Atv81 Atv84

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AT commands interface

This
document
is
the
property
of
WAVECOM,
and
is
transferred
to
______________________________ under the conditions of the active Non-Disclosure
Agreement dated __________. Use of this document is subject to the terms of this NDA. This
document will be returned to WAVECOM under request.

Version : 8.4
Date : Oct,1999
Reference : WCOM/GSM/SW/SII015

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

DOCUMENT AMENDMENTS
COMMENTS
1.0
2.0
3.0
4.0
5.0
5.1
5.2
5.3
6.0
6.1
7.0
7.1
7.2
7.3

29-02-1996
18-03-1996
10-06-1996
08-07-1996
29-07-1996
25-09-1996
03-10-1996
21-10-1996
16-01-1997
10-02-1997
29-05-1997
24-07-1997
16-10-1997
21-12-1997

P
P
P
P
P
P
P
P
P
P
P
P
P
P

7.4

10-02-1998 P

7.5
7.6

31-03-1998 P
30-04-1998 P

7.7

30-06-1998 P

7.8

29-10-1998 P

7.9

10-02-1999 P

N. Higelin
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
R. Madec
F. Desnoues
F. Desnoues

Creation
Add of new commands
Add of new commands
Add of new commands
Add of new commands
Modification of commands
Add of new commands
Add of V25 ter commands
Add of new commands
Modifications of +CBST, +CRLP, +SIDET
Add of new commands
Modifications for error codes
Network & SIM lock (+CLCK, +CPWD)
SIM Phonebook management
(+CPBS, +CPBR, +CPBF, +CPBW)
FAX management document
F. Desnoues Advice Of Charge management (+CAOC,
+CACM, +CAMM, +CPUC)
F. Desnoues ATV and ATQ commands
F. Desnoues Cell Broadcast Msg management (+CSCB,
+WCBM) and Incoming bearer (+CICB)
O.Capron
New commands +CPINC,+CCID,+CNUM,
+WAIP , +CPBP, +CPBN (phonebook)
O.Capron
SMS commands (+CMGW, +CMSS)
F.Desnoues New formats of Suppl Serv commands
(+CLCK,+CCWA,+CCFC)
Add
comments
pertaining
to
R.Dorey
+IPR,+CBST,+ICF and fax setup.
O.Capron
New +CPIN2, +CIMI, +WIND, +CPOL,
F.Desnoues +WOPN (Operator Name), +WLPR,
+WLPW, +WIOR, +WIOW (GPIO), AT&T
Extension: +CCED (RxLev auto), +CPBS
(Own Nb), +CLCK (FDN), ATD (Temporary
CLIR)

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AT commands interface

8.0

15-04-1999 P

F.Desnoues

New: +CHLD, +CLCC, +CSSN, +CUSD,
+WMGO, +WMSC
Extension: ATD, ATH, ATA, +CCWA,
+CLIP, +COLP, +WIND, +COPS
Modification: +VGR levels

8.1

04-05-1999 P
16-06-1999 P

C.Amiens
C.Foratier

New format of +ECHO?.command.
New: +CCUG, AT&V, ATI, +DOPT
Extension: ATD (Temporary CUG)
Modification:+CRLP, +ILRR, +FCLASS,
add fax class 1 commands,

8.3

21-06-1999 P
27-09-1999 P

C. Amiens
C.Foratier

New: %D, +VIP, +WAC.
New: +WTONE,+WDTMF,+CKPD
Extension: "EN" phonebook
Extension: ATD (GSM sequences)

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AT commands interface

CONTENTS
1. INTRODUCTION ..................................................................................................................... 1
1.1.
1.2.
1.3.
1.4.

SCOPE OF THIS DOCUMENT .................................................................................................. 1
RELATED DOCUMENTS ......................................................................................................... 1
ETSI SECRETARIAT.............................................................................................................. 2
DEFINITIONS......................................................................................................................... 2

2. AT COMMANDS FEATURES ................................................................................................. 3
2.1.
2.2.
2.3.

WAVECOM LINE SETTINGS ................................................................................................... 3
COMMAND LINE.................................................................................................................... 3
INFORMATION RESPONSES AND RESULT CODES .................................................................. 3

3. GENERAL BEHAVIORS ......................................................................................................... 4
3.1.
3.2.

SIM INSERTION, SIM REMOVAL ......................................................................................... 4
BACKGROUNG INITIALISATION............................................................................................ 5

4. GENERAL COMMANDS ......................................................................................................... 6
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
4.10.
4.11.
4.12.
4.13.
4.14.

MANUFACTURER IDENTIFICATION +CGMI......................................................................... 6
REQUEST MODEL IDENTIFICATION +CGMM ...................................................................... 6
REQUEST REVISION IDENTIFICATION +CGMR ................................................................... 6
PRODUCT SERIAL NUMBER +CGSN .................................................................................... 7
SELECT TE CHARACTER SET +CSCS................................................................................... 7
REQUEST IMSI +CIMI ........................................................................................................ 7
CARD IDENTIFICATION +CCID........................................................................................... 8
CAPABILITIES LIST +GCAP ................................................................................................. 8
REPEAT LAST COMMAND A/................................................................................................. 8
POWER OFF +CPOF ........................................................................................................... 9
SET PHONE FUNCTIONALITY +CFUN................................................................................. 9
PHONE ACTIVITY STATUS +CPAS .................................................................................... 10
REPORT MOBILE EQUIPEMENT ERRORS +CMEE........................................................... 10
KEYPAD CONTROL +CKPD.............................................................................................. 11

5. CALL CONTROL COMMANDS ........................................................................................... 12
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.

DIAL COMMAND D.............................................................................................................. 12
HANG-UP COMMAND H...................................................................................................... 15
ANSWER A CALL A.............................................................................................................. 15
REMOTE DISCONNECTION .................................................................................................. 16
EXTENDED ERROR REPORT +CEER .................................................................................. 16
DTMF SIGNALS +VTD, +VTS ........................................................................................... 16

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iii

AT commands interface

5.7.
5.8.
5.9.
5.10.
5.11.
5.12.
5.13.
5.14.
5.15.
5.16.

REDIAL LAST NUMBER ATDL ............................................................................................ 17
AUTOMATIC DIALING WITH DTR AT%DN ...................................................................... 17
AUTOMATIC ANSWER ATS0............................................................................................... 19
INCOMING CALL BEARER +CICB ................................................................................... 20
GAIN CONTROL +VGR, +VGT......................................................................................... 21
MICROPHONE MUTE CONTROL +CMUT........................................................................ 22
SPEAKER & MICROPHONE SELECTION +SPEAKER....................................................... 23
ECHO CANCELATION +ECHO ......................................................................................... 23
SIDETONE MODIFICATION +SIDET................................................................................. 25
INITIALISE VOICE PARAMETERS +VIP ............................................................................ 26

6. NETWORK SERVICE COMMANDS ................................................................................... 27
6.1.
6.2.
6.3.
6.4.
6.5.

SIGNAL QUALITY +CSQ..................................................................................................... 27
OPERATOR SELECTION +COPS ......................................................................................... 28
NETWORK REGISTRATION +CREG ................................................................................... 31
READ OPERATOR NAME +WOPN....................................................................................... 32
PREFERRED OPERATOR LIST +CPOL ................................................................................ 32

7. SECURITY COMMANDS ...................................................................................................... 35
7.1.
7.2.
7.3.
7.4.
7.5.

ENTER PIN +CPIN ............................................................................................................ 35
ENTER PIN2 +CPIN2 ......................................................................................................... 37
PIN REMAINING ATTEMPT NUMBER +CPINC .................................................................. 39
FACILITY LOCK +CLCK .................................................................................................... 39
CHANGE PASSWORD +CPWD ............................................................................................ 41

8. PHONEBOOK COMMANDS ................................................................................................. 43
8.1.
8.2.
8.3.
8.4.
8.5.
8.6.
8.7.
8.8.

SELECT PHONEBOOK MEMORY STORAGE +CPBS ............................................................ 43
READ PHONEBOOK ENTRIES +CPBR ................................................................................. 43
FIND PHONEBOOK ENTRIES +CPBF................................................................................... 44
WRITE PHONEBOOK ENTRY +CPBW ................................................................................ 44
PHONEBOOK PHONE SEARCH +CPBP................................................................................ 47
MOVE ACTION IN PHONEBOOK +CPBN............................................................................. 47
SUBSCRIBER NUMBER +CNUM.......................................................................................... 49
AVOID PHONEBOOK INIT +WAIP ...................................................................................... 50

9. SHORT MESSAGES COMMANDS ...................................................................................... 51
9.1.
9.2.
9.3.
9.4.
9.5.
9.6.

PARAMETERS DEFINITION .................................................................................................. 51
SELECT MESSAGE SERVICE +CSMS................................................................................... 52
PREFERRED MESSAGE STORAGE +CPMS ......................................................................... 53
PREFERRED MESSAGE FORMAT +CMGF .......................................................................... 54
SAVE SETTINGS +CSAS ..................................................................................................... 55
RESTORE SETTINGS +CRES............................................................................................... 55

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AT commands interface

9.7.
9.8.
9.9.
9.10.
9.11.
9.12.
9.13.
9.14.
9.15.
9.16.
9.17.
9.18.
9.19.
9.20.

SHOW TEXT MODE PARAMETERS +CSDH ......................................................................... 56
NEW MESSAGE INDICATION +CNMI.................................................................................. 56
READ MESSAGE +CMGR ................................................................................................... 58
LIST MESSAGE +CMGL ................................................................................................... 59
SEND MESSAGE +CMGS................................................................................................... 61
WRITE MESSAGE TO MEMORY +CMGW........................................................................ 62
SEND MESSAGE FROM STORAGE +CMSS........................................................................ 63
SET TEXT MODE PARAMETERS +CSMP .......................................................................... 64
DELETE MESSAGE +CMGD.............................................................................................. 66
SERVICE CENTER ADDRESS +CSCA ................................................................................. 66
SELECT CELL BROADCAST MESSAGE TYPES +CSCB ..................................................... 67
CELL BROADCAST MESSAGE IDENTIFIERS +WCBM ...................................................... 67
MESSAGE STATUS MODIFICATION +WMSC .................................................................... 68
MESSAGE OVERWRITING +WMGO ................................................................................ 68

10. SUPPLEMENTARY SERVICES COMMANDS ................................................................. 70
10.1.
10.2.
10.3.
10.4.
10.5.
10.6.
10.7.
10.8.
10.9.
10.10.
10.11.
10.12.
10.13.
10.14.
10.15.
10.16.

CALL FORWARDING +CCFC ............................................................................................ 70
CALL BARRING +CLCK ................................................................................................... 72
MODIFY SS PASSWORD +CPWD...................................................................................... 73
CALL WAITING +CCWA .................................................................................................. 73
CALLING LINE IDENTIFICATION RESTRICTION +CLIR ................................................... 75
CALLING LINE IDENTIFICATION PRESENTATION +CLIP ................................................. 76
CONNECTED LINE IDENTIFICATION PRESENTATION +COLP ......................................... 77
ADVICE OF CHARGE +CAOC ........................................................................................... 78
ACCUMULATED CALL METER +CACM ............................................................................ 79
ACCUMULATED CALL METER MAXIMUM +CAMM........................................................ 80
PRICE PER UNIT AND CURRENCY TABLE +CPUC ........................................................... 81
CALL RELATED SUPPLEMENTARY SERVICES +CHLD.................................................... 81
LIST CURRENT CALLS +CLCC........................................................................................ 82
SUPPLEMENTARY SERVICE NOTIFICATIONS +CSSN...................................................... 83
UNSTRUCTURED SUPPLEMENTARY SERVICE DATA +CUSD ........................................... 85
CLOSED USER GROUP +CCUG ....................................................................................... 86

11. DATA COMMANDS ............................................................................................................. 88
11.1.
11.2.
11.3.
11.4.
11.5.
11.6.
11.7.

BEARER TYPE SELECTION +CBST ................................................................................... 88
SELECT MODE +FCLASS ................................................................................................. 89
SERVICE REPORTING CONTROL +CR............................................................................... 90
CELLULAR RESULT CODES +CRC .................................................................................... 90
DTE-DCE LOCAL RATE REPORTING + ILRR................................................................... 91
RADIO LINK PROTOCOL PARAMETERS +CRLP ............................................................... 91
OTHERS RADIO LINK PARAMETERS +DOPT .................................................................... 92

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AT commands interface

12. FAX COMMANDS ................................................................................................................ 93
12.1.
12.2.
12.3.
12.4.
12.5.
12.6.
12.7.

TRANSMIT SPEED +FTM .................................................................................................. 93
RECEIVE SPEED +FRM..................................................................................................... 93
HDLC TRANSMIT SPEED +FTH ....................................................................................... 94
HDLC RECEIVE SPEED +FRH .......................................................................................... 94
STOP TRANSMISSION AND WAIT +FTS ............................................................................. 94
RECEIVE SILENCE +FRS................................................................................................... 95
SETTING UP THE PC FAX APPLICATION:.......................................................................... 95

13. V24-V25 COMMANDS.......................................................................................................... 96
13.1.
13.2.
13.3.
13.4.
13.5.
13.6.
13.7.
13.8.
13.9.
13.10.
13.11.
13.12.
13.13.
13.14.
13.15.
13.16.

FIXED DTE RATE +IPR .................................................................................................... 96
DTE-DCE CHARACTER FRAMING +ICF .......................................................................... 97
DTE-DCE LOCAL FLOW CONTROL +IFC ........................................................................ 98
SET DCD SIGNAL &C ....................................................................................................... 99
SET DTR SIGNAL &D ....................................................................................................... 99
SET DSR SIGNAL &S ...................................................................................................... 100
BACK TO ONLINE MODE O.............................................................................................. 100
RESULT CODE SUPPRESSION Q....................................................................................... 100
DCE RESPONSE FORMAT V ............................................................................................ 100
DEFAULT CONFIGURATION Z ....................................................................................... 101
SAVE CONFIGURATION &W.......................................................................................... 101
AUTO-TESTS &T ........................................................................................................... 101
ECHO E ......................................................................................................................... 102
RESTORE FACTORY SETTINGS &F................................................................................ 102
DISPLAY CONFIGURATION &V ..................................................................................... 102
REQUEST IDENTIFICATION INFORMATION I ................................................................ 103

14. SPECIFIC AT COMMANDS .............................................................................................. 105
14.1.
14.2.
14.3.
14.4.
14.5.
14.6.
14.7.
14.8.
14.9.
14.10.
14.11.
14.12.
14.13.
14.14.

CELL ENVIRONMENT DESCRIPTION +CCED................................................................. 105
AUTOMATIC RXLEV INDICATION +CCED..................................................................... 107
GENERAL INDICATIONS +WIND .................................................................................... 108
DATA CIPHERING MODE BETWEEN ME AND MSC +ALEA ......................................... 110
DATA CIPHERING MODE +CRYPT ................................................................................ 110
KEY MANAGEMENT +EXPKEY ..................................................................................... 111
INFORMATIONS ON PLMN +CPLMN ............................................................................ 111
ANALOG DIGITAL CONVERTERS MEASUREMENTS +ADC ............................................. 111
MOBILE EQUIPMENT EVENT REPORTING +CMER........................................................ 111
READ LANGUAGE PREFERENCE +WLPR..................................................................... 112
WRITE LANGUAGE PREFERENCE +WLPW.................................................................. 112
READ GPIO VALUE +WIOR......................................................................................... 113
WRITE GPIO VALUE +WIOW ..................................................................................... 113
ABORT COMMAND +WAC ............................................................................................ 113

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AT commands interface

14.15.
14.16.

PLAY TONE +WTONE .................................................................................................. 114
PLAY DTMF TONE +WDTMF...................................................................................... 116

15. OTHER AT COMMANDS .................................................................................................. 117
15.1.
15.2.
15.3.

V.25 TER RECOMMANDATION ........................................................................................ 117
GSM 07.05 RECOMMANDATION ..................................................................................... 117
GSM 07.07 RECOMMANDATION ..................................................................................... 117

16. APPENDICES ...................................................................................................................... 118
16.1.
16.2.
16.3.
16.4.
16.5.
16.6.
16.7.
16.8.
16.9.
16.10.
16.11.
16.11.1.
16.11.2.
16.11.3.
16.11.4.
16.11.5.
16.12.

