CUG

88 Incompatible destination

91 Invalid transit network selection

95 Semantically incorrect message

96 Invalid mandatory information

97 Message type non-existent or not implemented

98 Message type not compatible with protocol state

99 Information element non-existent or not implemented

100 Conditional information element error

101 Message not compatible with protocol

102 Recovery on timer expiry

111 Protocol error, unspecified

127 Interworking, unspecified

128 Telematic interworking not supported

129 Short message Type 0 not supported

130 Cannot replace short message

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143 Unspecified TP-PID error

144 Data coding scheme (alphabet) not supported

145 Message class not supported

159 Unspecified TP-DCS error

160 Command cannot be acted

161 Command unsupported

175 Unspecified TP-Command error

176 TPDU not supported

192 SC busy

193 No SC subscription

194 SC system failure

195 Invalid SME address

196 Destination SME barred

197 SM Rejected-Duplicate SM

198 TP-VPF not supported

199 TP-VP not supported

208 SIM SMS storage full

209 No SMS storage capability in SIM

210 Error in MS

211 Memory Capacity Exceeded

212 SIM Application Toolkit Busy

213 SIM data download error

224 CP retry exceed

225 RP trim timeout

226 SMS connection broken

255 Unspecified error cause

300 ME failure

301 SMS reserved

302 operation not allowed

303 operation not supported

304 invalid PDU mode

305 invalid text mode

310 SIM not inserted

311 SIM pin necessary

312 PH SIM pin necessary

313 SIM failure

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314 SIM busy

315 SIM wrong

316 SIM PUK required

317 SIM PIN2 required

318 SIM PUK2 required

320 memory failure

321 invalid memory index

322 memory full

323 invalid input parameter

324 invalid input format

325 invalid input value

330 SMSC address unknown

331 no network

332 network timeout

340 no cnma ack

500 Unknown

512 SMS no error

513 Message length exceeds maximum length

514 Invalid request parameters

515 ME storage failure

516 Invalid bearer service

517 Invalid service mode

518 Invalid storage type

519 Invalid message format

520 Too many MO concatenated messages

521 SMSAL not ready

522 SMSAL no more service

523 Not support TP-Status-Report & TP-Command in storage

524 Reserved MTI

525 No free entity in RL layer

526 The port number is already registerred

527 There is no free entity for port number

528 More Message to Send state error

529 MO SMS is not allow

530 GPRS is suspended

531 ME storage full

532 Doing SIM refresh

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19.3 Summary of Unsolicited Result Codes

URC Description AT Command

+CCWA:

<number>,<type>,<class>[,<a

lpha>]

Indication of a call that is currently

waiting and can be accepted. AT+CCWA=1

+CLIP:

<number>,<type>,<subaddr>,

<satype>,<alphaId>,<CLI

validity>

The calling line identity (CLI) of the

calling party when receiving a mobile

terminated call.

AT+CLIP=1

+CRING: <type> Indicates incoming call to the TE if

extended format is enabled.

AT+CRC=1

+CREG: <stat>[,<lac>,<ci>] There is a change in the MT network

registration status or a change of the

network cell.

AT+CREG=<n>

+CCWV Shortly before the ACM (Accumulated

Call Meter) maximum value is reached.

The warning is issued approximately

when 5 seconds call time remains. It is

also issued when starting a call if less

than 5 s call time remains.

AT+CCWE=1

+CMTI: <mem3>,<index> Indicates that new message has been

received.

AT+CNMI

<mt>=1

+CMTI:

<mem3>,<index>,"MMS

PUSH"

Indicates that new MMS message has

been received.

AT+CNMI

<mt>=1

+CMT:

Indicates that new message has been

received.

AT+CNMI

<mt>=2 (PDU

mode)

+CMT:

<oa>,<scts>[,<tooa>,<fo>,<pi

d>,<dcs>,<sca>,<tosca>,

Indicates that new message has been

received.

AT+CNMI

<mt>=2 (text

mode)

+CBM:

Indicates that new cell broadcast

message has been received.

AT+CNMI

<bm>=2 (PDU

mode enabled):

+CBM:

<sn>,<mid>,<dcs>,<page>,<p

ages><CR><LF><data>

Indicates that new cell broadcast

message has been received.

AT+CNMI

<bm>=2 (text

mode enabled):

+CDS:

Indicates that new SMS status report has

been received.

AT+CNMI

<ds>=1 (PDU

mode enabled):

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+CDS:

<fo>,<mr>[,<ra>][,<tora>],<s

cts>,<dt>,<st>

Indicates that new SMS status report has

been received.

AT+CNMI

<ds>=1 (text mode

enabled):

+

COLP

:

,<satype>,<alphaId>]

The presentation of the COL (Connected

Line) at the TE for a mobile originated

call.

AT+COLP=1

+

CSSU

: <code2> Presentation status during a mobile

terminated call setup or during a call, or

when a forward check supplementary

service notification is received.

AT+CSSN=<n>[,<

m>]<m>=1

+

CSSI

: <code1>[,<index>] Presentation status after a mobile

originated call setup AT+CSSN=<n>[,<

m>]<n>=1

+CLCC:

<id1>,<dir>,<stat>,<mode>,<

mpty>[,<number>,<type

>,<alphaID>]

[<CR><LF>+CLCC:

<id2>,<dir>,<stat>,<mode>,<

mpty>

[,<number>,<type>,<alphaID

>][...]]

Report a list of current calls of ME

automatically when the current call

status changes.

AT+CLCC=1

*PSNWID: "<mcc>",

"<mnc>", "<full network

name>",<full network name

CI>, "<short network

name>",<short network name

CI>

Refresh network name by network. AT+CLTS=1

*PSUTTZ:

<year>,<month>,<day>,<hour

>,<min>,<sec>, "<time

zone>",<dst>

Refresh time and time zone by network.

+CTZV: "<time zone>" Refresh network time zone by network.

DST: <dst> Refresh Network Daylight Saving Time

by network.

+CSMINS: <n>,<SIM

inserted>

Indicates whether SIM card has been

inserted.

AT+CSMINS=1

+CDRIND: <type>

Indicates whether a CS voice call, CS

data has been terminated.

