ZTE MG3006 GSM Module User Manual GSM GPRS Module AT Command Mannual

ZTE Corporation GSM Module GSM GPRS Module AT Command Mannual

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Date Submitted2007-11-26 00:00:00
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Document Author: Administrator

MG3006 Module
ZTE MG3006 Module User Manual
VER: V 1.2
ZTE Corporation
ME3000 Module
Copyright Statement
Copyright © 2007 by ZTE Corporation
All rights reserved.
No part of this publication may be excerpted, reproduced, translated or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without the prior written permission of ZTE
Corporation.
is the registered trademark of ZTE Corporation. All other trademarks appeared in this manual are
owned by the relevant companies.
ZTE Corporation reserves the right to make modifications on print errors or update specifications in this manual
without prior notice.
ZTE Corporation keeps the right to make the final explanation to this manual.
ME3000 Module
With strong technical force, ZTE Corporation can provide CDMA/GPRS module customers with the following
all-around technical support:
1. Provide complete technical documentation;
2. Provide the development board used for R&D, test, production, after-sales, etc.;
3. Provide evaluations and technical diagnosis for principle diagram, PCB, test scenarios;
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ZTE Corporation provides customers with onsite supports, and also you could get supports through telephone,
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The module website module.ztemt.com.cn provides the relevant industry information and module technical
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ME3000 Module
Preface
Summary
This manual is applicable for ME3000, ME3006, ME3030 and ME3036 modules. Taking ME3000 for example,
this manual describes the AT command interfaces of the modules, which contains standard GSM voice and data
applications. According to GSM standard, some specific ZTE commands are added for users’ convenience.
This manual might help you to understand how to use AT commands of these modules.
Target Readers
System Designing Engineers
Hardware Engineers
Software Engineers
Testing Engineers
Brief Introduction
Chapters
Contents
1 General Description
Briefly introduces the types and basic formats of ME3000, ME3006, ME3030
and ME3036 modules.
2 AT Command
Explains AT command operations of ME3000 modules in details.
Update History
The update history includes the update descriptions each time. The update contents will be included in
the latest version.
Document Version: V1.2 (June-4-2007)
Change the manual name from 《AT Command Manual for ZTE Corporation’s GSM/GPRS Modules》to《AT
Command Manual for ZTE Corporation’s ME3000 Modules》.
Add the applicable modules such as ME3000, ME3006, ME3030 and ME3036 modules.
Document Version: V1.1 （April-17-2007）
This is the second time to release formally. The update contents include:
2. AT Command
Newly added commands:
ATO: Switch from command mode to data mode
+++: Switch from data mode to command mode
CLIP: Set caller ID presentation
CCFC: Set call forwarding number and conditions
CLCK: Lock device or network
CPWD: Modify password
ME3000 Module
CNMA: SMS confirmation
CSCA: Set short message center number
CPBS: Select contacts memorizer
CPBR: Read contacts
CPBW: Write contacts
CPBF: Search for contacts
IFC: Set flow control
&D: Set DTR mode
&C: Set DCD mode
CGACT: Deactivate/activate PDP mode
CGATT: Set GPRS startup
CGCLASS: Device class
ZIPSETUPU: Bundle UDP port
ZIPSENDU: Send UDP data
ZIPSTATUSU: Query UDP status
ZIPCLOSEU: Close UDP port
ZIPRECVU: Receive UDP data
Document Version: V1.0 （March-05-2007）
This is the first time to release formally.
ME3000 Module
Table of Contents
General Description.......................................................................................................8
1.1 AT Commands ........................................................................................................................................... 8
1.1.1
Type of AT Commands .............................................................................................................. 8
1.1.2
Returned Type and Format of AT Commands............................................................................ 8
1.2 GSM Glossary ........................................................................................................................................... 9
AT Command............................................................................................................... 11
2.1 Common Command................................................................................................................................. 11
2.1.1
A/: repeat previous command .................................................................................................. 11
2.1.2
ATA: answer a call ................................................................................................................... 11
2.1.3
ATD: dial a number.................................................................................................................. 11
2.1.4
ATDL: dial the last outgoing number ...................................................................................... 12
2.1.5
ATE: enable echo ..................................................................................................................... 12
2.1.6
ATH: hang up the call .............................................................................................................. 12
2.1.7
ATQ: set if returned value displayed on the terminal .............................................................. 12
2.1.8
+++: switch from data mode to command mode ..................................................................... 13
2.1.9
ATO: switch from command mode to data mode .................................................................... 13
2.1.10
ATP: perform pulse dialing...................................................................................................... 13
2.1.11
ATS0: set auto answer.............................................................................................................. 14
2.1.12
+CRC: set incoming call type.................................................................................................. 14
2.1.13
+CLVL: set call volume........................................................................................................... 14
2.1.14
+CLIP: set caller ID presentation ............................................................................................ 15
2.1.15
+ZSETMUTE: mute control.................................................................................................... 15
2.1.16
+CIMI: inquire International ID .............................................................................................. 15
2.1.17
+CGMR: obtain product version ............................................................................................. 16
2.1.18
+ECHO: remove echo.............................................................................................................. 16
2.1.19
+(C) GSN: obtain current IMEI............................................................................................... 16
2.1.20
+ZVERS: obtain current software version............................................................................... 16
2.1.21
+CLCK: function lock ............................................................................................................. 17
2.1.22
+CCFC: set call forwarding number and conditions ............................................................... 17
2.1.23
*TSIMINS: inquire SIM card status ........................................................................................ 18
2.2 DTMF Command..................................................................................................................................... 19
2.2.1
+VTD: set DTMF duration ...................................................................................................... 19
2.2.2
+VTS: send DTMF .................................................................................................................. 19
2.3 Network Service Command..................................................................................................................... 19
2.3.1
+CREG: network registration and roam .................................................................................. 20
2.4 Mobile Device Control and Status Report ............................................................................................... 20
2.4.1