ME ERROR RESULT CODE : +CME ERROR: ................................................ 118
MESSAGE SERVICE FAILURE RESULT CODE: +CMS ERROR : ............................ 119
SPECIFIC ERROR RESULT CODES .................................................................................... 119
FAILURE CAUSE FROM GSM 04.08 RECOMMANDATION (+CEER)............................... 120
SPECIFIC FAILURE CAUSE FOR +CEER......................................................................... 121
GSM 04.11 ANNEX E-2: MOBILE ORIGINATING SM-TRANSFER .................................. 121
UNSOLICITED RESULT CODES ......................................................................................... 124
FINAL RESULT CODES ..................................................................................................... 124
INTERMEDIATE RESULT CODES ...................................................................................... 125
PARAMETERS STORAGE ................................................................................................ 125
GSM SEQUENCES LIST .................................................................................................. 127
SECURITY ................................................................................................................. 127
CALL FORWARDING .................................................................................................. 127
CALL BARRING ......................................................................................................... 128
CALL WAITING .......................................................................................................... 129
NUMBER PRESENTATION........................................................................................... 129
OPERATOR NAMES ........................................................................................................ 130

17. ANNEX A (INFORMATIVE) ............................................................................................. 138
INFORMATIVE EXAMPLE ABOUT THE PIN REQUIRED ................................................................. 138
1.1.1.
EXAMPLE 1 : IN THE START THE ME IS POWERED OFF. ................................................. 138
1.1.2.
EXAMPLE 2: IN THE START THE ME HAS ALREADY BEEN POWERED ON......................... 139
INFORMATIVE EXAMPLE WHERE A VOICE CALL IS ORIGINATED. ............................................... 140
INFORMATIVE EXAMPLE ABOUT AN INCOMING CALL. ................................................................ 141
INFORMATIVE EXAMPLE ABOUT A CALL FORWARDING .............................................................. 142
INFORMATIVE EXAMPLE ABOUT A MULTIPARTY......................................................................... 143
INFORMATIVE EXAMPLE ABOUT PHONEBOOKS .......................................................................... 144
1.6.1.
EXAMPLE 1 : THE WHOLE PHONEBOOK OF THE ME IS READ ......................................... 144
1.6.2.
EXAMPLE 2 : ERASE OR WRITE A PHONEBOOK ENTRY .................................................. 145
1.6.3.
EXAMPLE 3 : FIND PHONEBOOK ENTRIES ...................................................................... 146
INFORMATIVE EXAMPLE ABOUT SHORT MESSAGES .................................................................... 147
1.6.4.
EXAMPLE 4 : SEND A SHORT MESSAGE ......................................................................... 147
1.6.5.
EXAMPLE 5: READ SHORT MESSAGES ........................................................................... 148

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vii

AT commands interface

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viii

AT commands interface

Introduction

1.1. Scope of this document
This document describes the messages exchanged between an external
application module and the WAVECOM GSM mobile station, based on AT
commands in order to control incoming and outgoing calls.
This document presents the AT-commands implemented for the voice
call teleservice, the data teleservice and the short message teleservice.

1.2. Related documents
This interface specification is based on the following recommandations :
[1] ETSI GSM 07.05 : Digital cellular telecommunications system
(Phase 2) ; Use of DTE-DCE interface for Short Message
Service (SMS) and Cell Broadcast Service (CBS)
[2] ETSI GSM 07.07 : Digital cellular telecommunications system
(phase 2) ; AT command set for GSM Mobile Equipment (ME)
[3] ITU-T Recommandation V.25 ter : Serial asynchronous
automatic dialling and control
[4] ETSI GSM 03.40 : Digital cellular telecommunications system
(phase 2) ; Technical realization of the Short Message Service
(SMS) Point-to-Point (PP)
[5] ETSI GSM 03.38 : Digital cellular telecommunications system
(phase 2) ; Alphabets and language-specific information
[6] ETSI GSM 04.80 : Digital cellular telecommunications system
(Phase 2): Mobile radio interface layer 3, Supplementary
services specification, Formats and coding

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AT commands interface

1.3. ETSI secretariat
The following addresses can be useful to get the latest GSM
recommendations.

Postal address :

F-06921 Sophia Antipolis CEDEX - FRANCE

Office address :

650 Route des Lucioles - Sophia Antipolis –
Valbonne - FRANCE

Internet : secretariat@etsi.fr
Tel :

+33 4 92 94 42 00

Fax :

+33 4 93 65 47 16

1.4. Definitions
In the GSM vocabulary, a call from GSM mobile to the PSTN is named
"mobile originated call" (MOC) or "outgoing call", and a call from fixed network
to a GSM mobile is called "mobile terminated call" (MTC) or "incoming call".

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AT commands interface

AT commands features

2.1. Wavecom line settings
Serial link handler is set to default values (factory settings) :
autobaud, 8 bits data, 1 bit stop, no parity, RTS/CTS flow control.
Please use the commands +IPR, +IFC, +ICF to change these settings.

2.2. Command line
Commands always start with AT (means ATtention !) and finish with a
character.

2.3. Information responses and result codes
Responses start and end with , except with the ATV0 (DCE
response format) and ATQ1 (result code suppression) commands.
• If the syntax of the command is wrong, the string ERROR is sent.
• If the syntax command is correct but with some incorrect parameters,
the string +CME ERROR : or +CMS ERROR : is sent with
different error codes.
• If the command line has been performed successfully, the string OK is
sent.
In some cases like "AT+CPIN?", "AT+EXPKEY?", or incoming events
(unsolicited) the module does not finish its response with the string OK.
In the following examples and will be intentionally
omitted.

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AT commands interface

General behaviors

3.1. SIM Insertion, SIM Removal
The SIM card Insertion and Removal procedures are supported. These
are software functions based on the reading of the hardware SIM presence
pin. This pin state (open / closed) is watched continuously.
When the SIM presence pin indicates a presence of a card in the SIM
connector, the module tries to establish a logical SIM session. Depending if
the somewhat is a SIM Card or not, the logical SIM session will be
established or not. The AT+CPIN? delivers the following answers :
-

If SIM presence pin indicates “Nothing”, the answer to AT+CPIN? is
“+CME ERROR 10” (SIM not inserted)

If SIM presence pin indicates “something”, and the inserted Card is a
SIM Card, the answer to AT+CPIN? is “+CPIN: xxx” depending of the
SIM PIN state.

If SIM presence pin indicates “something’, and the inserted Card is
not a SIM Card, the answer to AT+CPIN? is CME ERROR 10

These both last status are not immediately available due to
background initialisation. Between the hardware SIM presence pin
indication of “something” and the previous results the AT+CPIN?
sends “+CME ERROR: 515” (Please wait, init in progress)

When the SIM presence pin indicates an absence, if a SIM Card was
inserted before, an IMSI detach procedure is done, and all the user data are
removed from the module (Phonebooks, SMS etc.). The module is then in
emergency mode.

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AT commands interface

3.2. Backgroung initialisation
After PIN entry, some SIM user data files are loaded in the module
(Phonebooks, SMS status …), but it can take a long time for huge
phonebooks reading. The AT+CPIN? command answers just after verification
of the PIN. User Datas are loaded after the answer in background.
This mean, that some datas may not be available just after the OK from
PIN Entry. Reading of phonebooks will then be refused by the following
“+CME ERROR: 515” or “+CMS ERROR: 515” meaning “please wait, service
is not available, init in progress”.
That kind of answer may be sent by the module at several steps :
-

When trying to execute another AT command before the end
(response) of the previous one.

when swapping from (or to) ADN to (or from) FDN and trying to read
immediately the concerned phonebook ;

when asking for +CPIN? Status just after a SIM insertion when the
module has not determined that the inserted card is a valid SIM Card.

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AT commands interface

General commands

4.1. Manufacturer identification

+CGMI

This command gives the manufacturer identification.
Application to GSM

AT+CGMI

GSM to application

WAVECOM MODEM
OK

Get
manufacturer
identification
Command valid, Wavecom
modem

4.2. Request model identification

+CGMM

This command is used to get the supported bands (GSM 900, DCS 1800
or PCS 1900). The answer could be a combination of different bands in the
case of multiband modules.
Application to GSM
GSM to application

AT+CGMM
900P
OK

Get hardware version
GSM 900 MHz primary band, or
"900E " (extended band), "1800"
(DCS), "1900" (PCS) or "MULTIBAND"

4.3. Request revision identification +CGMR
This command is used to get the software version.
Application to GSM
GSM to application

AT+CGMR
310_G250.51 806216
032199 17:04
OK

get software version
Software release 3.10 ,révision
51 generated on the 21st of
March 1999

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AT commands interface

4.4. Product Serial Number

+CGSN

This command allows the user application to know the IMEI of the GSM
module. The application sends :
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CGSN
135790248939
OK
AT+CGSN
+CME ERROR: 22

Request IMEI
IMEI present in EEPROM
Request IMEI
IMEI not found in EEPROM

4.5. Select TE character set

+CSCS

This commands informs the ME which character set is used by the TE.
ME is then able to convert each character of entered or displayed string. This
is used to send, read or write short messages.
Application to GSM
GSM to application
Application to GSM

AT+CSCS="GSM"
OK
AT+CSCS="PCCP437"

GSM to application

GSM default alphabet
Command valid
PC character set Code Page
437
Command valid

4.6. Request IMSI +CIMI
This command is used to read the IMSI (International Mobile Subscriber
Identity) of the SIM card. The PIN should be entered if needed before reading
the IMSI.
Command syntax: AT+CIMI
Response syntax:
Application to GSM
GSM to application

AT+CIMI
208200120320598

Read the IMSI
IMSI value (15 digits), starting
with MCC (3 digits) / MNC (2
digits, 3 for PCS 1900)

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AT commands interface

See appendice 16.12 for MCC / MNC description.

4.7. Card Identification

+CCID

This command instructs the module to read the EF-CCID file on the SIM
card.
Command syntax :

AT+CCID

Response syntax :

+CCID :

In case of absent EF-CCID file on the SIM, the +CCID will not be sent.
But the OK will be present.
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CCID
+CCID : "123456789AB111213141"
OK
AT+CCID ?
+CCID : "123456789AB111213141"

get card id
EF-CCID is present, hexadecimal
format
get current value
Same result as +CCID

Application to GSM
GSM to application

AT+CCID= ?
OK

get possible value
no parameter but this command is
valid

4.8. Capabilities list +GCAP
This command gives the complete capabilities list.
Application to GSM
GSM to application

AT+GCAP
+GCAP: +CGSM +FCLASS
OK

4.9. Repeat last command

get capabilities list
supports GSM commands and FAX

Only A/ command can not be repeated. This command repeats the last
command executed.
Application to GSM

Repeat last command

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AT commands interface

4.10. Power off +CPOF
This specific command stops the GSM software stack and then the
hardware layer. The AT+CFUN=0 command is equivalent to +CPOF
Application to GSM
GSM to application

AT+CPOF
OK

stop GSM stack
Command valid

4.11. Set phone functionality

+CFUN

This command selects the level of functionality in the mobile station.
•When the application wants to stop the module for making a power off,
or if the application wants to force the module for executing a IMSI DETACH
procedure, then it has to send :
AT+CFUN=0 (same as AT+CPOF)
This command executes a IMSI DETACH and makes a backup of some
internal parameters in the SIM and the EEPROM. Then no access to the SIM
card is possible.
If the mobile is not powered off after this command, it shall received
another command to re-start the whole GSM process.
If the mobile is turned off after this command, then the power on will
automatically execute the start of the whole GSM process.
When the application wants to re-start the module (after having done a
AT+CFUN=0 command, and without having cut the power supply), it has to
send :
AT+CFUN=1
This command starts again all the GSM stack and GSM functionality, a
complete software reset is done. All parameters are reset to their previous
E2P value if AT&W was not used.
If you write entries in phonebook (+CPBW) and then reset the module
directly (AT+CFUN=1, without any AT+CFUN=0 before), some entries may
not be written (SIM task does not have the time to write entries in SIM card)

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AT commands interface

Also, the OK response will be sent at the last defined baud rate defined
by +IPR command. With autobauding the response can be at a different
baud rate, so it is better to save the defined baud rate with AT&W before
directly send the AT+CFUN=1 command.
Application to GSM
GSM to application
Application to GSM

AT+CFUN?
+CFUN: 1
OK
AT+CFUN=0

GSM to application
Application to GSM

OK
AT+CFUN=1

GSM to application

Ask for current functionality level
Full functionality
Set minimum functionality, IMSI
detach procedure
Command valid
Set the full functionality mode with
a complete software reset
Command valid

4.12. Phone activity status +CPAS
This command returns the activity status of the mobile.
Application to GSM AT+CPAS
GSM to application +CPAS:
OK

Current activity status
can have the following values :
0 : ready (allow commands from TA/TE)
1 : unavailable (does not allow cmds)
2 : unknown
3 : ringing (ringer is active)
4 : call in progress
5 : asleep (low functionality)

4.13. Report Mobile Equipement errors

+CMEE

This command disables or enables the use of result code
"+CME ERROR : " or "+CMS ERROR :" instead of simply
"ERROR". See appendice 16.1 for +CME ERROR result codes description
and appendice 16.2 for +CMS ERROR result codes.
Application to GSM

AT+CMEE=0

GSM to application
Application to GSM

OK
AT+CMEE=1

GSM to application

Disable ME error reports, use only
« ERROR »
Enable « +CME ERROR : »
Or « +CMS ERROR : »

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AT commands interface

4.14. Keypad control +CKPD
Command syntax: +CKPD=
Execution command emulates ME keypad by giving each keystroke as a
character in a string .
The supported GSM sequences are listed in 16.11.
If emulating fails in an ME error, +CME ERROR: is returned.
If emulating succeeds, the result is dependent of the GSM sequence.
: string of following characters (0-9,*,#)

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CKPD="*#21#"
+CCFC: 0,7
AT+CKPD="1234"
+CME ERROR 3

Check all call forwarding status
Sequence not allowed

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AT commands interface

Call Control commands

5.1. Dial command D
Command syntax:

ATD [I / i] [G/g] [;]
ATD> [I / i] [G/g] [;]
ATD> mem [I / i] [G/g] [;]
ATD> [I / i] [G/g] [;]
ATD

The ATD command is used to establish a speech, data or fax call.
According to GSM 02.30, dial command also controls supplementary
services.
For a data or fax call, the application sends to the GSM module the
following ASCII string : (the bearer has to be selected before with the +CBST
command)
ATD

where is the called phone number.

For a voice call, the application sends to the GSM module the following
ASCII string : (the bearer may be selected before, if not a default bearer is
used)
ATD;

where is the called phone number.

Please, notice that in case of international number, the local
international prefix has not to be set (usually 00) but need to be replaced by
the '+' character.
Example : to establish a voice call to Wavecom from another country,
the AT command shall be :
ATD+33146290800;

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AT commands interface

Notice that some country can have particular numbering rules for their
GSM handset numbering.

The answer to the ATD command can be one of the following ones:
Verbose result code

Numeric (V0 set)

Description

if the call succeeds, for voice call
only

CONNECT

10,11,12,13,14,15

if the call succeeds, for data calls
only, takes the value
negotiated by the GSM module.

BUSY

If the called party is already in
communication

NO ANSWER

If no hang up is detected after a fixed
network time-out

NO CARRIER

Call setup failed or remote user
release.
Use
the
AT+CEER
command to know the failure cause

See paragraph 16.8 for the description of all numeric result codes
(ATV0)
Direct dialling from a phonebook location (stored in SIM card) can be
done with the following command :
ATD> ; for calling from the selected phonebook (by
+CPBS command)
ATD> "BILL";

for calling "BILL" from the the selected phonebook

ATD> mem (mem is “SM”, “FD” or “ON”, see +CPBS
command) is a way to directly dial from a phonebook number.
Application to GSM

AT+CPBS?

GSM to application

+CPBS:”FD”,5,10

Which
phonebook
selected ?
FDN
phonebook

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is
is

AT commands interface

Application to GSM

ATD>SM6;

GSM to application

selected, 5 locations are
used and 10 locations are
available.
Call index 6 from ADN
phonebook
Call succeeds

When FDN phonebook has been locked only the numbers beginning
with the digits of FDN phonebook entries can be called.
For example, if “014629” is written in the FDN phonebook all the phone
numbers beginning with these 6 digits can be called.
It’s allowed to override the CLIR supplementary service subscription for
this call only.
“I” means “invocation” (restrict CLI presentation)
“i” means “suppression” (allow CLI presentation).
It's allowed to control the CUG supplementary service information by
“G” or “g” for this call only. The index and info values set with command
+CCUG are used.
An outgoing call attempt could be refused if the AOC service is active
and the credit is expired (NO CARRIER)
When trying to make an outgoing call while there is an active call, the
active call is first put on hold, then the call setup is made.