AT+CDRIND=1

+CHF: <state> Indicates the current channel. AT+CHF=1

+CENG:

<cell>,"<arfcn>,<rxl>,<rxq>,

<mcc>,<mnc>,<bsic>,<cellid

>,<rla>,<txp>,<lac>,<TA>"

Report of network information. AT+CENG=<mod

e>[,<Ncell>]

<mode>=2

MO RING Shows call state of mobile originated

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call: the call is alerted. AT+MORING=1

MO CONNECTED Shows call state of mobile originated

call: the call is established.

AT+MORING=1

+

CPIN

: <code> Indicates whether some password is

required or not.

AT+CPIN

+

CPIN

: NOT READY SIM Card is not ready.

+

CPIN

: NOT INSERTED SIM Card is not inserted.

+CSQN: <rssi>,<ber>

Displays signal strength and channel bit

error rate

when <rssi>,<ber>values change.

AT+EXUNSOL="

SQ",1

+SIMTONE: 0 The generated tone playing is stopped or

completed. AT+SIMTONE

+STTONE: 0 The SIM Toolkit tone playing is stopped

or completed. AT+STTONE

+CR: <serv>

An intermediate result code is

transmitted during connect negotiation

when the TA has determined the speed

and quality of service to be used, before

any error control or data compression

reports are transmitted, and before any

final result code (e.g. CONNECT)

appears.

AT+CR=1

+CUSD:

<n>[,<str_urc>[,<dcs>]]

Indicates an USSD response from the

network, or network initiated operation. AT+CUSD=1

RING An incoming call signal from network is

detected.

NORMAL POWER DOWN

SIM800 is powered down by the

PWRKEY pin or AT command

“AT+CPOWD=1”.

+

CMTE

: <n> The module temperature is abnormal.

Refer to hardware document for details. AT+CMTE=1

UNDER-VOLTAGE

POWER DOWN Under-voltage automatic power down.

UNDER-VOLTAGE

WARNNING under-voltage warning

OVER-VOLTAGE POWER

DOWN Over-voltage automatic power down.

OVER-VOLTAGE

WARNNING over-voltage warning

CHARGE-ONLY MODE The module is charging by charger.

(require hardware support)

RDY Power on procedure is completed, and

the module is ready to operate at fixed

baud rate. (This URC does not appear

when auto-bauding function is active).

AT+IPR=<rate>

<rate> is not 0

Call Ready Module is powered on and phonebook

initialization procedure is over. AT+CIURC=1

SMS Ready Module is powered on and SMS

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initialization procedure is over.

+

CFUN

: <fun> Phone functionality indication (This

URC does not appear when

auto-bauding function is active).

AT+IPR=<rate>

<rate> is not 0

[<n>,]CONNECT OK TCP/ UDP connection is successful AT+CIPSTART

CONNECT TCP/UDP connection in channel mode is

successful

[<n>,]CONNECT FAIL TCP/UDP connection fails AT+CIPSTART

[<n>,]ALREADY

CONNECT

TCP/UDP connection exists AT+CIPSTART

[<n>,]SEND OK Data sending is successful

[<n>,]CLOSED TCP/UDP connection is closed

RECV FROM: <IP

ADDRESS>: <PORT>

shows remote IP address and port

(only in single connection mode)

AT+CIPSRIP=1

+IPD, <data

size>,<TCP/UDP>:<data>

display transfer protocol in IP header to

received data or not (only in single

connection mode)

AT+CIPHEAD

AT+CIPSHOWTP

+RECEIVE,<n>,<length> Received data from remote client (only

in multiple connection mode)

REMOTE IP: <IP

ADDRESS>

Remote client connected in

+CDNSGIP: 1,<domain

name>,<IP>[,<IP2>]

DNS successful AT+CDNSGIP

+CDNSGIP:0,<dns error

code>

DNS failed

+PDP: DEACT GPRS is disconnected by network

+SAPBR <cid>: DEACT The bearer based on IP connection of

SIMCom application is deactivated.

+HTTPACTION:

<Method>,<StatusCode>,<Da

taLen>

Indicates HTTP method, Status Code

responded by remote server and the

length of data got.

AT+HTTPACTIO

N=<Method>

+FTPGET: 1,<res> FTPGET session AT+FTPGET=1

+FTPPUT: 1,1,<maxlength> It is ready to upload data. AT+FTPPUT

+FTPPUT: 1,<res> FTP return result AT+FTPPUT

+FTPDELE: 1,<res> FTP delete session AT+FTPDELE

+FTPSIZE: 1,<res>,<size> FTP size session AT+FTPSIZE

+FTPMKD: 1,<res> FTP create directory (not supported for

all versions)

AT+FTPMKD

+FTPRMD: 1,<res> FTP delete directory (not supported for

all versions)

AT+FTPRMD

+FTPLIST: 1,<res> FTP list session (not supported for all AT+FTPLIST

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versions)

+CGREG:

<stat>[,<lac>,<ci>]

Network Registration Status AT+CGREG=<n>

ALARM RING

+CALV: <n>

Indicate expired alarm. AT+CALA=<time

>[,<n>[,<recurr>]]

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20 AT Commands Examples

20.1 Profile Commands

Demonstration Syntax Expect Result

The AT Command

interpreter actively

responds to input.

AT OK

Display the product

name and the product

release information.

ATI SIM800 R11.08

OK

Display product

identification

information: the

manufacturer, the

product name and the

product revision

information.

AT+GSV SIMCOM_Ltd

SIMCOM_SIM800H

Revision: 1308B01SIM800H32

OK

Display current

configuration, a list of

the current active

profile parameters.

AT&V [A complete listing of the active profile]

OK

Reporting of mobile

equipment errors. The

default CME error

reporting setting is

disabled. Switch to

verbose mode Displays

a string explaining the

error in more details.

AT+CMEE=?

AT+CMEE?

AT+CSCS=?

AT+CSCS="TEST"

AT+CMEE=2

AT+CSCS="TEST"

+CMEE: (0-2)

OK

+CMEE: 1

OK

+CSCS:

("IRA","GSM","UCS2","HEX","PCCP","PCDN

","8859-1")

OK

ERROR

OK

+CME ERROR: invalid input value

Store the current

configuration in

nonvolatile memory.

When the board is reset,

the configuration

ATE0&W

AT

[Reset the board]

AT

OK

[No echo]

OK

[No echo]

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changes from the last

session are loaded.

ATE1&W

AT

OK

[No echo]

OK

[Echo on]

OK

Set the ME to minimum

functionality

AT+IPR？

AT+CFUN=0

AT+IPR=115200

AT+IPR?