+CPAS: module status query ................................................................................................... 20
2.4.2
+CFUN: set module function................................................................................................... 21
2.4.3
+ZPWROFF: turn off module.................................................................................................. 21
2.4.4
+CPIN: input PIN code............................................................................................................ 21
2.4.5
+CSQ: signal strength query.................................................................................................... 22
2.4.6
+CCLK: clock management .................................................................................................... 22
2.5 SMS Command........................................................................................................................................ 22
ME3000 Module
2.5.1
+CSCA: set SMS center number ............................................................................................. 22
2.5.2
+CNMA: confirm SMS ........................................................................................................... 23
2.5.3
+CMGF: set SMS mode .......................................................................................................... 23
2.5.4
+CNMI: set SMS indicator format .......................................................................................... 23
2.5.5
+CMGR: view SMS ................................................................................................................ 25
2.5.6
+CSMS: select SMS service .................................................................................................... 27
2.5.7
+CMGS: message origination.................................................................................................. 28
2.5.8
+CPMS: prioritize message memorizer ................................................................................... 28
2.5.9
+CMGD: delete a message ...................................................................................................... 29
2.5.10
+CMGL: message list .............................................................................................................. 29
2.5.11
+CMSS: send messages stored in SIM card ............................................................................ 31
2.6 Phonebook Command.............................................................................................................................. 31
2.6.1
+CPBS: select phonebook ....................................................................................................... 31
2.6.2
+CPBR: read phonebook ......................................................................................................... 32
2.6.3
+CPBW: write phonebook....................................................................................................... 32
2.6.4
+CPBF: find phonebook .......................................................................................................... 33
2.7 Data Compression Command .................................................................................................................. 34
2.7.1
+IFC: flow control ................................................................................................................... 34
2.7.2
&D: set DTR mode .................................................................................................................. 34
2.7.3
&C: set DCD mode.................................................................................................................. 35
2.7.4
+IPR: set the module’s baud rate ............................................................................................. 35
2.7.5
&F: factory default................................................................................................................... 35
2.7.6
&W: save setting...................................................................................................................... 35
2.8 ZTE Exclusive Command........................................................................................................................ 35
2.8.1
+ZGPIO: read/write GPIO....................................................................................................... 36
2.8.2
+SPEAKER: switch audio channel.......................................................................................... 36
2.8.3
+ZDSLEEP: 32KHz deep sleep mode..................................................................................... 36
2.8.4
+ZSTR: query module’s status ................................................................................................ 37
2.9 GPRS Command...................................................................................................................................... 37
2.9.1
+CGDCONT: set PDP format.................................................................................................. 37
2.9.2
+ CGACT: deactivate/activate PDP setting ............................................................................. 37
2.9.3
+CGATT: set GPRS ................................................................................................................. 38
2.9.4
+CGCLASS: query GPRS class .............................................................................................. 38
2.10 TCP/IP Command.................................................................................................................................... 38
2.10.1 +ZPNUM: set APN, username, password................................................................................ 39
2.10.2 +ZPPPOPEN: open GPRS data link ........................................................................................ 39
2.10.3 +ZPPPCLOSE: close GPRS data link ..................................................................................... 39
2.10.4 +ZIPSETUP: establish TCP server connection........................................................................ 39
2.10.5 +ZIPSEND: send TCP data to target address........................................................................... 40
2.10.6 +ZPPPSTATUS: query GPRS connecting status ..................................................................... 40
2.10.7 +ZIPCLOSE: close TCP link................................................................................................... 40
2.10.8 +ZIPGETIP: query current IP address of the module .............................................................. 41
2.10.9 +ZIPSTATUS: query current TCP link status .......................................................................... 41
2.10.10 +ZIPRECV: Prompt to Receive Data from Current Data Link................................................ 41
ME3000 Module
2.10.11
2.10.12
2.10.13
2.10.14
2.10.15
+ZIPSETUPU: establish UDP server link ............................................................................... 41
+ZIPSENDU: send data to UDP server ................................................................................... 42
+ZIPSTATUSU: query UDP status.......................................................................................... 42
+ZIPCLOSEU: close UDP link ............................................................................................... 42
+ZIPRECVU: prompt to receive UDP data ............................................................................. 42
ME3000 Module
1.1
General Description
AT Commands
ME3006, ME3030 and ME3036 modules provide AT command interfaces, through which the modules could
communicate with external devices. AT command set provided by ME3006, ME3030 and ME3036 modules not
only covers standard GSM voice and short message applications, but adds some commands according to GSM
specification and some ZTE exclusive commands for users.
1.1.1 Type of AT Commands
Since AT command is used as a standard interface, the returned values and formats of the command are both fixed.
As a whole, AT command could be divided into four types:
z Non-parameter command: a type of simple command with the format of AT[+|&],e.g.: AT+CSQ,
AT&W
z Query command: used to inquire the current setting value. The format is AT[+|&]?, e.g.:
AT+CNMI?
z Help command: used to list the possible parameters of the command. The format is AT[+|&]=?,
e.g.: AT+CMGL=?
z Parameter command: normally used format which provides strong flexibility. The format is
AT[+|&]=,,…
The returned values of this type of command are all the same. This will be clarified in details later. The basic
frame format of the returned value is:

[ERROR INFO]
1.1.2 Returned Type and Format of AT Commands
The following are ME3006, ME3030 and ME3036 modules’ AT command and their format and returned
descriptions:
z AT command format:
--AT command starts with “AT” and ends with ;
--After the module runs, the serial port default setting will be: 8-digit data bit, 1-digit stop bit, no parity check,
no CTS/RTS, data rate 115200bps.
z AT command returned format:
--
--An exceptional case: e.g.: AT+ZPOWEROFF (response format) directly return with “OK”
z AT command status report (OK, ERROR):
--If there is error in AT command format, “Error” will return;
--If AT command executes successfully, “OK” will return.
ME3000 Module
1.2
GSM Glossary
Abbreviations
ADC
Definitions
AFC
Automatic Frequency Control
AGC
Automatic Gain Control
ARFCN
Absolute Radio Frequency Channel Number
ARP
Antenna Reference Point
ASIC
Application Specific Integrated Circuit
BER
Bit Error Rate
BTS
Base Transceiver Station
CDMA
Code Division Multiple Access
CDG
CDMA Development Group
CS
Coding Scheme
CSD
Circuit Switched Data
CPU
Central Processing Unit
DAI
Digital Audio interface
DAC
Digital-to-Analog Converter
DCE
Data Communication Equipment
DSP
Digital Signal Processor
DTE
Data Terminal Equipment
DTMF
Dual Tone Multi-Frequency
DTR
Data Terminal Ready
EFR
Enhanced Full Rate
EGSM
Enhanced GSM
EMC
Electromagnetic Compatibility
EMI
Electro Magnetic Interference
ESD
Electronic Static Discharge
ETS
European Telecommunication Standard
FDMA
Frequency Division Multiple Access
FR
Full Rate
GPRS
General Packet Radio Service
GSM
Global Standard for Mobile Communications
HR
Half Rate
IC
Integrated Circuit
IMEI
International Mobile Equipment Identity
ISO
International Standards Organization
ITU
International Telecommunications Union
LCD
Liquid Crystal Display
LED
Light Emitting Diode
MCU
Machine Control Unit
MMI
Man Machine Interface
Analog-Digital Converter
ME3000 Module
Abbreviations
Definitions
MS
Mobile Station
PCB
Printed Circuit Board
PCL
Power Control Level
PCS
Personal Communication System
PDU
Protocol Data Unit
PLL
Phase Locked Loop
PPP
Point-to-point protocol
RAM
Random Access Memory
RF
Radio Frequency
ROM
Read-only Memory
RMS
Root Mean Square
RTC
Real Time Clock
SIM
Subscriber Identification Module
SMS
Short Message Service
SRAM
Static Random Access Memory
TA
Terminal adapter
TDMA
Time Division Multiple Access
TE
Terminal Equipment also referred it as DTE
UART
Universal asynchronous receiver-transmitter
UIM
User Identifier Management
USB
Universal Serial Bus
VSWR
Voltage Standing Wave Ratio
ZTE
ZTE Corporation
10
ME3000 Module
2.1
AT Command
Common Command
2.1.1 A/: repeat previous command
Description
This command is used to repeat the previous command.
Format
A/
Example
AT+CSQ
Inquire current signal strength
A/
Repeat AT+CSQ command
2.1.2 ATA: answer a call
Description
This command is used to answer a call.
Format
ATA
Example
RING
Incoming call
ATA
Answer a call
2.1.3 ATD: dial a number
Description
This command is used to dial a number, transmit data or send a fax.
Format
ATD;
ATD>;
ATD>;
Example
AT+CPBS=“SM”
ATD13024540756;
Select SIM card phonebook as the current contacts
Search for this number in SIM card phonebook and dial it
AT+CPBS=“SM”
ATD>2;
OK
Select SIM card phonebook as the current contacts
Dial the second number in the current phonebook
ATD>SM1;
Dial the first number in SIM card phonebook
Description
: contacts
“SM”: SIM card phonebook;
“LD”: last dialled number in the contacts;
“MC”: missed call contacts;