According to GSM 02.30, GSM sequences may be controlled using dial
command. These sequences can contain “*”, “#”. But “;” is forbidden.
If the sequence is not supported or fails, +CME ERROR: is
returned.
See paragraph 16.11 to have the list of supported sequences.
Application to GSM

ATD*#21#

Check all call forwarding status

GSM to application

+CCFC: 0,7

No call forwarding

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AT commands interface

Application to GSM

ATD**61*+33146290800**25#

GSM to application
Application to GSM
GSM to application

OK
ATD*2#
+CME ERROR 3

5.2. Hang-Up command

The command ATH (or ATH0) is used by the application to disconnect
the remote user. In case of multiple calls, all calls are released (active, held
and waiting calls).
The specific Wavecom command ATH1 has been appended to
disconnect only the outgoing call. It can be useful in case of multi
communication.
Application to GSM
GSM to application

ATH
OK

Application to GSM

ATH1

GSM to application

5.3. Answer a call

ask for disconnection
All calls, if any, are
released
ask for outgoing call
disconnection
Outgoing call, if any, is
released

When the GSM module receives a call, it set the RingInd signal and
sends to the application the ASCII string “RING” or “+CRING: ” if
cellular result code (+CRC) is enabled. Then it waits for the application to
accept the call.
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

RING
ATA
OK
ATH
NO CARRIER

Incoming call
Answer to this incoming call
Call accepted
Disconnect call
Call disconnected

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AT commands interface

5.4. Remote disconnection
This message is used by the GSM module to indicate to the application
that an active call has been released by the remote user.
The GSM module sends "NO CARRIER" to the application, and set the
DCD signal.
Also, in case AOC, the module can stop the communication if the credit
is over (release cause 68 with +CEER command)

5.5. Extended error report

+CEER

If the last call setup (originating or answering) fails, this command gives
the reason of the call release.
Application to GSM
GSM to application
Application to GSM
GSM to application

ATD123456789 ;
NO CARRIER
AT+CEER
+CEER : Error
OK

outgoing voice call
Call setup failure
ask for reason of release
is the cause information
element
values
from
GSM
recommandation 04.08 or specific

The cause information element from GSM 04.08 is given below in
chapter 16.4, or in chapter 16.5 for specific failure causes.
The “NO CARRIER” indicates that the AT+CEER information is available
for a failure diagnostic.

5.6. DTMF signals

+VTD, +VTS

The GSM module offers the user application to send DTMF tones on the
GSM network. One command shall be used for defining the duration of the
tones (default value is 300 ms), the other for sending the Tones.
For defining the duration, the application uses :
AT+VTD=

where *100 gives the duration in ms.

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AT commands interface

If n < 4 the tone duration is 300 ms.
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+VTD=6
OK
AT+VTD=0
OK

for defining 600 ms tone duration
command valid
for setting the manufacturer default value

For sending DTMF tones (only when an active call exists), the
application uses :
AT+VTS=
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

where is in {0-9,*,#,A,B,C,D}

AT+VTS=A
OK
AT+VTS=11
+CME ERROR: 4
AT+VTS=4
+CME ERROR: 3

command valid
if the is wrong
if there is no communication

Example : to send the Tone sequence 13#, the application shall send :
AT+VTS=1;+VTS=3;+VTS=#
OK

5.7. Redial last number

ATDL

This command is used by the application to redial the last number used
in the ATD command. The last dialled number is displayed followed by “;” for
speech calls only
Application to GSM
GSM to application

ATDL
0146290800;
OK

5.8. Automatic dialing with DTR

redial last number
last call was a speech call
command valid

AT%Dn

This command allows to activate and deactivate automatic dialing of the
phone number stored in the ifirst location of ADN phonebook. The number is
dialed on DTR OFF to ON transition.

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AT commands interface

Sets commands :

AT%D[;]

Options :

n
;

(0-1)

for activate or deactivate the
automatic dialing.
Informs the module that the
number is a voice rather than
a fax or data number.

AT%D0

Deactivates automatic DTR dialing.

AT%D1;

Activates automatic DTR dialing if DTR switches from OFF to ON;
Dials the phone number in the first location of ADN phonebook.
Speech call
Activates automatic DTR dialing if DTR switches from OFF to ON;
Dials the phone number in the first location of ADN phonebook.
Data or Fax call.

AT%D1

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AT commands interface

Example :
Application to GSM
GSM to application

AT%D1;
OK

Activates DTR dialing.
Command has been
executed.

DTR is OFF
DTR switches ON

The number in the first
location of the ADN
phonebook is dialed
automatically.

DTR switches OFF

5.9. Automatic answer

The module goes on-hook.

ATS0

This S0-parameter controls the automatic answering feature of the
mobile.
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

ATS0=2
OK
ATS0?
002
OK
ATS0=0
OK

Automatic answer after 2 rings
Current value
always 3 characters with leading zeros
no automatic answer
command valid

All others S-parameters (S6,S7,S8 ...) are not implemented.

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AT commands interface

5.10. Incoming Call Bearer
Command syntax :

+CICB
AT+CICB=

This specific command is used for incoming call type when no incoming
bearer is given (single numbering scheme, see +CSNS).
values :
0:
1:
2:
Application to GSM
GSM to Application
Application to GSM
GSM to Application
Application to GSM
GSM to Application
Application to GSM
GSM to Application

Data
Fax
Speech
AT+CICB=1
OK
AT+CICB=2
OK
AT+CICB?
+CICB: 2
AT+CICB=?
+CICB: (0-2)

If no incoming bearer, force a fax call
Command accepted
If no incoming bearer, force a speech call
Command accepted
Interrogate value
Default incoming bearer: speech call
Test command
Speech, data or fax default incoming
bearer

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AT commands interface

5.11. Gain control

+VGR, +VGT

This command shall be used by the application to tune the receive gain
of the speaker and transmit gain of the microphone. The application shall
send
AT+VGR=

for the receive gain

AT+VGT=

for the transmit gain

0 to 15

+12 db

0 to 31

+14 db

16 to 31

+8.9 db

32 to 63

+17 db

32 to 47

+7.5 db

64 to 95

+20 db

48 to 63

+5.1 db

96 to 127

+23 db

64 to 79

+2.9 db

128 to 159

+26 db

80 to 95

+0.5 db

160 to 191

+29 db

96 to 111

-1.8 db

192 to 223

+32 db

112 to 127

-3.7 db

224 to 255

+35 db

128 to 143

-6.5 db

144 to 159

-8.9 db

160 to 175

-11.2 db

176 to 191

-13.6 db

192 to 207

-16 db

208 to 223

-18.5 db

224 to 239

-21 db

240 to 255

-23.5 db

16 levels for receive gain are provided and 8 levels for transmit gain.
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+VGR=25
OK
AT+VGT=45
OK

Command valid
Command valid

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AT commands interface

5.12. Microphone Mute Control +CMUT
Command syntax:

AT+CMUT =

This command instructs the module to set the microphone mute or not
for the active microphone (defined with+SPEAKER command). This
command is only allowed during a call.
takes the following values :
0 : microphone mute off (default value).
1 : microphone mute on.
Application to GSM
GSM to application

AT+CMUT=?
+CMUT : (0,1)
OK
AT+CMUT?
+CMUT : 0
OK
AT+CMUT=1
OK

Test command
Enable/disable mute

Application to GSM

AT+CMUT?
+CMUT : 1
OK
AT+CMUT=0

GSM to application

+CME ERROR: 3

Ask for current value
Mute is active (call
active)
Mute OFF (call not
active)
Command not valid

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

Ask for current value
Current value is OFF
Mute ON (call active)
Command valid

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AT commands interface

5.13. Speaker & Microphone selection

+SPEAKER

This specific command is used to choose the speaker and the
microphone. The application shall send
AT+SPEAKER=

SPEAKER ONE, MICRO ONE

SPEAKER TWO, MICRO TWO

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+SPEAKER=0
OK
AT+SPEAKER?
+SPEAKER: 0
OK

5.14. Echo Cancelation

SPEAKER ONE and MICRO one
Command valid
SPEAKER ONE and MICRO ONE
are active

+ECHO

Command syntax: AT+ECHO= , [,,,
, ]
This specific command is used to activate, deactivate or configure
the Echo Cancelation function (for voice calls, in small rooms, cars…)

Defined Values
:
0: Deactivate Echo
1: Activate Echo
2: Configure the echo cancelation (automatically stored in E2P)

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AT commands interface

: Number of taps of the adaptive filter. This value is directly
related to the length of the longest echo path (240 words = 30 ms echo path
delay). Values from 1 to 192, default is 160
: Threshold for convergence parameter. This specifies the
level of energy computed on samples needed to assume
algorithm convergence. A low value provides a high convergence and a high
value a high stability. Values from 0 to 45, default is 12.
: Double talk sensitivity. This reflect the ratio between received
and sent energy to assume double talk occured. A low value provides a high
sensibility and a high value a low one. Values from 0 to 10, default is 5.
: Far end speaker detection - algorithm adaptation. This is
related to then energy level needed on the receive path to allow filter taps
adaptation. If = 0 the algorithm will always adjust the filter. Values
from 0 to 1000, default is 512.
: Number of samples used to compute energy for algorithm
convergence evaluation. Values from 1 to 30, default is 10
Read Command:

AT+ECHO?

This command returns the current settings of the Echo cancelation.
Returns:+ECHO:,,,,,

0
1
2

Echo Desactivate.
Echo Activate for Mic/Speak one.
Echo Activate for Mic/Speak two.

Example:
Application to GSM
GSM to application
Application to GSM

AT+SPEAKER?
+SPEAKER: 0
OK
AT+ECHO=1

GSM to application
Application to GSM
GSM to application

OK
AT+ECHO?
+ECHO: 1,160,12,5,512,10

SPEAKER ONE and MICRO ONE
are active
Active Echocancelation for
Mic/Speak one.
Read current settings

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AT commands interface

Application to GSM
GSM to application

AT+ECHO=2
+CME ERROR: 3

Configure the Echo cancelation
The parameters are missing.

Application to GSM
GSM to application

AT+ECHO=2,0,12,5,512,10
+CME ERROR: 3

Configure the Echo cancelation
The parameter is wrong.
Values from 1 to 192

5.15. SideTone modification
Command syntax :

+SIDET

AT+SIDET=,

This specific command is used to get an echo of the voice in the
speaker (to have a microphone feedback in the speaker)

Level

Presence

0 db

SideTone is disabled

- 6 db

SideTone is enabled

-12 db

-18 db

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+SIDET=1,0
OK
AT+SIDET?
+SIDET: 1,0
OK

Command valid
Current value
Command valid

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AT commands interface

5.16. Initialise Voice Parameters +VIP
This command allows to restore the factory settings about the voice
parameters from EEPROM.
These voice parameters include :
•
•
•
•
•

Gain control,
Microphone mute control,
Speaker & Microphone selection,
Echo cancelation,
Side tone modification.

Command

Return

AT+VIP=
AT+VIP=?

+VIP: 1

AT+VIP?

+VIP: (1)

Example :
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+VIP?
+VIP: 1
OK
AT+VIP=2
+CME ERROR: 3
AT+VIP=1
OK
AT+VIP=?
+VIP: (1)
OK

Syntax error
Restore the factory settings in
EEPROM.
The command has been executed
List of supported s

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AT commands interface

Network service commands

6.1. Signal Quality

+CSQ

This command shall be used to know the received signal strength
indication () and the channel bit error rate () with or without any
SIM card inserted.
:
0
: -113 dBm or less
1
: -111 dBm
2...30 : -109 to -53 dBm
31
: -51dBm or greater
99
: not known or not detectable
:
0...7 : as RXQUAL values in the table GSM 05.08
99 : not known or not detectable

Application to GSM
GSM to application

AT+CSQ
+CSQ: ,
OK

and as defined before

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AT commands interface

6.2. Operator selection

+COPS

To select the operator, three possibilities exist :
1- The mobile enters the manual mode, and then try to find an operator
which is indicated by the application. If it finds and registers correctly, then
the mobile stays in idle mode.
2- The mobile enters the automatic mode, and then try to find the home
operator. If it finds and registers correctly, then the mobile stays in idle mode ;
if not, the mobile search automatically another network.
3- The mobile enters the manual/automatic mode, and then try to find
an operator which is indicated by the application (like in manual mode) . If this
attempt fails the automatic mode is entered.
Read command returns the current mode and the currently selected
operator. Just notice that in manual mode, this PLMN could not be the one
the mobile has to register (searching phase).
To force an attempt to select and register a network operator, the
application must send the following command :
Command syntax:
AT+COPS=, [ [ , ] ]
Possible responses for AT+COPS=:
OK

(Network is selected in full service)

+CME ERROR: 30

(No network service),

+CME ERROR: 32

(Network not allowed – emergency calls only)

+CME ERROR: 3

(During a call not allowed)

+CME ERROR: 4

(Wrong parameters)

Response syntax for AT+COPS?:
+COPS: [, , ]

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AT commands interface

Response syntax for AT+COPS=?:
+COPS: [list of supported (, long alphanumeric ,
short alphanumeric s, numeric ) s]

The parameters values are the following ones:
:
0: automatic (default value)
1: manual
3: set only (for read command AT+COPS?)
4: manual / automatic ( shall be present), if manual
selection fails, automatic mode is entered.

: format of field
0: long format alphanumeric
1: short format alphanumeric
2: numeric (default value)
: status of
0: unknown
1: available
2: current
3: forbidden
: operator identifier
operator selection).,

(MCC/MNC in numeric format only for

Long alphanumeric format can be up to 16 characters long (see
appendice 16.12 for operator names description, field is “Name”)
Short alphanumeric format can be up to 8 characters long.
Application to GSM
GSM to application

AT+COPS?
+COPS: 0,2,20801
OK

Ask for current plmn
Home PLMN is France telecom
Itineris

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AT commands interface

Application to GSM
GSM to application

AT+COPS=?
+COPS: (2,”F Itineris”,
“Itine”,”20801”), (3,”F SFR”,
“SFR”,”20810”)
OK
AT+COPS=1,2,20810
+CME ERROR: 32

Application to GSM
GSM to application
Application to GSM

AT+COPS=1,1,20810
+CME ERROR: 3
AT+COPS=0,2

GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

OK
AT+COPS=3,0
OK
AT+COPS?
+COPS: 0,0,”F Itineris”
OK
AT+COPS=1,0,”F SFR”
+CME ERROR: 32

Application to GSM

AT+COPS=4,0,”F SFR”

GSM to application
Application to GSM
GSM to application

OK
AT+COPS?
+COPS: 0,0,”F Itineris”
OK

Ask for PLMN list
Home PLMN is France Telecom
SFR network has been seen

Ask for registration on SFR network
Network not allowed – emergency
calls only
Ask for registration on SFR network
Operation not allowed
Ask for registration on home
network
Succeed
Ask for setting alphanumeric format
Succeed
Ask for current plmn
Home PLMN is France telecom
Itineris
Ask for registration on SFR network
Network not allowed – emergency
calls only
Ask for registration on SFR network
in manual/automatic mode
Command succeed
Ask for current plmn
Home PLMN is France telecom
Itineris !
So the attempt to register on SFR
Network has failed but the
automatic selection on Home
PLMN has succeed.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

6.3. Network registration +CREG
This command is used by the application to know the registration status
of the mobile.
Command syntax :

AT+CREG=

Response syntax :

+CREG: , [ ,, ]
for AT+CREG? command only

0: Disable network registration unsolicited result code (default)
1: Enable network registration code result code +CREG :
2: Enable network registration and location information unsolicited
result code +CREG: ,, if there is a change of the network cell.