AT+CFUN=0

+IPR: 0

OK

+CPIN: NOT READY

OK

+IPR: 115200

OK

+CPIN: NOT READY

ME has entered full

functionality mode

AT+CFUN? +CFUN:1

OK

20.2 SIM Commands

Demonstration Syntax Expect Result

List available

phonebooks, and select

the SIM phonebook.

AT+CPBS=?

AT+CPBS="SM"

+CPBS: ("SM","ME","ON","FD")

OK

Display the ranges of

phonebook entries and

list the contents of the

phonebook.

AT+CPBR=?

AT+CPBR=1,10

+CPBR: (1-250),40,14

OK

[a listing of phonebook contents]

OK

Write an entry to the

current phonebook.

AT+CPBW=,"13918

18xxxx",129,"Danie

l"

AT+CPBR=1,10

OK

[a listing of phonebook contents]

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OK

Find an entry in the

current phonebook

using a text search.

AT+CPBF="Daniel"

+CPBF: 5, "13918186089",129,"Daniel"

OK

Delete an entry from

the current phonebook

specified by its position

index.

AT+CPBW=2

AT+CPBR=1,10

OK

[a listing of phonebook contents]

OK

Switch on engineering

mode

AT+CENG =1,1

AT+CENG?

OK

+CENG: 1,1

+CENG:

0,"0081,55,00,460,00,31,f9a1,08,05,1816,255"

+CENG: 1,"0014,40,15,f2a1,460,00,1816"

+CENG: 2,"0012,27,48,f411,460,00,1816"

+CENG: 3,"0565,23,55,f1a1,460,00,1816"

+CENG: 4,"0584,19,24,f1a3,460,00,1816"

+CENG: 5,"0027,17,13,f412,460,00,1816"

+CENG: 6,"0028,15,14,6253,460,00,1823"

OK

Switch on engineering

mode, and activate the

URC report of network

information

AT+CENG =2,1

AT+CENG?

OK

+CENG: 2,1

+CENG:

0,"0081,55,00,460,00,31,f9a1,08,05,1816,255"

+CENG: 1,"0014,42,15,f2a1,460,00,1816"

+CENG: 2,"0012,25,48,f411,460,00,1816"

+CENG: 3,"0565,21,55,f1a1,460,00,1816"

+CENG: 4,"0584,19,24,f1a3,460,00,1816"

+CENG: 5,"0027,17,13,f412,460,00,1816"

+CENG: 6,"0028,17,14,6253,460,00,1823"

OK

Switch on engineering

mode, and with limited

network information

AT+CENG =3,1

AT+CENG?

OK

+CENG: 3,1

+CENG: 0,"460,00,1816,f9a1,31,56"

+CENG: 1,"460,00,1816,f2a1,15,38"

+CENG: 2,"460,00,1816,f411,48,26"

+CENG: 3,"460,00,1816,f1a3,24,17"

+CENG: 4,"460,00,1816,f412,13,16"

+CENG: 5,"460,00,1823,6253,14,16"

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+CENG: 6,"460,00,1816,f2c3,43,14"

OK

Switch on engineering

mode, and

with extern

information

AT+CENG =4,1

AT+CENG?

OK

+CENG: 4,1

//Dedicated mode:

+CENG:

0,"0081,47,00,460,00,31,f9a1,08,05,1816,00,-6

6,0,0,64,7,64,0,0,0,EFR"

//Idle mode:

+CENG:

0,"0081,56,00,460,00,31,f9a1,08,05,1816,255,-

57,177,617,x,x,x,x,x,x"

+CENG:

1,"0014,35,15,f2a1,460,00,1816,91,531"

+CENG:

2,"0012,25,48,f411,460,00,1816,51,491"

+CENG:

3,"0565,24,55,f1a1,460,00,1816,45,485"

+CENG:

4,"0027,20,13,f412,460,00,1816,31,471"

+CENG:

5,"0584,20,24,f1a3,460,00,1816,29,469"

+CENG:

6,"0028,16,14,6253,460,00,1823,18,455"

OK

Perform a net survey to

show all the cells’

Information

AT+CELLIST=?

AT+CELLIST=1,50

AT+CELLIST?

AT+CELLIST

+CELLIST: (0,1),(10-7200)

OK

+CELLIST: 1

OK

+CELLIST: 460,00,81,42,f9a1,1816,31

+CELLIST: 460,00,14,34,f2a1,1816,15

+CELLIST: 460,00,572,25,f2c3,1816,43

+CELLIST: 460,00,19,21,f2a3,1816,27

+CELLIST: 460,00,584,19,f1a3,1816,24

+CELLIST: 460,01,97,58,b5f0,144f,30

OK

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20.3 General Commands

Demonstration Syntax Expect Result

Display the current

network operator that

the handset is currently

registered with.

AT+COPS? +COPS: 0,0,"CHINA

MOBILE"

OK

Display a full list of

network operator

names.

AT+COPN +COPN: "20201",

"COSMO"

[skip a bit]

+COPN: "901012","Maritime Comm Partner

AS"

OK

reduce its functionality.

This will deregister the

handset from the

network.

AT+IPR?

AT+CFUN=0

[wait for deregister]

ATD6241xxxx;

AT+CFUN=1

+IPR: 0

OK

ERROR

OK

Request the IMSI AT+CIMI 460008184101641

OK

20.4 Call Control Commands

Demonstration Syntax Expect Result

Make a voice call ATD6241xxxx; OK

MS makes a voice call

Hang up a call ATH OK

Call dropped

Make a voice call using

the last number facility.

The initial call is

established and then

cancelled. The second

call is made using the

previous dial string.

ATD6241xxxx;

ATH

ATDL

OK

Example of a MT voice

call

Make MT voice call to

MS.

ATA

ATH

RING

OK[accept call]

OK[hang up call]

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Call related to

supplementary service:

AT+CHLD. This

Command provides

support for call waiting

functionality.

AT+CHLD=<N> Return value:(0,1,1x,2,2x,3,4)

Terminate current call

and accept waiting call.

Establish a voice call

from EVB, receive an

incoming call

(incoming call accepts

waiting status),

terminate active call

and accept incoming

call. Note call waiting

must be active for this

option – use

"AT+CCWA=1,1”

before running this

demonstration.