“ME”: local contacts;
: the n-th option of the contacts.
: called number, e.g. *99#.
11
ME3000 Module
2.1.4 ATDL: dial the last outgoing number
Description
This command is used to dial the last outgoing number.
Format
ATDL
Example
ATD34394036;
OK
Call 34394036
ATH
OK
Hang up the call
ATDL
Dial 34394036 again
2.1.5 ATE: enable echo
Description
This command is used to enable echo.
Format
ATE
Example
ATE0
OK
ATE0, don’t display input command on the terminal
OK
ATE1
OK
ATE1
OK
Parameters
=0 Disable.
=1 Enabled.
2.1.6 ATH: hang up the call
Description
This command is used to hang up the call.
Format
ATH
Example
ATA
OK
Answer the call
ATH
Hang up the call
2.1.7 ATQ: set if returned value displayed on the terminal
Description
This command is used to set if the returned value is displayed on the terminal.
Format
ATQ
12
ME3000 Module
Example
ATQ0
OK
ATQ0
OK
Display the returned value on the terminal
ATQ1
OK
ATQ1ATQ1
Do not display the returned value on the terminal
2.1.8 +++: switch from data mode to command mode
Description
This command is used to switch from data mode to command mode.
Format
+++
Example
ATD*99#
CONNECT
+++
……
AT
OK
Dial and enter data mode
switch from data mode to command mode
2.1.9 ATO: switch from command mode to data mode
Description
This command is used to switch from command mode to data mode.
Format
ATO
Example
ATD*99#
CONNECT
+++
……
ATO
……
Dial and establish GPRS data connection
Switch from data mode to command mode
Switch from command mode to data mode
2.1.10 ATP: perform pulse dialing
Description
This command is used to perform pulse dialing.
Format
ATP
Example
ATP
OK
Set pulse dialing method
13
ME3000 Module
2.1.11 ATS0: set auto answer
Description
This command is used to control auto answer mode of the module.
Format
ATS0=
Example
ATS0=2
OK
Auto answer after ringing twice
ATS0?
OK
Query the current setting
ATS0=0
OK
Cancel anto answer
Parameters
:times for ringing.
2.1.12 +CRC: set incoming call type
Description
This command is used to set the incoming call type.
Format
AT+CRC=num
Example
AT+CRC=1
OK
+CRING: VOICE
Parameters
RING prompts the incoming call type
Set CRC as the prompt of incoming call
num:
0: don’t display incoming call type;
1: display incoming call type
Incoming call type:
-VOICE;
-GPRS;
-FAX.
2.1.13 +CLVL: set call volume
Description
This command is used to set the volume of the speaker.
Format
AT+CLVL=
Example
AT+CLVL=100
OK
Set the current volume as 100 for the receiver
AT+CLVL?
+CLVL:100
Query the current volume
Parameters
 between 0 and 100 .
14
ME3000 Module
2.1.14 +CLIP: set caller ID presentation
Description
This command is used to set caller ID presentation. The default setting is “Turn off caller ID
presentation”.
Format
AT+CLIP=
+CLIP:  retuned value of AT+CLIP? Command
+CLIP: ,,<> caller ID presentation format
Example
AT+CLIP=1
OK
RING:+CLIP:
“130********”,129, “”,“”,0
Turn on caller ID presentation.
There is an incoming call, and the number is 130********
AT+CLIP=0
OK
RING
Parameters
Turn off caller ID presentation.
No alert upon an incoming call
:
0: Turn off caller ID presentation;
1: Turn on caller ID presentation.
: Incoming call number (need apply for relevant service).
: 129.
2.1.15 +ZSETMUTE: mute control
Description
This command is used for mute control, and it can be used only during the calling.
Format
AT+ZSETMUTE=
Example
AT+ZSETMUTE=?
+ZSETMUT:(0-1)
OK
Query the settable parameters
AT+ZSETMUTE=1
OK
Turn on mute
AT+ZSETMUTE=0
OK
Turn off mute
Parameters