0 : not registered, ME is not currently searching a new operator
1 : registered, home network
2 : not registered, ME currently searching a new operator to register to
3 : registration denied
4 : unknown
5 : registered, roaming
: string type; two byte location area code in hexadecimal format
(e.g. “00C3” equals 193 in decimal)
: string type; two byte cell ID in hexadecimal format
Application to GSM
GSM to application
Application to GSM

AT+CREG?
+CREG: ,
OK
AT+CREG=

GSM to application
Application to GSM
GSM to application

OK
AT+CREG=?
+CREG: (0-2)

as defined before
disable/enable
network
unsolicited result code
command valid

registration

0,1,2 values are supported

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AT commands interface

6.4. Read operator name +WOPN
This specific command returns the operator name in alphanumeric
format when given the numeric format.
Command syntax:

AT+WOPN=,

Response syntax:

+WOPN: ,

is the required format. Only long (0) and short (1) alphanumeric
formats are supported.
is the operator in numeric format.
is the operator in long or short alphanumeric format (see
appendice 16.12 for operator names description)

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+WOPN=?
OK
AT+WOPN=0,20801
+WOPN: 0,"F Itineris"
OK
AT+WOPN=0,99999
+CME ERROR : 22

6.5. Preferred operator list

Test command
Give an operator in numeric format
Alphanumeric answer
Give a wrong operator
Not Found

+CPOL

This command is used to edit the SIM preferred list of networks.
Command syntax:

AT+CPOL= [ ][ , [ , ] ]

The different possibilities are:
AT+CPOL =

to delete an entry.

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AT commands interface

AT+CPOL = , to set the format used by the read command
(AT+CPOL?).
AT+CPOL = , , to put in the next free location.
AT+CPOL = , , to write in the
at the .
The supported format are those of the +COPS command.
The length of this list is limited to 8 entries .

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

Application to GSM
GSM to application

AT+CPOL?
+CPOL: 1,2,26201
+CPOL: 6,2,20810
OK
AT+CPOL=,0
OK
AT+CPOL?
+CPOL: 1,0,”D1-TELEKOM”
+CPOL: 6,0,”F SFR”
OK
AT+CPOL=7,2,20801
OK
AT+CPOL?
+CPOL: 1,0,”D1-TELEKOM”
+CPOL: 6,0,”F SFR”
+CPOL: 7,0,”F Itineris”
OK
AT+CPOL=7
OK
AT+CPOL?
+CPOL: 1,0,”D1-TELEKOM”
+CPOL: 6,0,”F SFR”
OK
AT+CPOL=8,2,77777
OK
AT+CPOL?
+CPOL: 1,0,”D1-TELEKOM”
+CPOL: 6,0,”F SFR”
+CPOL: 8,2,77777
OK

Ask for preferred list of networks
Preferred list of networks in
numeric format

Application to GSM

AT+CPOL=9,0,”F Itineris”

Application to GSM
GSM to application

AT+CPOL?
+CPOL: 1,0,”D1-TELEKOM”
+CPOL: 6,0,”F SFR”
+CPOL: 8,2,77777
+CPOL: 9,0,”F Itineris”
OK

Add an inexistent network to the list
Format text
Ask for preferred list of networks
Preferred list of netwoks in long
alphanumeric format.

Application to GSM
GSM to application
Application to GSM
GSM to application

Select long alphanumeric format
Ask for preferred list of networks
Preferred list of networks in long
alphanumeric format
Add a network to the list
Ask for preferred list of networks
Preferred list of networks in long
alphanumeric format
Delete 7th location
Ask for preferred list of networks
Preferred list of networks in long
alphanumeric format
Add an inexistent network to the list
Ask for preferred list of networks
Preferred list of networks in long
alphanumeric format but 8th entry is
unknown so the module edits it in
the numeric format.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

Security commands

7.1. Enter PIN +CPIN
This command is used to enter ME passwords (CHV1 / CHV2 / PUK1 /
PUK2…) which are needed before any other functionality of the ME can be
used. The CHV1/CHV2 length is between 4 and 8 digits, the PUK1/PUK2
length is 8 digits only.
If the user application try to establish an outgoing call before having
validated the SIM PIN code (CHV1), then the GSM module will refuse the
"ATD" command with a "+CME ERROR: 11" (SIM PIN required).
It's up to the application to validate the PIN after each reset or power on
if the PIN was enabled. The application shall therefore use the command :
AT+CPIN=
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CPIN=1234
OK
AT+CPIN=5678
+CME ERROR: 3

enter PIN
PIN code is correct
enter PIN
operation not allowed, PIN previously entered

After 3 unsuccessful codes, the PUK will then be required. The PUK
validation forces the user to enter as a second parameter a new PIN code
which will be the new PIN code if the PUK validation succeeds. The CHV1 is
then enabled if the PUK1 is correct. The application shall therefore use the
command :
AT+CPIN=,
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CPIN=00000000,1234
+CME ERROR: 16
AT+CPIN=12345678,1234
OK

enter PUK and new PIN
Incorrect PUK
enter PUK and new PIN, 2nd attempt
PUK correct, new PIN stored

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AT commands interface

To know which code has to be entered (or not), the following
interrogation command can be used :
AT+CPIN?
The possible responses are :
+CPIN: READY
+CPIN: SIM PIN
+CPIN: SIM PUK
+CPIN: SIM PIN2
+CPIN: SIM PUK2
+CPIN: PH-SIM PIN
+CPIN: PH-NET PIN
+CME ERROR:

ME is not pending for any password
CHV1 is required
PUK1 is required
CHV2 is required
PUK2 is required
SIM lock (phone-to-SIM) is required
Network personnalisation is required
SIM failure (13) absent (10) etc...

Please note that in this case the mobile does not finish its response with
the OK string.
The response +CME ERROR : 13 (SIM failure) is returned after 10
unsuccessful PUK presentations. The SIM card is then out of order and shall
be replaced by a new one.
Example : 3 failed PIN validations + 1 successful PUK validation
AT+CPIN?
+CPIN: SIM PIN
AT+CPIN=1235
+CME ERROR: 16
AT+CPIN=1236
+CME ERROR: 16
AT+CPIN=1237
+CME ERROR: 16
AT+CPIN?
+CPIN: SIM PUK
AT+CPIN=99999999,5678
OK
AT+CPIN?
+CPIN: READY

Read the PIN status
The GSM module requires SIM PIN
First attempt to enter a SIM PIN
Bad PIN
Second attempt
Bad PIN
Third attempt
Bad PIN
Read PIN state
The GSM module requires PUK
The PUK is entered, the new PIN shall be
5678 PUK validation is OK. New Pin is 5678
Read PIN state
GSM module is ready

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AT commands interface

If the user try to do something which requires PIN2 (CHV2) the GSM
module will refuse his action with a “+CME ERROR: 17” (SIM PIN2 required).
Then the GSM module is waiting SIM PIN2 to be given.
Of course if SIM PIN2 is blocked , SIM PUK2 is required instead of SIM
PIN2.
For instance, the GSM module needs PIN2 to write in the fixed dialling
phonebook (FDN) , so if SIM PIN2 authentification has not been done during
the current cession the SIM PIN2 is required:
Application to GSM
GSM to application
Application to GSM

AT+CPBS=”FD”
Choose FDN
OK
AT+CPBW=5,"01290917",129,"Jacky" write in FDN at location 5

GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM

+CME ERROR:17
AT+CPIN?
SIM PIN2
AT+CPIN=5678
OK
AT+CPBW=5,"01290917",129,"Jacky"

SIM PIN2 is required

GSM to application

Now writing in FDN is
allowed

SIM PIN2 is required
Enter SIM PIN2
write in FDN at location 5

Please note that the GSM module ask only once PIN2 or PUK2, so if
they aren’t entered right, the next +CPIN? command will return “+CPIN:
READY”.
Remark
In the way Application to GSM, an "h" character shall be added before
the PIN value if cyphering mode (with D.E.S algorithm ) is on. See +EXPKEY
command.
Same remark for +CLCK and +CPWD commands.

7.2. Enter PIN2 +CPIN2
This specific command is used to validate the PIN2 code (CHV2), or to
validate the PUK2 code (UNBLOCK CHV2) and to define a new PIN2 code.

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AT commands interface

Of course +CPIN command allows to validate PIN2 or PUK2 codes but
only when the last executed command resulted in PIN2 authentification
failure.
The PIN2 length is between 4 and 8 digits, the PUK2 length is 8 digits
only.
AT+CPIN2=
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CPIN2=1234
OK
AT+CPIN2=5678
+CME ERROR: 3

enter PIN2
PIN2 code is correct
enter PIN2
operation not allowed,
previously entered

PIN2

After 3 unsuccessful codes, the PUK2 will then be required. The PUK2
validation forces the user to enter as a second parameter a new PIN2 code
which will be the new PIN2 code if the PUK1 validation succeeds. The
application shall therefore use the command :
AT+CPIN2=,
Application to GSM
GSM to application
Application to GSM

AT+CPIN2=00000000,1234
+CME ERROR: 16
AT+CPIN2=12345678,1234

GSM to application

enter PUK2 and new PIN2
Incorrect Password (PUK2)
nd
enter PUK2 and new PIN1, 2
attempt
PUK2 correct, new PIN2 stored

To know which code has to be entered (or not), the following
interrogation command can be used :
AT+CPIN2?
The possible responses are :
+CPIN2: READY
+CPIN2: SIM PIN2
+CPIN2: SIM PUK2
+CME ERROR:

No PIN2 is needed
PIN2 is required
PUK2 is required
Absent (10) etc...

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AT commands interface

7.3. PIN remaining attempt number +CPINC
This specific command instructs the module to display the number of valid tries for PIN1
(CHV1), PIN2 (CHV2), PUK1 (UNBLOCK CHV1) and PUK2 (UNBLOCK CHV2) identifiers.
Command syntax :

AT+CPINC

Response syntax :

+CPINC : ,,,

, are the remaining tries of PIN1, PIN2 (0 = blocked, 3 max)
, are the remaining tries of PUK1, PUK2 (0 = blocked, 10 max)

To make it running, the card should be present at the initialisation time,
in the opposite case, an error will be sent (+CME ERROR : 10).
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CPINC
+CPINC : 2,3,10,10
AT+CPINC?
+CPINC : 2,3,10,10
AT+CPINC=?
OK

7.4. Facility lock

Ask remaining tries
First CHV1 attempt was a failure
Ask current values
First attempt was a failure
Ask possible values

+CLCK

This command shall be used by the application to lock, unlock or
interrogate a ME or network facility .
Command syntax: AT+CLCK= ,[,[,] ]
Response syntax: +CLCK: [ , ]
+CLCK: ,
[…]]

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

The following values are supported:
"PS" : SIM lock facility with a 8 digits password.
"SC" : PIN enable ( = 1) / disable ( = 0)
"AO" : BAOC (Barr All Outgoing Calls)
"OI" : BOIC (Barr Outgoing International Calls)
"OX" : BOIC-exHC (Barr Outg. Internat Calls except to Home Country)
"AI" : BAIC (Barr All Incoming Calls)
"IR" : BIC-Roam (Barr Inc. when Roaming outside Home Country)
"AB" : All Barring services
"AG" : All outGoing barring services
"AC" : All inComing barring services
"PN" : Network lock with a 8 digits password (NCK).
“FD”: SIM Fixed Dialling Numbers (FDN) memory feature
(PIN2 is required as )

0 : unlock the facility
1 : lock the facility
2 : query status

: A facility status can be changed for only one class, or for all
classes (7 or omitted).
1 : Voice (telephony)
2 : Data (refer to all bearer services)
4 : Fax (facsimile services)
8 : Short Message service
7 : equal to all classes (Default value)

Any attempt to combine different classes will result in activation /
desactivation / interrogation of all classes.

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AT commands interface

The password maximum length is given with the AT+CPWD=?
command.
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CLCK="SC",1,1234
OK
AT+CLCK?
+CLCK: ("PS", 0),("SC", 1), ("PN",0),
(“FD”,0)
OK
(no longer supported in GSM 07.07)
AT+CLCK="SC",0,5555
+CME ERROR: 16
AT+CPIN=1234
OK
AT+CLCK= ?
+CLCK : ("PS","SC","AO","OI", "OX",
"AI", "IR","AB", "AG","AC", “FD”, "PN")
OK
AT+CLCK="PN",1,12345678
OK
AT+CLCK="AO",1,1234,2
OK
AT+CLCK="AO",2
+CLCK : 1,2
OK

7.5. Change password
Command syntax :

enable PIN
PIN was right
Read PIN status
PIN is enabled, no SIM
lock, no network lock, no
information on Call barring
disable PIN
PIN was wrong
Enter PIN
PIN was good
request supported facilities
supported facilities

Activate network lock
Network lock activated
Activate All Outgoing Calls
Barring for Data Calls
Call Barring is activate
Query BAOC status
BAOC activate for Data
calls only

+CPWD
AT+CPWD= , ,

This command shall be used by the application to change a password
(PIN, call barring, NCK...). The facility values () are the same as for
+CLCK command, with a “P2” facility to manage SIM PIN2.
For the network lock ("PN"), the unlock is forbidden after 10 failed
attempts to disable (unlock) the network lock with an incorrect password.
Application to GSM
GSM to application

AT+CPWD=?
+CPWD: ("PS", 8),("SC", 8),("AO", 4),
("OI", 4), ("OX", 4),("AI", 4),("IR", 4),

Possible values
CHV1/CHV2 must be on 8
digits maximum (4 min)

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AT commands interface

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

("AB", 4), ("AG", 4), ("AC", 4),
("P2", 8), ("FD", 8), ("PN", 8)
OK
AT+CPWD="SC",1234,5555
OK
AT+CPWD="SC",1234,5555
+CME ERROR: 16
AT+CPIN=5555
OK
AT+CPWD="PN",12345678,00000000
OK

For Call Barring, 4 digits
maximum
change PIN
PIN iwas good
Change PIN
PIN was wrong
Enter PIN
PIN was good
change NCK
NCK changed for net lock

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AT commands interface

Phonebook commands

8.1. Select phonebook memory storage +CPBS
This command selects phonebook memory storage. The available
phonebooks are the ADN (SIM), FDN (SIM fixdialling, restricted phonebook),
MSISDN (SIM own numbers) and EN (SIM emergency number) phonebooks.
Application to GSM
GSM to application

AT+CPBS= "SM"
OK

Application to GSM
GSM to application

AT+CPBS=?
+CPBS: ("SM",”FD”,”ON”,"EN")
OK
AT+CPBS ?
+CPBS : "SM",10,20
OK

Application to GSM
GSM to application

Select ADN phonebook
ADN
phonebook
is
selected
Possible values
ADN,
FDN,
MSISDN
phonebooks supported
Status
ADN phonebook selected,
10 used locations, 20
locations available

The ADN phonebook could not be selected is FDN is active.

8.2. Read phonebook entries +CPBR
This command returns phonebook entries for a location range from the
current phonebook memory storage selected with +CPBS.