AT+CCWA=1,1

ATD6241xxxx;

AT+CHLD=1

OK

RING

+CCWA: "62418148 ",129,1,""

OK

Set current call to busy

state and accept waiting

call.

Establish a voice call

from EVB, receive an

incoming call

(incoming call accepts

waiting status), place

active call on hold and

switch to incoming call.

Terminate active call

and switch back to

original call. Note call

waiting must have been

previously enabled for

this demonstration to

work.

ATD6241xxxx;

AT+CHLD=2

AT+CHLD=1

OK

RING

+CCWA: "13918186089",129,1,""

OK

OK

<incoming call terminated, dialed number now

active>

Switch between active

and held calls.

Establish a voice call

from EVB, receive an

ATD6241xxxx;

AT+CHLD=2

OK

RING

+CCWA: "13918186089",129,1,""

OK

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incoming call

(incoming call accepts

waiting status), place

active call on hold and

switch to incoming call.

Switch between both

calls, placing each in

the hold state whilst the

other is active before

terminating each one.

This feature relies on

knowing each call’s ID.

This is done using the

List Current Calls

(AT+CLCC) Command.

A call’s ID is required

to switch between held

and active calls. Held

calls are not

automatically resumed

when all other calls are

terminated. They need

to be made active using

the AT+CHLD=2x

Command. Note call

waiting must have been

previously enabled for

this demonstration to

work.

AT+CHLD=21

AT+CLCC

AT+CHLD=22

AT+CHLD=12

AT+CHLD=11

OK

+CLCC: 1,0,0,0,0,"62418148",129,""

+CLCC: 2,1,1,0,0, "13918186089",129, ""

OK

OK

OK

OK

Send busy status to

incoming waiting caller.

Establish a voice call

from EVB, receive an

incoming call

(incoming call accepts

waiting status), send

‘busy’ status to waiting

mobile. Note call

waiting must have been

previously enabled for

this demonstration to

work.

ATD6241xxxx;

AT+CHLD=0

OK

RING

+CCWA: "13918186089",129,1,""

OK

<incoming call sent busy msg, current call

retained>

Drop all calls on hold.

Establish a voice call

ATD6241xxxx;

OK

RING

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from EVB, receive an

incoming call

(incoming call accepts

waiting status), switch

to incoming call and

drop all waiting calls.

Note call waiting must

have been previously

enabled for this

demonstration to work.

AT+CHLD=2

AT+CHLD=0

+CCWA: "13918186089",129,1,""

OK

OK

20.5 SIM Toolkit Commands

Please refer to SIM800 Series_STK_Application Note.DOC

20.6 Audio Commands

Demonstration Syntax Expect Result

DTMF tones AT+CLDTMF=2,

"1,2,3,4,5"

OK

AT+CLDTMF=2,”A

,B,C,D,E,F”,50

OK

20.7 SMS Commands

Demonstration Syntax Expect Result

Set SMS system into

text mode, as opposed

to PDU mode.

AT+CMGF=1 OK

Send an SMS to myself.

AT+CSCS="GSM"

AT+CMGS="+8613

91818xxxx"

>This is a test

<Ctrl+Z>

OK

+CMGS: 34

OK

Unsolicited notification

of the SMS arriving

+CMTI: "SM",1

Read SMS message that

has just arrived.

Note: the number

should be the same as

that given in the

+CMTI notification.

AT+CMGR=1 +CMGR: "REC UNREAD",

"+8613918186089", "","02

/01/30,20:40:31+00"

This is a test

OK

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Reading the message

again and change the

status to "READ”

from ”UNREAD”

AT+CMGR=1 +CMGR: "REC READ",

"+8613918186089","", "02/01/30,20:40:31+00"

This is a test

OK

Send another SMS to

myself.

AT+CMGS="+8613

91818xxxx"

>Test

again<Ctrl+Z>

+CMGS: 35

OK

Unsolicited notification

of the SMS arriving

+CMTI: "SM",2

List all SMS messages.

Note:”ALL” must be in

uppercase.

AT+CMGL="ALL"

+CMGL: 1, "REC READ","+8613918186089",

"", "02/01/30,20:40:31+00"

This is a test

+CMGL: 2, "REC UNREAD"," ",

"+8613918186089", ""

,"02/01/30,20:45:12+00"

Test again

OK

Delete an SMS

message.

AT+CMGD=1 OK

List all SMS messages

to show message has

been deleted.

AT+CMGL="ALL"

+CMGL: 2, "REC READ", "+8613918186

089","","02/01/30,20:45:12+00"

Test again

OK

Send SMS using

Chinese characters

AT+CSMP=17,167,

2,25

AT+CSCS="UCS2"

AT+CMGS="00310

0330039003100380

0310038003x003x0

03x003x"

>4E014E50<Ctrl+Z

>

OK

+CMGS: 36

OK

20.8 GPRS Commands

Demonstration Syntax Expect Result

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Establish a GPRS

context.

Setup modem driver

Setup dial up

connection with

*99#

Run internet

explorer

Should be able to surf the web using Internet

explorer.

There are two GPRS

Service Codes for the

ATD Command: Value

88 and 99.

Establish a connection

by service code 99.

Establish a connection

by service code 99 and

using CID 1

ATD*99#

ATD*99***1#

CONNECT

Check if the MS is

connected to the GPRS

network

Detach from the GPRS

network

Check if the MS is

connected to the GPRS

network

AT+CGATT?

AT+CGATT=0

AT+CGATT?

+CGATT: 1

OK

+CGATT: 0

OK

Check the class of the

MS

AT+CGCLASS? +CGCLASS: B

OK

Establish a context

using the terminal

equipment: defines CID

1

and sets the PDP type to

IP, access

point name and IP

address aren’t set.

AT+CGDCONT=1,

"IP","CMNET"

ATD*99#

OK

CONNECT

Cancel a context using

the terminal equipment

AT+CGDCONT=1,

"IP","CMNET"

ATD*99#

OK

CONNECT

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Pause data transfer and

enter Command mode

by +++

Stop the GPRS data

transfer

+++

ATH

OK

Reconnect a context

using the terminal

equipment

Resume the data

transfer

AT+CGDCONT=1,

"IP","CMNET"

ATD*99#

+++

ATO

OK

CONNECT

OK

CONNECT

*Quality of Service (QOS) is a special parameter of a CID which consists of several parameters

itself.