0: Turn on mute;
1: Turn off mute.
2.1.16 +CIMI: inquire International ID
Description
This command is used to read SIM card’s international ID and query the PIN code you need
input.
15
ME3000 Module
Format
AT+CIMI
Example
AT+CIMI
460030916875923
OK
Inquire CIMI
Return with CIMI
2.1.17 +CGMR: obtain product version
Description
This command is used to obtain the product version.
Format
AT+CGMR
Example
AT+CGMR=?
OK
No meaning
AT+CGMR

Return with the current module version
2.1.18 +ECHO: remove echo
Description
This command is used to remove echo.
Format
AT+ECHO=num
Example
AT+ECHO?
+ECHO:1
OK
Inquire the current echo setting
AT+ECHO=0
OK
Cancel remove echo
Parameters
Num: default value,1.
1:set remove echo;
0:cancel remove echo.
2.1.19 +(C) GSN: obtain current IMEI
Description
This command is used to obtain the current IMEI of the device.
Format
AT+GSN
Example
AT+GSN
Return with the current IEMI
2.1.20 +ZVERS: obtain current software version
Description
This command is used to obtain current software version
Format
AT+ZVERS
16
ME3000 Module
Example
AT+ZVERS
+ZVERS: ***.bin
OK
Obtain the current software version
2.1.21 +CLCK: function lock
Description
This command is used to lock the terminal or the network..
Format
AT+CLCK=,[,[,]]
+CLCK:
Example
AT+CLCK=?
+CLCK：（“SC”，“AO”，
“OI”，“OX”，“AI”，“IR”，
“AB”，“AG”，“AC”，“FD”，
“BN”，“PN”，“PU”，“PP”，
“PC”）
OK
Parameters
: “SC”: SIM card, “AO”: All originated calls, “OI”: Originate International Calls, “OX”:
All international calls except local area; “AI”: All Incoming Calls, “IR”: Roam all incoming
calls except local area; “AB”: All call services, “AG”: all outgoing call services, “AC”: all
incoming call services, “FD”: SIM card fixed dial space, “PN”: network certification;
“PU”network unit certification;“PP”: provider certification; “PC”corporate certification.
:
0: unlock;
1: lock;
2: query status.
:password, character string “***”
:
1: voice service;
2: data service;
4: fax service;
7: all service.
:
0: Disable;
1: Enable.
2.1.22 +CCFC: set call forwarding number and conditions
Description
This command is used to set call forwarding number and conditions.
17
ME3000 Module
Format
AT+CCFC=,[,
[,[,[,[,[,time]]]]]]
If mode!=2,return after setting is successful: OK;
If mode=2, return after setting is successful:
+CCFC:,
Example
AT+CCFC=?
+CCFC: (0,1,2,3,4,5)
OK
Parameters
Query call forwarding setting range
Return with reason

0: unconditional;
1: mobile device busy;
2: no reply;
3: unreachable ;
4: all calls;
5: All.

0: disable;
1: enable;
2: query;
3: register;
4: delete.
number: phone number.