Application to GSM
GSM to application

AT+CPBR=?
+CPBR: (1-50), 20,10
OK

Application to GSM

AT+CPBR=12,14

Test command
50 locations (from 1 to 50),
max length of 20 for phone
10 characters max for the
associated text
Read entries from 12 to 14

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AT commands interface

GSM to application

Application to GSM
GSM to application
Application to GSM
GSM to application

+CPBR : 12,"112",129,"Emergency"
+CPBR : 13,"+331290909",145, "Fred"
+CPBR :
14, "0146290808",129, "Zazi"
OK
AT+CPBR=10
+CPBR :10,"0146290921",129,"Rob"
OK
AT+CPBR=52
+CME ERROR: 21

Display locations 12,13,14
with Location, Number,
Type (TON/NPI), Text

Read entry 10
Display location 10
Read entry 52 (wrong)
Invalid index

8.3. Find phonebook entries +CPBF
This command returns phonebook entries which alphanumeric field start
with a given string. The AT+CPBF= "" command can be used to display all
phonebook entries sorted in alphabetical order.
This command is not allowed for "EN" phonebook, which does not
contain alphanumeric field.
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application

AT+CPBF=?
+CPBF: 20,10
OK
AT+CPBF= "E"
+CPBF : 12,"112",129,"Emergency"
+CPBF : 15,"+331290101",145, "Eric"
OK
AT+CPBF="H"
+CME ERROR: 22

Test command
max length of 20 for phone
10 characters for the text
Read entries with "E"
Display locations with text
field starting with "E"
Read entries with "H"
Entry not found

8.4. Write phonebook entry +CPBW
This command writes phonebook entry in location number in the
current phonebook memory storage.
This command is not allowed for "EN" phonebook, which is not writable.
Application to GSM
GSM to application

AT+CPBW=?
+CPBW: (1-50),20,(129,145),10

Test command
50
locations,

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phone

AT commands interface

OK
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

length=20, TON/NPI of
129 or 145, text length=10
AT+CPBW=3
Erase location 3
OK
Location 3 erased
AT+CPBW=5,"112",129 ,"SOS"
Write at location 5
OK
Location 5 written
AT+CPBW=5,"01290917",129,"Jacky" Overwrite location 5
OK
AT+CPBW=,"+33145221100",145,
"SOS"
OK
AT+CPBW=,"0345221100",129,"SOS"

+CME ERROR: 20
AT+CPBW=57,"112",129 ,"WM"
+CME ERROR: 21
AT+CPBW=7,"012345678901234567
890",129 ,"WAVE"
+CME ERROR: 26
AT+CPBW=7,"0122334455",129 ,
"WAVECOM TEL"
+CME ERROR: 24

Location 5 is overwritten
Write at the first free
location
Free location is written
Write at the first free
location
Phonebook full
Write at loc 57 (wrong)
Invalid index
Write at loc 7 a long Phone
number (21 digits)
Phone too long
Write at loc 7 a long Text
(11 characters)
Text too long

When the fixed dialling phonebook (FDN) is locked , this command is not
allowed. Moreover , when FDN is unlocked , PIN2 is required to write in the
FDN phonebook.
But if PIN2 authentification has been done during the current cession ,
+CPBW command with FDN is allowed .
Application to GSM
GSM to application
Application to GSM

AT+CPBS=”FD”
Choose FDN
OK
AT+CPBW=5,"01290917",129,"Jacky" write in FDN at location 5

GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM

+CME ERROR:17
AT+CPIN?
SIM PIN2
AT+CPIN=5678
OK
AT+CPBW=5,"01290917",129,"Jacky"

SIM PIN2 is required
SIM PIN2 is required
Enter SIM PIN2
write in FDN at location 5

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AT commands interface

GSM to application

Now writing in FDN is
allowed

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AT commands interface

8.5. Phonebook phone search +CPBP
This specific command instructs the module to look in the phonebook
for an item having the same phone number that defined in parameter.
Command syntax :

AT+CPBP=

is coded like all phone numbers in GSM 07.07 or GSM
07.05 .
Application to GSM

AT+CPBP= "+331290101"

GSM to application

+CPBP : 15,"+331290101",145, "Eric"
OK
AT+CPBP= "+331290101"

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

+CPBP : 15,"+331290101",145, "Eric"
OK
AT+CPBP= "+331290101"
+CPBP : 15,"+331290101",145, "Eric"
OK
AT+CPBP= "01290101"
+CPBP : 15,"+331290101",145, "Eric"
OK
AT+CPBP= "0129"
+CME ERROR: 22

Read entries with
phone number
Display location with
phone number
Read entries with
phone number
Display location with
phone number
Read entries with
phone number
Display location with
phone number
Read entries with
phone number
Display location with
phone number
Read entries with "H"
Entry not found

this
this
this
this
this
this
this
this

8.6. Move action in phonebook +CPBN
Command syntax:

AT+CPBN =

This specific command instructs the module to make a forward or a
backward move in the phonebook (in alphabetical order).
This command is not allowed for "EN" phonebook, which does not
contain alphanumeric field.

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AT commands interface

may take the following values : 0 for First item, 1 for Last item, 2
for Next valid item in alphabetical order, 3 for Previous valid item in
alphabetical order, 4 for Last read item and 5 for Last written item.

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CPBN= ?
+CPBN=<0-3>
AT+CPBN= 0
+CPBN : 15,"+331290101",145, "Eric"
OK
AT+CPBN=2
+CPBN :5,"+33147658987",145, "Fran
k"
OK
AT+CPBN=2
+CPBN : 6,"+331290302",145, "Marc"
OK
AT+CPBN=3
+CPBN :5,"+33147658987",145, "Fran
k"
OK
AT+CPBN=1
+CPBN : 6,"+331290302",145, "Marc"
OK
AT+CPBN=2
+CPBN : 15,"+331290101",145, "Eric"
OK

Test Command
Possible Modes
Read the first location
Display the first location
Read the next location
Display
the
second
location
Read the next location
Display the third location
Read the previous location
Display
the
second
location
Read the last location
Display the last location
Read the next location
Display the first location

Using mode 4 and 5 with +CPBF command and CPBW :
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application
Application to GSM

AT+CPBF=”Er”
+CPBF : 15,"+331290101",145, "Eric"
OK
AT+CPBN=2
+CPBN :5,"+33147658987",145, "Fran
k"
OK
AT+CPBF=”Er”
+CPBF : 15,"+331290101",145, "Eric"
OK
AT+CPBN=4

Find “Er” in phonebook
Display this location
Read the next location
Display
the
following
location
Find “Er” in phonebook
Display this location
Read

the

Last

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read

AT commands interface

GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
GSM to application
Application to GSM
GSM to application

location
Display the Last read
location
AT+CPBW=,"0146290800",129, "WM" Write an item at the first
free location
OK
No information about this
location …
AT+CPBN=4
Read the Last read
location
+CPBN :15,"+331290101",145, "Eric" Display the Last read
location
+CPBN : 38,"0146290800",129, "WM" Display the Last writen
item with its location.
AT+CPBN=4
Read the Last read item
+CPBN : 38,"0146290800",129, "WM" Now the last read item is
the last writen item too
+CPBN :15,"+331290101",145, "Eric"

Please note that the AT+CPBN=5 command is useful after an
AT+CPBW command used without a location.

8.7. Subscriber number +CNUM
This command returns the MSISDN(s) related to the subscriber.
If subscriber has different MSISDNs for different services, each MSISDN
is returned in a separate line.
Command syntax :

AT+CNUM

Response syntax ;
+CNUM : , ,
+CNUM : , , ....
Defined values

: optional alphanumeric string associated with

: string type phone number of format specified by

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

Application to GSM
GSM to application
Application to GSM
GSM to application

: type of adress octet in integer format

AT+CNUM
+CNUM : "Phone" , "0612345678", 129
+CNUM : "Fax", "0687654321",129
AT+CNUM= ?
OK

Get MSISDN(s)
MSISDNs

8.8. Avoid phonebook init +WAIP
This specific command allows to inhibit the initialization of SIM
phonebooks (loading of the ADNs and FDNs only) during the next boots.
Command syntax :

AT+WAIP=

Action

Normal initialization (with phonebooks)

No phonebook initialization for ADN and FDN

Application to GSM
GSM to application

Application to GSM

AT+WAIP?
+WAIP : 0
OK
AT+WAIP= ?
+WAIP : (0,1)
OK
AT+WAIP=1

GSM to application
Application to GSM

OK
AT&W

Application to GSM
GSM to application

current values ?
Default
value
phonebooks)
possible values ?
disable / enable

(init

Inhibit
initialization
of
phonebooks (next boot)
no answer
Save
modifications
in
EEPROM

Be careful: The given value should be stored in EEPROM, so the
command AT&W must be used to save the new value.

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AT commands interface

Short Messages commands

9.1. Parameters definition

Destination Address, coded like GSM 03.40 TP-DA

Data Coding Scheme, coded like in document [5].

Discharge Time in string format :

"yy/MM/dd,hh :mm :ss±zz"

(Year [00-99], Month [01-12], Day [01-31], Hour, Minute,
Second and Time Zone [quarters of an hour] )

First Octet, coded like SMS-SUBMIT first octet in document [4],
default value is 17 for SMS-SUBMIT

Place of storage in memory.
Text mode (+CMGF=1): number of characters
PDU mode (+CMGF=0): length of the TP data unit in octets
Memory used to list, read and delete messages
(+CMGL, +CMGR and +CMGD).
Memory used to write and send messages
(+CMGW, +CMSS).

CBM Message Identifier.

Message Reference.

Originator Address.

Protocol Identifier.

For SMS : GSM 04.11 SC address followed by GSM 03.40
TPDU in hexadecimal format, coded as specified in doc [4]
For CBS : GSM 03.41 TPDU in hexadecimal format

Recipient Address.

Service Center Address

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AT commands interface

Service Center Time Stamp in string format :
"yy/MM/dd,hh :mm :ss±zz"
(Year/Month/Day,Hour:Min:Seconds±TimeZone)

CBM Serial Number

Status of a SMS-STATUS-REPORT

status of message in memory.

Type-of-Address of .

Type-of-Address of .
Number of message locations in .
Number of messages locations in Total number of messages locations in .
Total number of messages locations in

Validity Period of the short message, default value is 167

9.2. Select message service

+CSMS

The supported services are GSM originated (SMS-MO) and terminated
short message (SMS-MT), Cell Broadcast Message (SMS-CB) services.
The syntax is : AT+CSMS=
:
0 : SMS AT commands are compatible with GSM 07.05 Phase 2
version 4.7.0.
1 : SMS AT commands are compatible with GSM 07.05 Phase 2 +
version .
Application to GSM
GSM to application
Application to GSM
GSM to application
GSM to application

AT+CSMS=0
+CSMS: 1, 1, 1
OK
AT+CSMS=1
+CMS ERROR: 301
+CSMS: 0, 1, 1, 1
OK

SMS AT command Phase 2 version 4.7.0
SMS-MO,SMS-MT and SMS-CB supported
SMS AT command Phase 2 +
SMS service Phase 2+ not supported
GSM 03.40 et 03.41 (SMS AT command
Phase 2 version 4.7.0),

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AT commands interface

Application to GSM
GSM to application

SMS-MO,SMS-MT and SMS-CB supported
Possible service
Only GSM 03.40 et 03.41 is possible (SMS
AT command Phase 2 version 4.7.0)

AT+CSMS=?
+CSMS: (0)
OK

9.3. Preferred Message Storage

+CPMS

This command allows to define the message storage area to be used for
reading, writing…
Command syntax :

AT+CPMS=, []

: Memory used to list, read and delete messages. It can be:
- “SM” : SMS message storage (in SIM) (default)
- “BM”: CBM message storage (in volatile memory).
: Memory used to write and send messages
- “SM” : SMS message storage (in SIM) (default).
If the command is correct, the following indication message is sent:
+CPMS: ,,,
When is selected, all following +CMGL, +CMGR and
+CMGD commands are related to the type of SMS stored in this memory.
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CPMS=?
+CPMS: (("SM","BM"),("SM"))
OK
AT+CPMS?
+CPMS: "SM", 3, 10,"SM",3,10
OK
AT+CPMS="AM"
+CMS ERROR: 302
AT+CPMS="BM"
+CPMS: 2, 20,3,10
OK

Possible message storages
Read, list, delete: SMS or CBM
Write,send: SMS
Read it
Read, write…SMS from/to SIM
3 SMS are stored in SIM. 10 is the
total available SIM memory.
Select false message storage
Select CBM message storage
Read, list,delete CBM from RAM
2 CBM are stored in RAM

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AT commands interface

Application to GSM
GSM to application

AT+CPMS?
+CPMS: "BM", 2, 20,"SM",3,10
OK

Read it
Read, list,delete CBM from RAM
Write SMS to SIM.

9.4. Preferred Message Format +CMGF
The formats implemented are the text mode and the PDU mode.
In PDU mode, a complete SMS Message including all header information
is passed as a binary string (in hexadecimal format, so only this set of
characters is allowed : {‘0’,’1’,’2’,’3’,’4’,’5’,’6’,’7’,’8’,’9’, ‘A’, ‘B’,’C’,’D’,’E’,’F’} ).
Each pair or characters is converted to a byte (ex : ‘41’ is converted to the
ASCII character ‘A’, whoes ASCII code is 0x41 or 65).
In Text mode, every commands and responses are in ASCII characters.
The chosen format is stored in EEPROM by the command +CSAS.
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CMGF ?
+CMGF: 1
OK
AT+CMGF=?
+CMGF: (0-1)
OK

current message format
Text mode
Possible message format
Text or PDU modes are
available

Example to send a SMS Message in PDU mode
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CMGF=0
OK
AT+CMGS=14
0001030691214365000004C9E9340B
+CMGS: 4
OK

PDU message format
PDU mode valid
Send complete MSG in
PDU mode, no SC address
MSG correctly sent,
is returned

The message is composed of the SC address (« 00 means no SC
address given, use default SC address read with +CSCA command) and the
TPDU message.
The length of octets of the TPDU buffer is 14, coded as GSM 03.40

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AT commands interface

In this case the TPDU is : 0x01 0x03 0x06 0x91 0x21 0x43 0x65 0x00
0x00 0x04 0xC9 0xE9 0x34 0x0B, which means regarding GSM 03.40 :

0x01 (SMS-SUBMIT, no validity period)

(TP-MR):

0x03 (Message Reference)

(TP-DA) :

0x06 0x91 0x21 0x43 0x65
(destination address +123456)

(TP-PID):

0x00 (Protocol Identifier)

(TP-DCS):

0x00 (Data Coding Scheme : 7 bits alphabet)

(TP-UDL): 0x04 (User Data Length, 4 characters of text)
TP-UD :

0xC9 0xE9 0x34 0x0B (User Data : ISSY)

TPDU in hexadecimal format must be converted into two ASCII
characters, e.g. octet with hexadecimal value 0x2A is presented to the mobile
as two characters ‘2’ (ASCII 50) and ‘A’ (ASCII 65).

9.5. Save Settings

+CSAS

All settings specified in command +CSCA and +CSMP are stored in
EEPROM if the SIM card is a phase 1 card or in the SIM card if it is phase 2.
Application to GSM
GSM to application

AT+CSAS
OK

9.6. Restore settings

Store +CSCA and +CSMP parameters
Parameters are saved

+CRES

All settings specified in command +CSCA and +CSMP are restored from
EEPROM if the SIM card is phase 1 or from the SIM card if it is a phase 2
SIM card.
Application to GSM
GSM to application

AT+CRES
OK

Restore +CSCA and +CSMP parameters
Parameters are restored

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AT commands interface

9.7. Show text mode parameters

+CSDH

This commands gives more informations in text mode result codes.
These informations are in brackets in commands +CMTI, +CMT, +CDS,
+CMGR, +CMGL.
Application to GSM
GSM to application

AT+CSDH?
+CSDH: 0
OK

current value
do not show header values

9.8. New message indication

+CNMI

This command selects the procedure how receiving the message from
the network.The application must send the following command :
Command syntax :

AT+CNMI=,,,,

: controls the processing of unsolicited result codes
Only =2 is supported.
Any other value for (0,1 or 3) is accepted (return code will be
OK), but the processing of unsollicited result codes will be the same than for
=2.
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.
Discard indication and reject new received message unsolicited result
codes when TA-TE link is reserved. Otherwise forward them directly to
the TE.
Buffer unsolicited result codes in the TA when TA-TE link is reserved
and flush them to the TE after reservation. Otherwise forward them
directly to the TE
Forward unsolicited result codes directly to the TE. TA-TE link specific
inband used to embed result codes and data when TA is in on-line data
mode.

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AT commands interface

: sets the result code indication routing for SMS-DELIVERs. Default
is 0.
0
1
2

No SMS-DELIVER indications are routed.
SMS-DELIVERs are routed using unsolicited code :
+CMTI : « SM »,
SMS-DELIVERs (except class 2 messages) are routed using unsollicited
code :
+CMT : [,] (PDU mode)
or
+CMT : ,[,] [,, , , , ,
, ] (text mode)
Class 3 SMS-DELIVERS are routed directly using code in =2 ;
Message of other classes result in indication =1

: set the rules for storing received CBMs (Cell Broadcast Message)
types depend on its coding scheme, the setting of Select CBM Types
(+CSCB command) and . Default is 0.
0
1

No CBM indications are routed to the TE. The CBMs are stored.
The CBM is stored and an indication of the memory location is routed to
the customer application using unsolicited result code:
+CBMI: “BM”,
New CBMs are routed directly to the TE using unsolicited result code.
+CBM :
(PDU mode)
or
+CBM :,, ,, (Text mode)

Class 3 CBMs : as =2.
Other classes CBMs : as =1.

for SMS-STATUS-REPORTs. Default is 0.
0
1

No SMS-STATUS-REPORTs are routed.
SMS-STATUS-REPORTs are routed using unsolicited code :
+CDS : (PDU mode)
or
+CDS : ,, [] , [], ,
, (Text mode)

Default is 0.

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AT commands interface

TA buffer of unsolicited result codes defined within this command is
flushed to the TE when 1...3 is entered (OK response shall be
given before flushing the codes)
TA buffer of unsolicited result codes defined within this command is
cleared when 1...3 is entered.