The QOS consists of

The precedence class

The delay class

The reliability class

The peak throughput class

The mean throughput class

And is decided in "requested QOS” and "minimum acceptable QOS”.

All parameters of the QOS are initiated by default value (=0) except the reliability class is 3. To

define a QOS use the AT+CGQREQ or AT+CGQMIN Command.

Overwrite the

precedence class of

QOS of CID 1 and sets

the QOS of

CID 1 to be present

AT+CGQREQ=1,0,

0,3,0,0

OK

Response: all QOS

values of the activated

CID.

AT+CGQREQ? +CGQREQ: 1,0,0,3,0,0

+CGQREQ: 2,0,0,3,0,0

+CGQREQ: 3,0,0,3,0,0

OK

Set the QOS of CID 1

to not present.

Once defined, the CID

can be activated.

AT+CGQREQ=1 OK

Activate CID 1, if the

CID is already active,

the mobile returns OK

at once. If no CID is

defined the mobile

AT+CGACT=1,1

AT+CGACT=1,3

OK

+CME ERROR: requested service option not

subscribed.

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responds +CME

ERROR: invalid index.

Note: If the mobile is

NOT attached

by AT+CGATT=1

before activating, the

attachment is

automatically done by

the AT+CGACT

Command.

Use the defined and

activated CID

to get online. The

mobile can be

connected using the

parameters of appointed

CID or using default

parameter

AT+CGDATA="PP

P", 1

CONNECT

The mobile supports Layer 2 Protocol (L2P) PPP only.

Note: If the mobile is NOT attached by AT+CGATT=1 and the CID is NOT activated before

connecting, attaching and activating is automatically done by the AT+CGDATA Command.

Some providers require using an APN to establish a GPRS connection. So if user uses the

Microsoft Windows Dial-Up Network and ATD*9… to connect to GPRS, user must provide the

context definition as part of the modem definition (Modem properties/Connection/Advanced…

/Extra settings.) As an alternative, user can define and activate the context in a terminal program

(e.g. Microsoft HyperTerminal) and then use the Dial-Up Network to send only the ATD

Command.

20.9 TCPIP Commands

Please refer to SIM800 Series_TCPIP_Application Note.doc

20.10 IP Commands

Please refer to SIM800 Series_IP_Application Note.doc. Chapter 3.1 describles how to config

bearer contexts of HTTP and FTP applications.

20.11 PING Commands

Demonstration Syntax Expect Result

Ping Request AT+CGATT?

+CGATT: 1

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AT+CSTT="CMNE

T"

AT+CIICR

AT+CIFSR

AT+CIPPING="ww

w.google.cn"

OK

10.78.245.128

+CIPPING: 1,"203.208.37.99",70,239

+CIPPING: 2,"203.208.37.99",53,238

+CIPPING: 3,"203.208.37.99",60,239

+CIPPING: 4,"203.208.37.99",50,239

OK

Other Device Ping

To The Module

On the Modem：

AT+CGATT?

AT+CSTT="CMNE

T"

AT+CIPBEIPING=1

(If on 6252

platform, don’t need

this at)

AT+CIICR

AT+CIFSR

On the Other

Device:

AT+CIPPING="10.

78.245.128"

On the Modem：

+CGATT: 1

OK

10.78.245.128

On the Other Device:

+CIPPING: 1," 10.78.245.128",70,239

+CIPPING: 2," 10.78.245.128",53,238

+CIPPING: 3," 10.78.245.128",60,239

+CIPPING: 4," 10.78.245.128",50,239

OK

IP Filter Setting AT+CIPFLT=1,1,

"198.211.19.12","25

5.255.0.0"

AT+CIPFLT=1,,

"10.43.21.69","255.

OK

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0.0.0”

AT+CIPFLT=0,1

AT+CIPFLT=2

OK

Set the Mode When

Receiving an IP

Packet

AT+CIPCTL=0

AT+CIPCTL=1

AT+CIPCTL=2

OK

20.12 HTTP and FTP Commands

Please refer to SIM800 Series_IP_Application Note.doc

20.13 GSM Location Commands

Demonstration Syntax Expect Result

Activate bearer profile AT+SAPBR=3,1,"C

ontype","GPRS"

AT+SAPBR=3,1,"A

PN","CMNET"

AT+SAPBR =1,1

AT+SAPBR=2,1

OK

+SAPBR: 1,1,"10.89.193.1"

OK

Get location AT+CIPGSMLOC=

1,1

AT+CIPGSMLOC=

2,1

+CIPGSMLOC:

0,121.354848,31.221402,2011/01/26,02:41:06

OK

+CIPGSMLOC: 0,2011/01/26,03:12:58

OK

Deactivate bearer

profile

AT+SAPBR=0,1 OK

20.14 EMAIL Commands

Please refer to SIM800 Series_Email_Application Note.doc.

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20.15 MMS Commands

Demonstration Syntax Expect Result

Initialization AT+CMMSINIT OK

Configuration AT+CMMSCURL=

“mmsc.monternet.co

m”

AT+CMMSCID=1

AT+CMMSPROTO

=“10.0.0.172”,80

AT+CMMSSENDC

FG=6,3,0,0,2,4

OK

Active bearer profile AT+SAPBR=3,1,"C

ontype","GPRS"

AT+SAPBR=3,1,"A

PN","CMWAP"

AT+SAPBR=1,1

AT+SAPBR=2,1

OK

+SAPBR: 1,1,"10.89.193.1"

OK

Send MMS AT+CMMSEDIT=1

AT+CMMSDOWN

=“PIC”,12963,2000

0

AT+CMMSDOWN

=“TITLE”,3,5000

AT+CMMSRECP=“

13918181818”

AT+CMMSSEND

OK

CONNECT

... ...

OK

CONNECT

... ...

OK

……

OK

Receive MMS

When received a MMS

push message,UART

will output

AT+CMMSEDIT=0

AT+CMMSRECV=

3

OK

+CMMSRECV: "+8613818181818",

"2008-05-02, 03:38:12","", 26670

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message,such as

“+CMTI:

"SM",3,"MMS PUSH"”

AT+CMGD=3

1, "image0.jpg",7,26625

OK

Receive MMS when the

MMS push message is a

concatenated message.