145: international number;
129: other number.
: string address.
:128.

1: voice;
2: data;
4: fax;
7: all.
Time:1..20..30 (muliply 5)
:
0: Disable;
1: Enable.
2.1.23 *TSIMINS: inquire SIM card status
Description
This command is used to inquire SIM card status.
Format
AT*TSIMINS=num,status
18
ME3000 Module
Example
Parameters
2.2
AT*TSIMINS?
*TSIMINS:0,0
OK
Inquire SIM card status
No SIM card
num:0 or 1 has no meaning.
status:
0:no SIM card;
1:SIM card.
DTMF Command
2.2.1 +VTD: set DTMF duration
Description
AT+VTD set DTMF duration.
Format
AT+VTD=
Example
AT+VTD=?
+VTD:(1-255)
OK
Query the range for DTMF duration
AT+VTD?
OK
Return with “OK”
AT+VTD=200
OK
Set DTMF duration as 20s
Parameters

0:default setting.
1-255 length, unit: 100ms.
2.2.2 +VTS: send DTMF
Description
This command is used to send DTMF.
Format
AT+VTS=
Example
AT+VTS=?
+VTS:(0-9,*#,A,B,C,D),,(1-255)
OK
Query +VTS parameter
ATD********;
AT+VTS=“3,6,9”
Dial the call
Send DTMF 369
Parameters
2.3
String, use comma to separate the symbols.
Symbols 0-9,*,#,A-D.
Network Service Command
19
ME3000 Module
2.3.1 +CREG: network registration and roam
Description
This command is used to query the module’s registration and roaming status.
Note: need AT&W command to save the results as you set 0 or 1.
Format
AT+CREG=
+CREG :, return code
Example
AT+CREG=0
OK
Forbid network registration to provide result code
AT+CREG?
+CREG: 0,1
Display module registration status
AT+CREG=?
+CREG: (0-2)
OK
Quert status range
Parameters
2.4

0: Forbid network registration to provide result code(default setting);
1:allow network registration to provide result code:+CREG:;
2:allow network registration to provide local information.

0:Unregistered, terminal isn’t searching for new operator;
1:Registered to local network;
2:Unregistered, terminal is searching for BS;
4:Unknow code;
5:Registered, roaming.
Mobile Device Control and Status Report
2.4.1
+CPAS: module status query
Description
This command is used to query the module’s work status.
Format
AT+CPAS
Example
AT+CPAS
+CPAS:2
OK
Parameters
:
0:get ready to receive AT command;
2:unknow status (default);
3:Incoming call (ring);
4:In calling.
Query the module’s current work status
20
ME3000 Module
2.4.2 +CFUN: set module function
Description
This command is used to set module function.
Format
AT+CFUN=,
Example
AT+CFUN=?
+CFUN(0,1,4),(0-1)
OK
Query setting range
AT+CFUN=1,0
Setting valid immediately
AT+CFUN=1,1
Reset valid
Parameters
:
0: minor function;
1: Full function;
4: Turn off RF Rx/Tx circuit.
 :
0: the function activated immediately after setting;
1: the function activated after reset.
2.4.3 +ZPWROFF: turn off module
Description
This command is used to turn off the module.
Format
AT+ZPWROFF
Example
AT+ZPWROFF
OK
Turn off the module
2.4.4 +CPIN: input PIN code
Description
This command is used to query PIN code status and input PIN code. The functions can be used
only after the correct PIN code is entered.
Format
AT+CPIN=
Example
AT+CPIN?
+CPIN:READY
Query current PIN code
No need to input new PIN code
OK
AT+CPIN?
+CPIN:SIM PIN
AT+CPIN="****"
OK
Query current PIN code status
PIN code must be correct
Enter the correct PIN code
21
ME3000 Module
Parameters
AT+CPIN?: check if what kind of passwords should be entered.
+CPIN:READY::don’t need enter any password.
+CPIN:SIM PIN: need enter PIN code.
Pin: string value.
2.4.5 +CSQ: signal strength query
Description
This command is used to inquire receive signal strength indicator(rssi) and bit error rate (ber)
Format
AT+CSQ
Example
AT+CSQ
+CSQ:,
Parameters
:
0–113dbm;
1-111dbm;
2..30–109..-53dbm;
31-51dbm;
99: network unavailable.
:
0~7: normal;
99: network unavailable.
2.4.6 +CCLK: clock management
Description
This command is used to set and query the data/time of real-time clock.
Format
AT+CCLK=
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