Application to GSM
GSM to application
GSM to application
Application to GSM
GSM to application
GSM to application

Application to GSM
GSM to application
Application to GSM
GSM to application
GSM to application

AT+CNMI=2,1,0,0,0
OK
+CMTI : "SM", 1
AT+CNMI=2,2,0,0,0
OK
+CMT :"123456","98/10/01,12 :30 :00+00",
129, 4, 32, 240, "15379", 129,5
Received Message
AT+CNMI=2,0,0,1,0
OK
AT+CMGS="+33146290800"
Message to send
+CMGS : 7
OK
+CDS : 2, 116, "+33146290800",145,
"98/10/01,12 :30 :07+04",
"98/10/01 12 :30 :08+04", 0

=1
Message received
=2
Message received

=1
Send a message in
text mode
Successful
transmission
Message
was
delivered correctly

9.9. Read message +CMGR
This command allows the application to read stored messages.
Command syntax :

AT+CMGR=

Response syntax for text mode:
+CMGR :,,[,] [,,,
,,,,]
(for SMS-DELIVER only)
+CMGR :,,[,] [,,,,, [],
, ,]
(for SMS-SUBMIT only)

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AT commands interface

Response syntax for PDU mode:
+CMGR: , [] ,

A message read with status "REC UNREAD" will be updated in memory
with the status "REC READ" because it has been read.
Example :
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application

Application to GSM
GSM to application
Application to GSM
GSM to application

+CMTI: "SM",1
AT+CMGR=1
+CMGR: "REC UNREAD",
"0146290800","98/10/01,18 :22 :11+0
0" ,
ABCdefGHI
OK
AT+CMGR=1
+CMGR: "REC READ",
"0146290800","98/10/01,18 :22 :11+0
0",
ABCdefGHI
OK
AT+CMGR=2
+CMS ERROR: 321
AT+CMGF=0 ;+CMGR=1
+CMGR: 2,,

9.10. List message

New message received
read the message

read again the message
message is read now,

Read a bad index
error : invalid index
in PDU mode
Message is stored
unsent,
no field

but

+CMGL

This command allows the application to read stored messages, by
indicating the type of the message to read.
Command syntax :

AT+CMGL=

Response syntax for text mode:
+CMGL : ,,[,], [, ,
] (for SMS-DELIVER and SMS-SUBMIT,
may be followed by other +CMGL:…)

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

AT commands interface

Response syntax for PDU mode:
+CMGL : ,, [],
(for SMS-DELIVER and SMS-SUBMIT,
may be followed by other +CMGL:…)

possible values (status of message in memory) :
PDU mode

Text mode

"REC UNREAD" ( received unread message )

"REC READ" ( received read message )

"STO UNSENT" ( stored unsent message )

"STO SENT" ( stored sent message )

"ALL" ( all messages )

Application to GSM

AT+CMGL=”REC UNREAD”

GSM to application

+CMGL: 1, "REC UNREAD",
"0146290800",
Unread Message!
+CMGL: 3, "REC UNREAD",
"46290800",
Another Unread Message!
OK
AT+CMGL=”REC READ”

Application to GSM
GSM to application

Application to GSM

+CMGL: 2, "REC READ",
"0146290800",
Keep cool
OK
AT+CMGL="STO SENT"

GSM to application

+CMS ERROR: 322

List unread messages in
text mode
2 messages are unread,
these messages will then
have their status changed
to “REC READ”.
(+CSDH: 0)

List read messages in text
mode

read stored and
messages
No message found

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sent

AT commands interface

9.11. Send message +CMGS
Command syntax in text mode :
AT+CMGS= [ , ]
text is entered

Command syntax in PDU mode :
AT+CMGS=
PDU is entered

The field is the address of the terminal network to whom the
message is sent. To send the message, simply type character
(ASCII 26). The text can contain all existing character except and
(ASCII 27).
This command is abortable using the character when entering
text.
In PDU mode, only hexadecimal characters are used (‘0’...’9’,’A’...’F’).
Example of use :
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CMGS="+33146290800"
Please Call me soon, Fred.
+CMGS :
OK
AT+CMGS=

+CMGS :
OK

Send a message in text
mode
Successful transmission
Send a message in PDU
mode
Successful transmission

The message reference which is returned back to the application is
allocated by the GSM module. This number begins with 0 and is incremented
by one for each outgoing message (successful and failure case) ; it is cyclic
on one byte (0 follows 255).

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AT commands interface

Note : this number is not a storage number - outgoing messages are not
stored.

9.12. Write Message to Memory +CMGW
This command stores a message to memory storage (either SMSSUBMIT or SMS-DELIVERS). The memory location is returned (no
choice possible as with phonebooks +CPBW).
The entering of text or PDU is done similarly as specified in command
Send Message +CMGS.

Command syntax in text mode :
cases)

(

returned

both

AT+CMGW= [, [, ] ]
enter text
Command syntax in PDU mode :
AT+CMGW= [,]
give PDU

Response syntax:

+CMGW:
or +CMS ERROR: if writing fails

Parameter Definition :
: Originating or Destination Adress Value in string format.
: Type of Originating / Destination Adress.

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AT commands interface

: Integer type in PDU mode (default 2 for +CMGW), or string type
in text mode (default "STO UNSENT" for +CMGW). It indicates the status of
message in memory. If is omitted , the stored message is considered
like a message to be send.

Defined values :
PDU mode
0
1
2
3

Text mode
"REC UNREAD"
"REC READ"
"STO UNSENT"
"STO SENT"

: The length of the actual data unit in octets
Example:
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CMGW="+33146290800"
Hello, how are you ?
+CMGW : 4
OK
AT+CMGW=

+CMGW :
OK

9.13. Send Message From Storage

Write a message in text
mode
Message stored in index 4
Write a message in PDU
mode
Message stored in

+CMSS

This command sends message with location value from storage
to the network.
Command syntax:

AT+CMSS=[, [,] ]

Response syntax:

+CMSS :
or +CMS ERROR: if sending fails

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AT commands interface

If new recipient address is given, it will be used instead of the one
stored with the message.
Example of use in Text Mode:
Application to GSM

AT+CMGW=0660123456
Today is my birthday
+CMGW : 5
OK
AT+CMSS=5
+CMSS :
OK
AT+CMSS=5, 0680654321

GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

Write a message in text
mode
Message stored in index 5
Send the message 5
Successful Transmission
Send the message 5 to a
different GSM
Successful Transmission

+CMSS :
OK

9.14. Set Text Mode Parameters +CSMP
This command shall be used to select value for the , , the
. The application must send the following command :
Command syntax :

AT+CSMP=, , ,

byte is composed of 6 differents fields :
b7
RP

UDHI SRR

b3
VPF

b0
MTI

RP : Reply Path, not used in text mode.
UDHI : User Data Header Information, b6=1 if the beginning of the User
Data field contains a Header in addition to the short message. This option is
not supported in +CSMP command, but can be used in PDU mode (+CMGS).

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AT commands interface

SRR : Status Report Request, b5=1 if a status report is requested. This
mode is supported.
VPF : Validity Period Format
b4=0 & b3=0 -> field is not present
b4=1 & b3=0 -> field is present in relative format
Others formats (absolute & enhanced) are not supported.
RD : Reject Duplicates, b2=1 to instruct the SC to reject an SMSSUBMIT for an SM still held in the SC which has the same and the
same as the previously submitted SM from the same .
MTI : Message Type Indicator
b1=0 & b0=0 -> SMS-DELIVER (in the direction SC to MS)
b1=0 & b0=1 -> SMS-SUBMIT (in the direction MS to SC)
In text mode is only coded in "relative" format. The default value is
167 (24 hours). This means that one octet can describe different values :
VP value
0 to 143
144 to 167
168 to 196
197 to 255

Validity period value
(VP + 1) x 5 minutes
(up to 12 hours)
12 hours + ( (VP - 143) x 30 minutes )
(VP - 166) x 1 day
(VP - 192) x 1 week

is used to indicate the higher layer protocol being used or
indicates interworking with a certain type of telematic device. For example,
0x22 is for group 3 telefax, 0x24 is for voice telephone, 0x25 is for ERMES.
is used to determine the way the information is encoded. UCS2
alphabet and compressed text are not supported. Only GSM default alphabet
and 8 bit data are supported.

Application to GSM
GSM to application

AT+CSMP?
+CSMP: 0,0,0,0
OK

current values
no validity period
= PCCP437 alphabet (8 bits -> 7

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AT commands interface

Application to GSM
GSM to application

bits )
AT+CSMP=17,23,64,244 = 23 (2 hours, relative format)
= GSM 8 bits alphabet
OK
command correct

9.15. Delete message +CMGD
This command shall be used after a read-command in order to delete the
any stored message.
For example :
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application

+CMTI: "SM",3
AT+CMGR=3
+CMGR: "REC UNREAD",
"0146290800",,"98/10/01,18 :19 :20+0
0"
Received Message!
OK
AT+CMGD=3
OK

9.16. Service center address

New message received
Read it
Unread message
received from 0146290800
on the 01/10/1998 at 18H
19m 20s
Delete it
Message deleted

+CSCA

This command shall be used to indicate to which service center the
message has to be sent.
The GSM module has no default value for this address. If the application
tries to send a message without having indicated the service center address,
an error will be generated.
So, the application has to indicate this address at initialization. This
address is then valid all the time. The application may change it if needed.

Application to GSM
GSM to Application
Application to GSM
GSM to application
Application to GSM

AT+CMGS="+33146290800"
Hello, how are you ?
+CMS ERROR : 330
AT+CSCA="0696741234"
OK
AT+CMGS="+33146290800"

Send a message
Service center unknown
Service center initialization
Send

again

the

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same

AT commands interface

GSM to application :

Happy Birthday !
+CMGS : 1
OK

message
Successful transmission

9.17. Select Cell Broadcast Message Types +CSCB
Command syntax:

AT+CSCB= , [ , [ ] ]

Set command selects which types of CBMs are to be received by the
ME, This command is allowed in both PDU and text modes.
The parameter of +CNMI command controls the message
indication.
Test read command (AT+CSCB ?) is not supported.
The activation of CBM reception (=0) can select only specific
Message Identifiers (list in ) for specific Languages (list in ), but
the deactivation stops any reception of CBMs (only AT+CSCB=1 is allowed)
Message Identifiers ( parameter) indicates which type of
message identifiers the ME should listen to.
Supported languages ( parameter) are : 0 for German, 1 for
English, 2 for Italian, 3 for French, 4 for Spanish, 5 for Dutch, 6 for Swedish,
7 for Danish, 8 for Portugese, 9 for Finnish, 10 for Norwegian, 11 for Greek,
12 for Turkish, 13 for Hungarian, 14 for Polish and 32 for Czech.
Application to GSM

AT+CSCB=0,"15-17,50,86", ""

GSM to Application
Application to GSM

OK
+CBM : 10
00112233445566778899

GSM to application
Application to GSM

AT+CSCB=1
OK

Accept SMS-CB types 15,16,17,50
and 86 in any language
CBMs can be received
CBM length of a received Cell
Broadcast message (SMS-CB),
CBM bytes in PDU mode
Deactivate the reception of CBMs
CBM reception is completely
stopped

9.18. Cell Broadcast Message Identifiers
Command syntax :

+WCBM

AT+WCBM= [, , ]

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AT commands interface

This specific command is used to read the SIM file EF-CBMI.
This file is not used with +CSCB command, the application should read
this file (AT+WCBM ?) and combine the Message Identifiers with those
required for the application.
Application to GSM
GSM to Application
Application to GSM
GSM to application

AT+WCBM="10,100,1000,100
00"
OK
AT+WCBM ?
+WCBM="10,100,1000,10000"

9.19. Message status modification
Command syntax :

Write 4 message identifiers in EFCBMI
CBMIs are stored if EF-CBMI
Read the CBMIs in EF-CBMI
4 CBMIs are stored if EF-CBMI

+WMSC

AT+WMSC= ,

location number of the stored message (integer)

new status to be stored, as for +CMGL command

Possible responses:
OK

if the location is valid

+CMS ERROR: 321 if is invalid or free
+CMS ERROR: 302 if the new and the previous one are
incompatible (1)
Note 1 : The accepted status changes are from READ to NOT READ
and vice versa, and from SENT to NOT SENT and vice versa.
If all the parameters are correct, the module overwrites the whole SMS in
the SIM. Only the first byte (Status byte) is changed.

9.20. Message overwriting

+WMGO

The +CMGW writes a SMS to the first free location. To write a SMS to a
specified location, the +WMGO specific command forces the module to write
a SMS (with +CMGW command) to the location specified with +WMGO, but
just for one +CMGW command.

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AT commands interface

Command syntax :

AT+WMGO=

location number of the SIM record to write or overwrite

Possible responses:
OK

if is a valid SMS location, for AT+WMGO=? and
for AT+WMGO?

+CMS ERROR: 321 if is out of the SIM capacity range.
+WMGO:

for AT+WMGO?

Then on the next AT+CMGW commnand, the used record number will
be that one specifed by AT+WMGO command. The location is then forgotten,
and to make a second overwrting, the +WMGO shall be used again.
If the external application specifies a free location, and if an incoming
message is received before the AT+CMGW command, the module may store
the incoming message in a free location, which could be unfortunately the
one specified by +WMGO (the module does not prevent this case). Then if
the user issues a AT+CMGW command, without changing the AT+WMGO
location, the new message will be overwritten !
Be aware that this location number is not kept over a software reset.

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AT commands interface

10. Supplementary Services commands

10.1. Call forwarding +CCFC
This commands allows control of the call forwarding supplementary
service.
Command syntax:
AT+CCFC= , [,
[, [, [, ] ] ] ] ] ]

Response syntax:
+CCFC: ,
[, ] ] ]

[ +CCFC: ,
[,, [, ] ] ]

[,,

[…]]

* :
0
1
2
3
4
5

Unconditional
Mobile busy
No reply ( is used)
Not reachable
All call forwarding
All conditionnal call forwarding

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AT commands interface

* :
0
1
2
3
4

Disable
Enable
Interrogate
Registration
Erasure

* :
1
2
4
8
7

Voice
Data
Fax
Short Messages
All classes

The combination of different classes in not supported, it will only result in
the activation / deactivation / status request of all classes (7).

* , : not managed
* : For Call Forwarding on No Reply, time to wait (1 to 30) in
seconds before call is forwarded, default value is 20 seconds.

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CCFC=0,3, "0146290800"
OK
AT+CCFC=0,2
+CCFC:1,1, "0146290800" ,129
+CCFC:1,2, "014629
0802",129
+CCFC:1,4, "014629
0804" ,129
OK
Application to GSM AT+CCFC=0,4
GSM to application OK

register call forwarding unconditional
Command valid
Interrogate call forwarding unconditional
call forwarding active for voice
call forwarding active for data
call forwarding active for fax

erase call forwarding unconditional
Command valid

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AT commands interface

The +CCFC responses are not sorted depending of the
parameter, it only depends of the order of the network response.

10.2. Call barring

+CLCK

This commands allows control of the call barring supplementary service.
Locking, unlocking or querying the status of a call barring is possible for
all or a specific class.

Command Syntax:
AT+CLCK= , [, [, ] ]

Response Syntax:

(for =2 and command successful)

+CLCK: [,
[ +CLCK: ,
[…]]

* :
"AO", "OI", "OX"

for outgoing calls barring

"AI", "IR"

for incoming calls barring

"AG", "AC", "AB"

for all calls barring (=0 only)

*
0
1
2

unlocks the facility
locks the facility
query status

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AT commands interface

* : see description for +CLCK command (Call Barring)
The combination of different classes in not supported, it will only result in
the activation / deactivation / status request of all classes (7).
Password code must be on 4 digits maximum.
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CLCK="AO",1,1234
OK
AT+CLCK="AO",0,5555
+CME ERROR: 16
AT+CLCK="AO",0,1234
OK

Command valid
Wrong password
Command valid

10.3. Modify SS password +CPWD
This command shall be used by the application to change the
supplementary service password. The command to manage this functionality
is :
Command Syntax:
AT+CPWD=,,
for see +CLCK command with only “P2” facility added (SIM PIN2).
Application to GSM

AT+CPWD="AO",1234,5555

GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

OK
AT+CPWD="AO",1234,5555
+CME ERROR: 16
AT+CPWD="AO",5555,1234
OK

change Call Barring
password
password changed
Change password
wrong password
change password
password changed

Whatever the facility, the change of password is performed for all calls barring.