UART output

messages:

+CMTI: "SM",1,"MMS

PUSH",2,1

+CMTI: "SM",2,"MMS

PUSH",2,2

+CMTI: "SM",1,"MMS

PUSH"

AT+CMMSEDIT=0

AT+CMMSRECV=

1

AT+CMGD=1

OK

+CMMSRECV:

"+85266097746","2009-04-15,10:41:21","",49

1,"text0.txt",4,7

OK

Read a file of MMS

AT+CMMSREAD=

1

+CMMSREAD: "image0.jpg", 26625

……

OK

Exit MMS function AT+CMMSTERM OK

20.16 DDET Commands

Demonstration Syntax Expect Result

enable DTMF detection

AT+DDET=1,0,0

//start DDET,

interval is 0, report

mode is 0

OK

Set up a call connection

ATD***********; OK

If module detected DTMF, URC will be

reported via serial port

+DTMF:1 //report DTMF value

+DTMF:2

+DTMF:3

Receive an incoming

call

ATA OK

If module detected DTMF, URC will be

reported via serial port

+DTMF:1 //report DTMF

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value

+DTMF:2

+DTMF:3

+DTMF:4

enable DTMF detection

AT+DDET=1,1000,

1

//start DDET,

interval is 1000ms,

report mode is 1

OK

Set up a call connection

ATD***********; OK

If module detected DTMF, URC will be

reported via serial port, the minimal interval

between two identic DTMF is 1000ms.

+DTMF: 1,160 //report DTMF

value and last time

+DTMF: 2,300

+DTMF: 3,200

Receive an incoming

call

ATA OK

If module detected DTMF, URC will be

reported via serial port

+DTMF: 1,160 //report

DTMF value and last time

+DTMF: 2,300

+DTMF: 3,200

20.17 RECORD Commands

Demonstration Syntax Expect Result

Start record AT+CREC=1,1,0

//start record

OK

// the record id is 1, format is AMR

Stop record AT+CREC=2

//stop record

OK

+CREC: 2,1,0,15,16386

//URC will be reported after stopping, which

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indicate the format,including record id, time in

seconds, length in bytes

Delete record AT+CREC=3,1

//delete record with

id 1

OK

Play record file AT+CREC=4,1,0,80

//play record file,

channel is 0, the

volume is 80

OK

Stop play record file AT+CREC=5

//stop play record

file

+CREC: 0

OK

//URC is reported to show statues IDLE

Get record status AT+CREC？

//get record status

+CREC: 2

OK

//Rrecording ,delete and other play operations

are not allowed when playing

List record file

information

AT+CREC=7

//list record file list

+CREC: 7,1,7728,0

+CREC: 7,2,53820,1

OK

// two record file, one Is

Get record file data AT+CREC=6,1,200,

0

//get 200 bytes from

record file with

offset 0 to file head

+CREC: 6,1,200

2321414D520A04923231D828E7B0E222B6D0

B604941AEC23377C8A442AFC93440450E01

33334D31577CB8E88FE0450A54AD57AC230

86C24529FC0422434276AB0E88DCF481E23

A0419F050336489D54CB57224B0042119466

B5B5521D542FF354204C0422385A00B20DB

C67DC322049D8708488970630CECBFE40004

C0892EF5914BD62A234C0B5804334110F881

8197ECA9D7F02E046EDAD5EBA75928D948

FBB19E046EAF1C3A90168351C302DF88044

60C1409B18966E0187F88B404CA88F4F891B

FE72BCF45D7

OK

//data in Hex format

Query free space AT+CREC=8

//query free memory

space

+CREC: 8,938600

OK

//the free memory space is 938600 bytes

Create record file AT+CREC=9,0 OK

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directory //create record file

directory on system

FAT

20.18 TTS Commands

Demonstration Syntax Expect Result

Play synthetic speech

with UCS2 coding text

AT+CTTS=1,"6B22

8FCE4F7F75288BE

D97F3540862107C

FB7EDF"

//text in UCS2

coding format

，

context of the text is

“

欢迎使用语音合

成系统

”.

OK

//speech synthetized successfully, played locally.

+CTTS: 0

//speech played over. Note: User needs to wait

thisresponse to play next speech!

Play synthetic speech

with ASCII coding text

AT+CTTS=2,"hello

，欢迎使用语音合

成系统"

// text in ASIIC

coding format.

Chinese in GBK

coding format.

OK

//speech synthetized

Successfully played locally.

+CTTS: 0

//speech played over. Note: User needs to wait

thisresponse to play next speech!

Stop playing TTS AT+CTTS=0

//Stop playing

synthetic speech

OK

//speech played over.

Set parameters of the

TTS playing

AT+CTTSPARAM=

50, 0,50,25,1

// set params of the

TTS playing

OK

// set params over.

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21 ATC Differences among SIM800 Series

21.1 AT+SIDET

SIM800V, SIM840V,SIM800W,

SIM840W,SIM800W16,SIM840W16

SIM800H,SIM800L,SIM800,SIM800M64,

SIM808,SIM800C,SIM800A,SIM800F,

SIM800C-DS

AT+SIDET=?

+SIDET: (0,1),(0-16)

OK

AT+SIDET=?

If it is SIM800, SIM800M64,SIM800C,

SIM800A,SIM800F

+SIDET: (0, 2 ),(0-16)

OK

If it is SIM800H, SIM800L, SIM808, SIM868

or SIM800C-DS

+SIDET: (0-3),(0-16)

OK

Difference:

21.2 AT+CMIC

SIM800V, SIM840V,SIM800W,

SIM840W,SIM800W16,SIM840W16

SIM800H,SIM800L,SIM800,SIM800M64,

SIM808,SIM800C,SIM800A,SIM800F,

SIM800C-DS

AT+CMIC=?

+CMIC: (0,1),(0-15)

OK

AT+CMIC=?

If it is SIM800, SIM800M64,SIM800C,

SIM800A,SIM800F

+CMIC: (0, 2 ),(0-15)

OK

If it is SIM800H, SIM800L, SIM808, SIM868

or SIM800C-DS

+CMIC: (0-3),(0-15)

OK

Difference:

The default gain level of main audio channel is 10.

The default gain level of aux audio channel is 11 in SIM800H, SIM800L, SIM808, SIM868

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and SIM800C-DS.

The default gain level of aux audio channel is 9 in SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16 and SIM840W16.

The default gain level of aux audio channel is 8 in SIM800C, SIM800A and SIM800F.