10.4. Call waiting

+CCWA

This command allows control of the call waiting supplementary service.

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AT commands interface

The module will send an unsolicited result code +CCWA when call
waiting service is enabled.

Command Syntax:

AT+CCWA=, [ [, ] ]

Response Syntax:

(for =2 and command successful)

+CCWA: [,
[ +CCWA: ,
[…]]

Unsolicited result:

+CCWA: , , [ ,]
(when waiting service is enabled)

* : result code presentation status in the TA
0
1

Disable
Enable

* :
0
1
2

Disable
Enable
Query status

1
2
4
8
7

Voice
Data
Fax
Short Messages
All classes

* :

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AT commands interface

The combination of different classes is not supported, it will only result
in the activation / deactivation / status request of all classes (7).
* : optionnal string type alphanumeric representation of
corresponding to the entry found in the ADN or FDN phonebook.

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
Application to GSM
GSM to application
Application to GSM

AT+CCWA=1,1,1
OK
AT+CCWA=1,2
+CCWA:1,1
OK
+CCWA:"0146290800",145,1,
”FREDDY”
AT+CCWA=1,0,7
OK
+CCWA: ,,1

Enable call waiting for speech
Command valid
Interrogate call waiting
Call waiting active for speech calls
Number and name of the waiting
voice call
erase call waiting for all classes
command valid
Waiting voice call without number

10.5. Calling line identification restriction +CLIR
This command allows control of the calling line identification restriction
supplementary service.
Command syntax:

AT+CLIR=

Response syntax:

+CLIR:,

(for AT+CLIR?)

• : parameter sets the adjustment for outgoing calls
0
1
2

Presentation indicator is used according to the
subscription of the CLIR service
CLIR invocation
CLIR suppression

* : parameter shows the subscriber CLIR status in the network
0
1

CLIR not provisioned
CLIR provisioned in permanent mode

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AT commands interface

2
3
4

Unknown (no network...)
CLIR temporary mode presentation restricted
CLIR temporary mode presentation allowed

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CLIR=2
OK
AT+CLIR?
+CLIR: ,
OK

command valid
Ask for current functionality
and defined as above

10.6. Calling line identification presentation

+CLIP

This command allows control of the calling line identification presentation
supplementary service. When the presentation of the CLI (Calling Line
Identification) is enabled (and calling subcriber allows), +CLIP response is
returned after every RING (or +CRING) result code.
Command syntax:
AT+CLIP=
Response syntax:
+CLIP: ,

for AT+CLIP?

+CLIP: , [ ,, , ]
for an incoming call, after each RING or +CRING indication

* : parameter sets/shows the result code presentation in the TA
0
1

Disable
Enable

• : parameter shows the subscriber CLIP service status in the
network
0
1

CLIP not provisioned
CLIP provisioned

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AT commands interface

Application to GSM
GSM to application
Application to GSM
GSM to application
GSM to application

Application to GSM
GSM to application

Unknown (no network...)

AT+CLIP=1
OK
AT+CLIP?
+CLIP: ,
OK
RING
+CLIP:
"0146290800",129,1,,,
“FRED”
AT+CLIP=0
OK

Enable CLIP
CLIP is enabled
Ask for current functionality
and defined as above
Incoming call
Incoming call with number and
name presentation
Disable CLIP presentation
Command valid

10.7. Connected line identification presentation

+COLP

This command allows control of the connected line identification
presentation supplementary service, useful in case of call forwarding of the
connected line.
Command syntax:
AT+COLP=
Response syntax:
+COLP: ,

for AT+COLP?

+COLP: , [ ,, , ]
after ATD command, before OK or CONNECT

: parameter sets/shows the result code presentation status in the TA
0
1

Disable
Enable

: parameter shows the subscriber COLP service status in the
network

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AT commands interface

0
1
2

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application

COLP not provisioned
COLP provisioned
Unknown (no network...)

AT+COLP=1
OK
AT+COLP?
+COLP: 1,1
OK
ATD146290800;
+COLP:
"0146290928",129,,,”JOE”
OK
AT+COLP=0
OK

Activate COLP
Command valid
Ask for current functionality
COLP is enabled and provisioned
Outgoing call
Connected outgoing line number and
name presentation
desactivate COLP
command valid

10.8. Advice of charge +CAOC
Command syntax:

AT+CAOC=

This refers to Advice of Charge supplementary service (GSM 02.24 []
and GSM 02.86 []) that enables subscriber to get information about the cost
of calls. With =0, the execute command returns the current call meter
value (CCM) from the ME.
If AOC is supported, the command also includes the possibility to enable
an unsolicited event reporting of the CCM information.
The unsolicited result code +CCCM: is sent when the CCM value
changes. Deactivation of the unsolicited event reporting is made with the
same command.
If AOC is supported, the Read command indicates whether the
unsolicited reporting is activated or not.
Defined values
:
0 query CCM value
1 deactivate the unsolicited reporting of CCM value

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AT commands interface

2 activate the unsolicited reporting of CCM value

:
string type; three bytes of the current call meter value in hexadecimal
format
(e.g. "00001E" indicates decimal value 30); value is in home units and
bytes are similarly coded as ACMmax value in the SIM
Application to GSM
GSM to application
Application to GSM

AT+CAOC=0
+CAOC : "000A08"
OK
AT+CAOC=1

GSM to application
Application to GSM

OK
AT+CAOC=2

GSM to application
Application to GSM
GSM to application

OK
AT+CAOC ?
+CAOC :
OK
AT+CAOC= ?
+CAOC : (0-2)
OK

Application to GSM
GSM to application

Query CCM value
Display Current Call Meter
value (CCM = 2568)
Deactivate
unsolicited
report of CCM value
CCM report deactivated
Activate unsolicited report
of CCM value
CCM report activated
Request mode
Display unsolicited report
mode (1 or 2)
Request supported modes
0,1,2 modes supported

10.9. Accumulated call meter +CACM
Set command resets the Advice of Charge related accumulated call
meter value in SIM file EFACM. ACM contains the total number of home units
for both the current and preceding calls. SIM PIN2 is required to reset the
value. If setting fails in an ME error, +CME ERROR: is returned.
Read command returns the current value of ACM.
Then ACM value (entered or displayed) is in hexadecimal format with 6
digits.
Application to GSM
GSM to application

AT+CACM ?
+CACM : "000400"

Request ACM value
Display ACM value

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AT commands interface

Application to GSM

OK
AT+CACM= 1234

GSM to application
Application to GSM

OK
AT+CACM= 0000

GSM to application
Application to GSM
GSM to application

+CME ERROR : 17
AT+CACM ?
+CACM : "000000"
OK

(ACM = 1024)
Request ACM reset, real
PIN2 is "1234"
ACM value is reset
Request ACM reset with
wrong PIN2 value
SIM PIN2 required
Request ACM value
Display ACM value
(ACM = 0)

10.10.Accumulated call meter maximum +CAMM
Set command sets the Advice of Charge related accumulated call meter
maximum value in SIM file EFACMmax. ACMmax contains the maximum number
of home units allowed to be consumed by the subscriber. When ACM (refer
+CACM) reaches ACMmax, then calls are prohibited. SIM PIN2 is required to
set the value. If setting fails in an ME error, +CME ERROR: is
returned.
Read command returns the current value of ACMmax.
Them ACMmax value (entered or displayed) is in hexadecimal format
with 6 digits.
Application to GSM

AT+CAMM= "000400", 1234

GSM to application
Application to GSM

OK
AT+CAMM= "000400",0000

GSM to application
Application to GSM
GSM to application

+CME ERROR : 17
AT+CAMM ?
+CAMM : "000400"
OK

Request ACMmax update,
real PIN2 is "1234"
ACMmax updated to 1024
Request ACMmax update,
real PIN2 is "1234"
SIM PIN2 required
Request ACMmax value
ACMmax=1024

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AT commands interface

10.11. Price per unit and currency table +CPUC
Description
Set command sets the parameters of Advice of Charge related price per
unit and currency table in SIM file EFPUCT. PUCT information can be used to
convert the home units (as used in +CAOC, +CACM and +CAMM) into currency
units. SIM PIN2 is required to set the parameters. If setting fails in an ME
error, +CME ERROR: is returned.
Application to GSM

AT+CPUC= "FFR", "0.82", 1234

GSM to application
Application to GSM

OK
AT+CPUC= "FFR", "0.82", 1111

GSM to application
Application to GSM
GSM to application

+CME ERROR : 17
AT+CPUC?
+CPUC: "FFR", "0.82"
OK

Request Currency
Price per unit update

and

Request Currency and
PPU update (wrong PIN2)
SIM PIN2 required
Request Currency & Price
Currency= "FFR"
Price per unit= "0.82"

10.12. Call related supplementary services +CHLD
This command is used to manage call hold and multiparty conversation
(conference call).
Calls can be put on hold, recovered, released or added to conversation.

Command syntax:

AT+CHLD= < n >

Response syntax:

+CHLD: (0-3, 11-17, 21-27) for AT+CHLD=?

Release all held calls or set User Determined User Busy

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AT commands interface

(UDUB) for a waiting call.
1

Release all active calls (if any exist) and accepts the other
(held or waiting) call.

1X
2

Release a specific call X (active, held or waiting)
Place all active calls (if any exist) on hold and accepts the
other
(held or waiting) call.

Place all active calls on hold except call X with
which communication is supported.

Adds a held call to the conversation

10.13. List current calls +CLCC
This command is used to return the list of current calls.

Command syntax:
AT+CLCC
Response syntax:
OK

if no calls are available

+CLCC: , , , ,
[ ,, [ ] ]
[ +CLCC: , , , ,
[ ,, [ ] ]
[. . . ] ] ]

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AT commands interface

integer type, call identification as described in GSM 02.30

:
0
1

mobile originated (MO) call
mobile terminated (MT) call

(state of the call):
0
active
1
held
2
dialing (MO call)
3
alerting (MO call)
4
incoming (MT call)
5
waiting (MT call)

(teleservice):
0
voice
1
data
2
fax
9
unknown

:
0
call is not one of multiparty (conference) call parties
1
call is one of multiparty (conference) call parties

: string type phone number in format specified by
: type of address octet in integer format
: optional string type alphanumeric representation of
corresponding to the entry found in phonebook.

10.14. Supplementary service notifications +CSSN
Command syntax:

AT+CSSN= ,

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AT commands interface

This command refers to supplementary service related network initiated
notifications.
When =1 and a supplementary service notification is received after a
mobile originated call setup, intermediate result code +CSSI: is sent
before any other MO call setup result codes.
When =1 and a supplementary service notification is received during
a call, unsolicited result code +CSSU: is sent.

Command syntax:
AT+CSSN= ,
Response syntax:
+CSSN: ,

for AT+CSSN?

+CSSN: (0-1), (0-1) for AT+CSSN=?
Defined values
(parameter sets/shows the +CSSI result code presentation status):
0
disable
1
enable

(parameter sets/shows the +CSSU result code presentation status):
0
disable
1
enable

5
outgoing calls are barred
6
incoming calls are barred
7
CLIR suppresssion rejected

2
3
4
5

call has been put on hold (during a voice call)
call has been retrieved (during a voice call)
multiparty call entered (during a voice call)
call on hold has been released (during a voice call)

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AT commands interface

10.15. Unstructured supplementary service data +CUSD
The USSD supplementary service is described by the GSM 02.90.
It is based on digit sequences which may be entered by mobile user with
an handset. An entered sequence is sent to the network which answers back
with a alphanumerical string, only for display, or to display and to ask for a
next sequence.
This command is used for :
- enabling or disabling the CUSD indication sent to the
application by the module when a incomming USSD is
received
- send and receive USSD strings.
For the first behavior, the syntax is :

Command syntax:
AT+CUSD = [ , [ ] ]

0 : Disable the result code presentation
1 : Enable the result code presentation
2 : Cancel session (not applicable to read command response)

In case of presentation enabled, a +CUSD (as direct answer to a send
USSD) is then indicated with :
+CUSD: [,, ]
-

:
0

no further user action required (network initiated
USSD-Notify, or no further information needed after mobile
initiated operation)
further user action required (network initiated
USSD-Request, or further information needed after mobile
initiated operation)

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AT commands interface

2
4

USSD terminated by network
Operation not supported

is network string, converted in the selected character set
(HEX mode is not supported).

- is the data coding sheme received (GSM TS 03.38).

To send and receive USSD
Command syntax:

AT+CUSD= [, [,]]

Note : Please, be aware that the send command asks the user to reenter the enable/disable () parameter !
is the USSD string to be sent.
: only the default alphabet value is supported (which is the
default value when the parameter is absent).
When the module sends an USSD, an OK response is first returned. The
intermediate +CUSD indication comes after. In case of error, a +CUSD: 4
indication is returned back.

10.16.Closed user group +CCUG
The Closed User Group Supplementary Service enables subscribers to
form closed user groups to and from which access is restricted.
The CUG supplementary service is described by the GSM 02.85. This
service shall be provided after prior arrangement with the service provider. At
provision subscription options should be selected.
+CCUG command is used for :
-

activating/deactivating the control of the CUG information for all
following outgoing calls.

selecting a CUG index,

suppressing the outgoing access (OA). The OA allows a member of
a CUG to place calls outside the CUG.

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AT commands interface

suppressing the preferential CUG. The preferential is the default
CUG used by the network when it does not receive explicit CUG
index.

Command syntax:
AT+CCUG = [ , [ ] ]

0 : Disable CUG mode (default)
1 : Enable CUG mode

0-9: CUG index (0 default),
10: preferred CUG

0: no information (default)
1: suppress OA
2: suppress preferential CUG
3: suppress OA and preferential CUG

For activating the control of the CUG information by call, add [G] or [g] to
the ATD command. Index and info values will be used.

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AT commands interface

11. Data commands

11.1. Bearer type selection +CBST
Command syntax:

AT+CBST= , ,

No data compression is provided and only asynchronous modem is
supported ( = 0).

0 (default)
1
2
3
4
5
6
7
8
65
66
68
70
71

Description
Autobauding
300 bps
1200 bps
1200/75 bps
2400 bps
2400 bps
4800 bps
9600 bps
Specific
300 bps
1200 bps
2400 bps
4800 bps
9600 bps

0
1(default)
2
3

Application to GSM
GSM to application
Application to GSM

Modem type
None
V.21
V.22
V.23
V.22bis
V.26ter
V.32
V.32
V.110
V.110
V.110
V.110
V.110

Connection element
Transparent only
Non transparent only
Transparent preferred
Non transparent preferred

AT+CBST=7,0,1
OK
AT+CBST=81,0,0

ask for a bearer
bearer supported
ask for a bearer

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AT commands interface

GSM to application

+CME ERROR : 3

bearer not supported

This command applies to both outgoing and incoming data calls but in
a different way. For outgoing call the two parameters (e.g. and
) apply, whereas for incoming call only the parameter applies.
Note 1) as far as incoming calls are concerned, if is set to T only
and the network proposes NT only or vice versa then the call is released.
Note 2) older values 100 and 101 for are retained for compatibility
purpose but shallnot be used anymore, values 2 and 3 shall be used instead.

11.2. Select mode

+FCLASS

This command puts the module into a particular mode of operation (data
or fax).
Command syntax:

0
1

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+FCLASS=?
+FCLASS: (0,1)
OK
AT+FCLASS=0
OK
AT+FCLASS=1
OK
AT+FCLASS?
+FCLASS: 1
OK

AT+FCLASS=
Description
Data
Fax class 1

Test command
Done
Data mode asked
Command valid
Fax class 1 mode asked
Command valid
Current value
Command valid

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AT commands interface

11.3. Service reporting control +CR
This command enables a more detailed service reporting, in case of data
incoming or outgoing call. Before sending the CONNECT response to the
application, the GSM module will precise the type of data connection that
have been established.
These report types are :
+CR: ASYNC

For asynchronous transparent

+CR: REL ASYNC For asynchronous non-transparent

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CR=0
OK
AT+CR=1
OK

Extended reports disabled
Command valid
Extended reports enabled
Command valid

11.4. Cellular result codes +CRC
This command enables a more detailed ring indication, in case of
incoming call (voice or data). Instead of the string "RING", an extended
string is used to indicate which type of call is ringing (e.g. +CRING: VOICE).
These extended indications are :
+CRING: ASYNC

for asynchronous transparent

+CRING: REL ASYNC for asynchronous non-transparent

Application to GSM
GSM to application
Application to GSM
GSM to application

+CRING: VOICE

for normal speech.