21.3 AT+CBAND

SIM800V, SIM800W,SIM800W16,SIM800A

SIM840V,SIM840W,SIM840W16,SIM800H,SI

M800L, SIM800,SIM800M64,SIM800G,

SIM808,SIM800C,SIM800F,SIM868,SIM800C-

DS

AT+CBAND=?

+CBAND:

(EGSM_MODE,DCS_MODE,EGSM_DCS

_MODE,ALL_BAND)

OK

AT+CBAND=?

+CBAND:

(EGSM_MODE,DCS_MODE,GSM850_MOD

E,PCS_MODE,EGSM_DCS_MODE,GSM850

_PCS_MODE,EGSM_PCS_MODE,ALL_BAN

D)

OK

Difference:

SIM840V, SIM840W, SIM840W16,SIM800H, SIM800L, SIM800, SIM800M64, SIM800G,

SIM808, SIM800C, SIM800F, SIM868 and SIM800C-DS support Quad-band.

21.4 AT+CHFA

SIM800V, SIM840V,SIM800W,

SIM840W,SIM800W16,SIM840W16

SIM800H,SIM800L,SIM800,SIM800M64,

SIM808,SIM800C,SIM800A

AT+CHFA=?

+CHFA: (0 = NORMAL_AUDIO, 1 =

AUX_AUDIO)

OK

AT+CHFA=?

If it is SIM800 and SIM800M64

+CHFA: (0 = NORMAL_AUDIO, 2 =

HANDFREE_AUDIO,4=PCM_AUDIO)

OK

If it is SIM800H,SIM800L, SIM808, SIM868

or

SIM800C-DS

+CHFA: (0 = NORMAL_AUDIO, 1 =

AUX_AUDIO, 2 = HANDFREE_AUDIO,

3 = AUX_HANDFREE_AUDIO, 4 =

PCM_AUDIO)

OK

If it is SIM800C,SIM800A,SIM800F

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+CHFA: (0 = NORMAL_AUDIO, 2 =

HANDFREE_AUDIO)

OK

Difference:

In SIM800H, SIM800L, SIM808, SIM868 and SIM800C-DS, channel 2 is the same with

channel 0, channel 3 is the same with channel 1.channel 4 is multiplexed.

SIM800G can not support this AT command.

21.5 AT+SGPIO

SIM800V, SIM840V,SIM800W,

SIM840W,SIM800W16,SIM840W16

SIM800H,SIM800L,SIM800,

SIM808,SIM800M64

AT+SGPIO=?

+SGPIO: (0-1),(1-11),(0-1),(0-1)

OK

AT+SGPIO=?

+SGPIO: (0-1),(1-7),(0-1),(0-1)

OK

Difference:

GPIO4 and GPIO5 only support the read operation in SIM800H, SIM800L, SIM800,

SIM800M64 and SIM808.

SIM800, SIM800M64 and SIM808 do not support GPIO1.

SIM800G and SIM800C, SIM800A, SIM800F, SIM868 and SIM800C-DS can not support this

command.

21.6 AT+SJDR

Jamming detection PIN takes effect only in SIM800H, SIM800L, SIM800, SIM800M64,

SIM808, SIM800C, SIM800A, SIM800F and SIM800C-DS.The Jamming detection PIN is

defined as follows.

Module Type Jamming detection PIN

SIM800H/SIM800L PIN5

SIM800/SIM800M64 PIN67

SIM808 PIN63

SIM800C PIN29

SIM800A PIN67

SIM800F PIN67

SIM800C-DS PIN29

SIM800V, SIM840V, SIM800W, SIM840W, SIM800W16 and SIM840W16 have no jamming

detection PIN to indicate JD status, only report jamming status via URC from serial port.

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SIM800 Series_AT Command Manual_V1.10 380 2016-02-01

21.7 AT+CREC

Play in call support AMR format and WAV format with 8K 16bit in SIM800H, SIM800,

SIM800M64, SIM808, SIM800C, SIM800A, SIM800F, SIM868 and SIM800C-DS.

The value of parameter <inputpath> is only "0" in SIM800 and SIM800M64.

21.8 AT+CTTSPARAM

SIM800V,SIM840V, SIM800W,

SIM840W,SIM800W16,SIM840W16

SIM800H,SIM800,SIM800M64

AT+CTTSPARAM?

+CTTSPARAM: 50,0,50,50,1

OK

AT+CTTSPARAM?

+CTTSPARAM: 50,0,50,50,0

OK

Difference:

Default value of output channel is different.

21.9 AT+CADC

SIM800V, SIM840V,SIM800W,SIM840W,

SIM800W16,SIM840W16,SIM800H,

SIM800L,SIM800,SIM800M64,SIM800C,

SIM800A,SIM800F,SIM800C-DS,SIM868

SIM808

AT+CADC?

+CADC: 1,603

OK

AT+CADC?

+CADC: 1,958

+CADC: 1,2223

OK

Difference:

SIM808 has two ADC channels and others have only one ADC channel.

21.10 AT+CSCLK

SIM800V, SIM840V,SIM800W,SIM840W,

SIM800W16,SIM840W16,SIM800H,

SIM800L,SIM800,SIM800M64,SIM800C,

SIM800A,SIM800F,SIM800C-DS,SIM868

SIM808

AT+CSCLK=?

+CSCLK: (0-2)

AT+CSCLK=?

+CSCLK: (0-1)

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SIM800 Series_AT Command Manual_V1.10 381 2016-02-01

OK OK

Difference:

SIM808 does not support AT+CSCLK=2.

21.11 AT+CMMSDOWN

SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16,SIM840W16,SIM800L,SIM80

0H, SIM800, SIM800M64, SIM800G,

SIM800C-DS

SIM808,SIM800C,SIM800A,SIM800F,SIM868

AT+CMMSDOWN=?

+CMMSDOWN: "PIC", (1-307200),

(5000-),"NAME"

+CMMSDOWN: "TEXT", (1-15360),

(2000-),"NAME"

+CMMSDOWN: "TITLE", (1-40), (2000-)

OK

AT+CMMSDOWN=?

+CMMSDOWN: "PIC", (1-307200),

(5000-),"NAME"

+CMMSDOWN: "TEXT", (1-15360),

(2000-),"NAME"

+CMMSDOWN: "TITLE", (1-40), (2000-)

+CMMSDOWN: "AUDIO_ACC", (1-307200),

(5000-),"NAME"

+CMMSDOWN: "AUDIO_AMR", (1-307200),

(5000-),"NAME"

+CMMSDOWN: "AUDIO_BASIC",

(1-307200), (5000-),"NAME"

+CMMSDOWN: "AUDIO_MID", (1-307200),

(5000-),"NAME"

+CMMSDOWN: "AUDIO_MPEG",

(1-307200), (5000-),"NAME"

+CMMSDOWN: "VIDEO_3GPP", (1-307200),

(5000-),"NAME"

+CMMSDOWN: " VIDEO _MP4", (1-307200),

(5000-),"NAME"

OK

21.12 AT+CFGRI

SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16,SIM840W16,SIM800L,SIM80

0H, SIM800, SIM800M64, SIM800G,

SIM800C-DS

SIM808, SIM800C, SIM800A, SIM800F,

SIM868

AT+CFGRI?

+CFGRI: 0

AT+CFGRI?

+CFGRI: 2

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SIM800 Series_AT Command Manual_V1.10 382 2016-02-01

OK OK

Difference:

Default value is different.

21.13 AT+CLCK

SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16, SIM840W16, SIM800L,

SIM800H, SIM800, SIM800M64, SIM800G,

SIM808, SIM800C, SIM800A, SIM800F,

SIM868

SIM800C-DS

AT+CLCK=?

+CLCK:

("AO","OI","OX","AI","IR","FD","SC"

,"PN","PU","PP")

OK

AT+CLCK=?

+CLCK:

("AO","OI","OX","AI","IR","SC","PN","P

U","PP")

OK

Difference:

SIm800C-DS has no value of "FD".

21.14 Only Part of Projects Support Following AT Commands

Chapter

AT command or function Supported by project

2.2.5 ATD><str> SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16, SIM840W16, SIM800L, SIM800H,

SIM800, SIM800M64, SIM800G, SIM808, SIM800C,

SIM800A, SIM800F,SIM868

2.2.3 ATD<n> ( if <n> is

USSD-string or

supplementary services)

SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16, SIM840W16, SIM800L, SIM800H,

SIM800, SIM800M64, SIM800G, SIM808, SIM800C,

SIM800A, SIM800F

2.2.39 AT+ICF SIM800V,SIM840V,SIM800W,SIM840W,SIM800W16,

SIM840W16,SIM800L,SIM800H,SIM800,

SIM800M64,SIM800G,SIM808

3.2.4 AT+CBST SIM800V,SIM840V,SIM800W,SIM840W,SIM800W16,

SIM840W16,SIM800L,SIM800H,SIM800,

SIM800M64,SIM800G,SIM808

6.2.10 AT+CMOD SIM800V,SIM840V,SIM800W,SIM840W,SIM800W16,

SIM840W16,SIM800L,SIM800H,SIM800,

SIM800M64,SIM800G,SIM808

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SIM800 Series_AT Command Manual_V1.10 383 2016-02-01

6.2.40 AT+SGPIO SIM800V,SIM840V,SIM800W,SIM840W,SIM800W16,

SIM840W16,SIM800L,SIM800H,SIM800,

SIM800M64,SIM800G,SIM808

6.2.41 AT+SPWM SIM800V,SIM840V,SIM800W,SIM840W,SIM800W16,

SIM840W16,SIM800L,SIM800H,SIM800,

SIM800M64,SIM800G,SIM808,SIM868

6.2.59 AT+CPCMCFG SIM800H,SIM800L,SIM800,SIM800M64,SIM808

6.2.60 AT+CPCMSYNC SIM800H,SIM800L,SIM800, SIM800M64,SIM808

6.2.61 AT+CANT SIM800H,SIM800L,SIM800,

SIM800M64,SIM808,SIM800C,SIM800A,SIM800F,SIM

868

6.2.63 AT+SD2PCM SIM800H,SIM800L,SIM800, SIM800M64,SIM808

6.2.64 AT+SKPD SIM800H,SIM800L,SIM800,

SIM800M64,SIM808,SIM800A,SIM800F

6.2.68 AT+CMNRP SIM800H,SIM800L,SIM800, SIM800M64

6.2.69 AT+CEGPRS SIM800H,SIM800L,SIM800, SIM800M64,SIM800C-DS

6.2.74 AT+ECHARGE SIM808

6.2.75 AT+SIMTIMER SIM800H,SIM800L,SIM800, SIM800G

6.2.76 AT+SPE SIM800H, SIM800L,SIM800, SIM800G, SIM800C,

SIM800A, SIM800F,SIM800C-DS,SIM868

6.2.77 AT+CCONCINDEX SIM808,SIM800C,SIM800A, SIM800F,SIM868

6.2.78 AT+SDMODE SIM808

6.2.79 AT+SRSPT SIM800H,SIM800L,SIM800,SIM800G,SIM808,SIM800

C, SIM800A,SIM800F,SIM868

10.2.4 AT+CIPBEIPING SIM800H, SIM800L,SIM800, SIM800M64,SIM808,

SIM800C,SIM800A,SIM800F,SIM800C-DS,SIM868

11.2.9 AT+HTTPHEAD SIM800H,SIM800L,SIM800,SIM800G

17 Record function

SIM800V, SIM840V, SIM800W, SIM840W, SIM800H,

SIM800, SIM800M64, SIM808,SIM800C,SIM800A,

SIM800F,SIM800C-DS,SIM868

18 TTS function SIM800V,SIM840V, SIM800W, SIM840W,SIM800H,

SIM800,SIM800M64,SIM800C

Note: SIM800H, SIM800 and SIM800C

only support Chinese

TTS.

19 AT commands of AOC SIM800V,SIM840V,SIM800W,SIM840W,SIM800W16,

SIM840W16,SIM800L,SIM800H,SIM800,SIM800M64,

SIM800G,SIM808

Smart Machine Smart Decision

SIM800 Series_AT Command Manual_V1.10 384 2016-02-01

Contact us:

Shanghai SIMCom wireless solutions Ltd.

Address: Building A, SIM Technology Building, No. 633 Jinzhong Road, Shanghai,

P. R. China 200335

Tel: +86 21 3252 3300

Fax: +86 21 3252 3020

URL: www.sim.com/wm

SIM800 Series_AT Command Manual_V1.10 Series AT Manual V1.10

SIM800%20Series_AT%20Command%20Manual_V1.10

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