+CRING : FAX

for fax calls

AT+CRC=0
OK
AT+CRC=1
OK

Extended reports disabled
Command valid
Extended reports enabled
Command valid

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AT commands interface

11.5. DTE-DCE local rate reporting + ILRR
This parameter controls whether or not the extended-format
"+ILRR:" information text is transmitted from the DCE to the DTE. The
reported shall represent the current (negotiated or renegotiated) DTEDCE rate.
If enabled, the intermediate result code is transmitted in a data incoming
or outgoing call, after any data compression report, and before any final
result code (CONNECT).
can take the following values: 300, 600, 1200, 2400, 4800, 9600,
19200, 38400, 57600, 115200.

Application to GSM
GSM to application
Application to GSM
GSM to application

AT+ILRR=0
OK
AT+ILRR=1
OK

Local port rate report disabled
Command valid
Local port rate report enabled
Command valid

11.6. Radio link protocol parameters +CRLP
This command allows to change the radio link protocol parameters used
for non transparent data transmission.
Command syntax:
AT+CRLP=,,,,
This command accepts 5 parameters.
: (0-61)

Down window size, (default is 61),

: (0-61)

Up window size, (default is 61),

: (40-255) Acknowledgement timer in units of 10ms, (default is
48),
: (1-255)

Retransmission attempts, (default is 6),

: (0)

Version number. Only 0 is supported.

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AT commands interface

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+CRLP=?
+CRLP: (0-61),(0-61),(40-255),(1,255),(0)
OK
AT+CRLP=61,61,48,6,0
OK
AT+CRLP?
AT+CRLP: 61,61,48,6,0
OK

11.7. Others radio link parameters

Test command
Done.
Set new parameters
Command valid
Current values
Command valid

+DOPT

This Wavecom specific command allows to change some supplementary
radio link protocol parameters
Command syntax:

0
1 (default)

AT+DOPT=,
Description
Data communication is hung up in case of bad
radio link.
Data communication goes on in case of bad radio
link (possible loose of data)

The second parameter is reserved for future use.
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+DOPT=?
(0,1),(0)
OK
AT+DOPT=1
OK
AT+DOPT?
1,0
OK

Test command

Set new parameters
Command valid
Current values
Command valid

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AT commands interface

12. Fax commands
The fax service provided by the module is class 1 compatible. However
only the core commands defined by ITU T.31 are supported. It means that
commands like AT+FAR, +FCC,... are not supported.
Autobauding has to be enabled to set up the module for fax.
All set commands below return an ERROR response code if they are
not issued during the communication.

12.1. Transmit speed +FTM
This command sets the fax transmit speed.
Command syntax:

24
48
72
96

Application to GSM
GSM to application

AT+FTM=

Description
2400 bps
4800 bps
7200 bps
9600 bps

Modem type
V.27ter
V.27ter
V.29
V.29

AT+FTM=?
(24,48,72,96)
OK

Test command
Done

12.2. Receive speed +FRM
This command sets the fax receive speed.
Command syntax:

AT+FRM=

The speeds are the same as these of +FTM command.
Application to GSM

AT+FRM=?

Test command

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AT commands interface

GSM to application

(24,48,72,96)
OK

Done

12.3. HDLC transmit speed +FTH
This command sets the fax transmit speed, using the HDLC protocol.
Command syntax:

AT+FTH=

can only take 3 value which corresponds to V.21 channels 300
bps.
Application to GSM
GSM to application

AT+FTH=?
(3)
OK

Test command

12.4. HDLC receive speed +FRH
This command sets the fax receive speed, using the HDLC protocol.
Command syntax:

AT+FRH=

can only take 3 value which corresponds to V.21 channels 300
bps.
Application to GSM
GSM to application

AT+FRH=?
(3)
OK

Test command

12.5. Stop transmission and wait +FTS
This command stops the transmission for the specified period.
Command syntax:

AT+FTS=

: silence period (units of 10 ms).
Application to GSM
GSM to application
Application to GSM

AT+FTS=?
(0-255)
OK
AT+FTS=50

Test command

Stops transmission and waits

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AT commands interface

GSM to application

0.5 s
Command valid

12.6. Receive silence +FRS
This command causes the modem to report back to the DTE after the
specified period.
It is aborted if any character is received.
Command syntax:

AT+FRS=

is in units of 10 ms.
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+FRS=?
(0-255)
OK
AT+FRS=50
OK

Test command

Waits for 0.5 s silence
Command valid

12.7. Setting up the PC fax application:
The recommended fax application is Delrina WinFax v8.0.
It should be configured as follows (menu Setup/Fax Modem Setup) :
♦ Port: any com
♦ Model: Generic Class 1 (hardware flow control). A generic class 1
with software flow control can be also selected.
♦ Init: default string is suitable for the module
♦ Reset: default string is suitable for the module
♦ Maximum Transmit Rate: 9600 baud (if higher then rate will be
automatically cut back to 9600 baud).
Others settings are of no relevance for the GSM unit: they can be
modified.

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AT commands interface

13. V24-V25 commands

13.1. Fixed DTE rate +IPR
This commands specifies the data rate at which the DCE will accept
commands.
Application to GSM
GSM to application
Application to GSM
GSM to application

Application to GSM
GSM to application

AT+IPR?
+IPR: 9600
OK
AT+IPR=?
+IPR:(0,2400, 4800, 9600, 19200) ,
(300,600,1200,38400,57600,115200)
OK
AT+IPR=38400
OK

current rate is 9600 bps

possible values (1)

disable autobauding and set
rate to 38400 bps

Application to GSM
AT+IPR=0
GSM to application
OK
enable autobauding
Note (1) : first set of values indicates the range of autodetectable
speeds. The second set of values indicates all the possible speeds which can
be used by DCE.
An autobauding is provided which operates from 2400 to 19200 baud.
However some constraints have to be dealt with :
•

any AT command issued by DTE must start with a capital ‘A’ and ‘T’
(or ‘\’). If not, DCE may send back some garbagge characters and get
de-synchronized. Shoud it happen, DTE shall just issue once or twice
‘AT\r’ (at 2400 or 4800 baud) or just ‘AT’ (at 9600 baud) to get the
modem re-synchronized.

• the DTE shall wait for 1ms after receipt of the last character of the AT
response (which is always ‘\n’ or 0x0A) to send a new AT command at
either the same rate or a new rate. Shoud this delay ignored, DCE
can get de-synchronised. Once again, sending once or twice ‘AT\r’ or
just ‘AT’ causes the DCE to recover.

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AT commands interface

Be careful : at start-up if autobauding is enabled and no AT command
has been received yet, the module sends all unsolicited responses (like
RING) at 9600 baud.

13.2. DTE-DCE character framing

+ICF

This command is used to determine the local serial port start-stop
(asynchronous) character framing that the DCE shall use.
Command syntax:

AT+ICF= ,

* :
0
1
2
3
4
5
6

Autodetect
8 Data 2 Stop
8 Data 1 Parity 1 Stop
8 Data 1 Stop
7 Data 2 Stop
7 Data 1 Parity 1 Stop
7 Data 1 Stop

not supported
supported
supported
supported
supported
supported
supported

* :
0
1
2
3
4

Odd
Even
Mark
Space
None

supported
supported
supported
supported
supported

Note 1) setting a character framing different from 8N1 will disable
autobauding (in the case it was activated). However setting it back to 8N1 will
not re-enable autobaud.
Note 2) setting the framing to 8N1 will let the autobauding enabled, if it
was already enabled (implying framing was already 8N1).

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AT commands interface

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+ICF?
+ICF: 3,4
OK
AT+ICF=?
+ICF: (1-6),(0-4)
OK
AT+ICF=0,0
OK

current values

possible values.

new values

13.3. DTE-DCE local flow control

+IFC

This command is used to control the operation of local flow control
between the DTE and DCE.
AT+IFC=,

* < DCE_by_DTE > :
0
1
2
3

none
Xon/Xoff local circuit 103
RTS
Xon/Xoff global on circuit 103

Supported
not supported
Supported
not supported

Important note : when this parameter is set to 2 (DTE invokes flow
control through RTS) the behavior of the DCE is the following :
If the DCE has never detected RTS in high (or ON) condition since
startup then it ignores RTS, assuming this signal is not connected.
As soon as DCE detects RTS high, then this signal acts upon it.
Therefore subsequent RTS transition to OFF will prevent DCE from sending
any further data in online and in offline as well.
This behavior allows the user to use the default settings (hardware flow
control) and let RTS disconnected. In the case RTS is connected and is high
at least once then it acts upon DCE.

* < DTE_by_DCE > :

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AT commands interface

0
1
2

none
Xon/Xoff circuit 104
CTS

Supported
not supported
Supported

When this parameter is set to 0 (none) then CTS is kept high all the time.
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+IFC?
+IFC: 2,2
OK
AT+IFC=?
+IFC: (0,2),(0,2)
OK
AT+IFC=0,0
OK

current values

possible values.

new values

13.4. Set DCD signal &C
This commands controls the Data Carrier Detect (DCD) signal.
Application to GSM
GSM to application
Application to GSM

AT&C0
OK
AT&C1

GSM to application

DCD always on
command valid
DCD matches state of the
remote modem's data carrier
command valid

13.5. Set DTR signal &D
This commands controls the Data Terminal Ready (DTR) signal.
Application to GSM
GSM to application
Application to GSM

AT&D0
OK
AT&D1

GSM to application
Application to GSM

OK
AT&D2

GSM to application

the DTR signal is ignored
command valid
Modem switches from data to command mode
when DTR switches from ON to OFF
command valid
Upon DTR switch from ON to OFF, the call is
cleardown
command valid

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AT commands interface

13.6. Set DSR signal &S
This commands controls the Data Set Ready (DSR) signal.
Application to GSM
GSM to application
Application to GSM

AT&S0
OK
AT&S1

GSM to application

DSR always on
command valid
DSR off in command mode, DSR on in data
mode
command valid

13.7. Back to online mode O
If you have established a connection and the mobile is in online
command mode, this command allows to return to online data mode.
Application to GSM
GSM to application

ATO
OK

Command valid

13.8. Result code suppression Q
Determines whether the mobile sends result codes or not
Application to GSM
GSM to application
Application to GSM
GSM to application

ATQ0
OK
ATQ1
(none)

DCE transmits result codes
Command valid
Result codes are suppressed and not transmitted
no response

13.9. DCE response format

Determines the DCE response format, with or without header characters
, and with the use of numeric result codes.

Information
responses
Result codes

Application to GSM

ATV0

DCE transmits limited headers and trailers and

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100

AT commands interface

GSM to application
Application to GSM

0
ATV1

GSM to application

numeric result codes
command is valid (0 means OK)
DCE transmits full headers and trailers and
verbose response text
command is valid

13.10.Default configuration Z
Restores the configuration profile. Any call is released.
Application to GSM
GSM to application

ATZ
OK

Command valid

13.11.Save configuration

This commands writes the active configuration to a non-volatile memory
(EEPROM). Description of the stored parameters is in appendice 16.10
Application to GSM
GSM to application

AT&W
OK

13.12.Auto-tests

Writes current configuration to EEPROM
command valid

AT&T0 is used to perform auto-tests. The response will be OK if no
software problem is detected (EEPROM, RAM and ROM checksums),
otherwise a simple ERROR response is sent.
AT&T1 is used to close the audio loop, and AT&T2 is used to open the
audio loop. This is used to validate the audio loop (microphone to speaker).
Application to GSM
GSM to application

AT&T0
OK

Application to GSM
GSM to application
Application to GSM
GSM to application

AT&T1
OK
AT&T2
OK

Perform software auto-tests
No software problem detected, all checksums
are correct
Do the audio loop test (close)
command valid
Stop the audio loop test (open)
command valid

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101

AT commands interface

13.13.Echo E
This command is used to determines whether or not the modem echoes
characters received by an external application (DTE).
Application to GSM
GSM to application
Application to GSM
GSM to application

ATE0
OK
ATE1
OK

Characters are not echoed
Done
Characters are echoed
Done

13.14.Restore factory settings

This command is used to restore the factory settings from EEPROM.
The settings which are restored are listed in appendice 16.10.

Application to GSM
GSM to application
Application to GSM
GSM to application

AT&F
OK
AT&F0
OK

Ask for restoring the factory settings
Done
Ask for restoring the factory settings
Done

13.15.Display configuration &V
This command is used to display modem configuration
&V0

: Display the modem configuration in RAM.

&V1

: Display the modem configuration in EEPROM.

&V2

: Display the factory modem configuration.

The parameters which are displayed are the following:
Q, V, S0, S2, S3,
+SPEAKER,+ECHO
Application to GSM
GSM to application

S4,

S5,

+CR,

AT&V0
Q:0 V:1 S0:000 S2:043 S3:013 S4:010 S5:008
+CR:0 +CRC:0 +CMEE:0 +CBST:0,0,1
+SPEAKER:0 +ECHO:0

+CRC,

+CMEE,

+CBST,

RAM modem parameters
Done

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102

AT commands interface

13.16.Request identification information I
This command causes the GSM module to transmit one or more lines of
specific information text.
I0
: Display the manufacturer followed by model identifications.
This command is equivalent to +CGMI and +CGMM.
I3

: Display the revision identification (equivalent to +CGMR).

: Display the modem configuration in RAM (equivalent to &V0).

I5
&V1).

: Display the modem configuration in EEPROM (equivalent to

I6
: Display the modem data features. This command enumerates
the supported data rates, data modes, and fax classes.
I7

: Display the modem voice features.

If the value is different, an “OK” string will be sent back.
Application to GSM

ATI0

GSM to application

WAVECOM MODEM
900P
OK
ATI3
310_G250.51 806216 032199 17:04
OK

Application to GSM
GSM to application

Application to GSM

ATI6
DATA RATES:
AUTOBAUD,300,1200,1200/75,2400,4800,9600
DATA MODES: T/NT,ASYNCHRONOUS
FAX CLASS 1

OK
ATI7

Manufacturer and model
identifications
GSM
900
MHz
primary band
Revision identification
Software release 3.10
,révision 51 generated on
st
the 21 of March 1999
Modem data features
Done

Modem voice features

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103

AT commands interface

GSM to application

SPEECH CODINGS: FR,EFR

Done

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104

AT commands interface

14. Specific AT commands

14.1. Cell environment description

+CCED

This command can be used by the application to retrieve the cell
parameters of the main cell and of up to six neighbour cells.
Two ways may exist for the external application to know these cell
parameters : on request of the application, or automatically by the module
every 5 seconds.
The automatic mode is not supported during communication or
registration.
The command to manage this functionality is :
Command syntax:
dump>]

AT+CCED=[,

:
0

One shot requested

Automatic shots requested

Stop automatic shots

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105

AT commands interface

* :
1

Main Cell :
if the Cell Identity is available
MCC, MNC, LAC, CI, BSIC, BCCH Freq (absolute), RxLev,
RxLev Full, RxLev Sub, RxQual, RxQual Full, RxQual
Sub,Idle TS
if the Cell Identity is not available
MCC, MNC, LAC,, BSIC, BCCH Freq (absolute), RxLev,
RxLev Full, RxLev Sub, RxQual, RxQual Full, RxQual
Sub,Idle TS

Neighbour1 to Neighbour6 :
if the Cell Identity is available
MCC, MNC, LAC, CI, BSIC, BCCH Freq (absolute), RxLev
if the Cell Identity is not available
MCC, MNC, LAC,, BSIC, BCCH Freq (absolute), RxLev

Timing Advance

Combination (addition of the values) of the requested dumped are
supported.
Notice that in idle mode, only RxLev measures (one the main cell and on
the neighbour cells) are done. The value of these RxLev is set in the RxLev
Full field for the main cell.
The response will be :
+CCED :, ... ,
OK
Where is the ASCII string of the values (in decimal except LAC
and CI values are in hexadecimal) of the parameters. If a field can not be
measured - or has no sense - the parameter is not filled (two consecutive
commas are then found).
If the parameter is absent, this of the last +CCED
command (or 15 by default) will be taken.

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106

AT commands interface

Values of MCC/MNC are set to 0 in case of “No service”

14.2. Automatic RxLev indication

+CCED

The CCED command has been extended to indicate the the received
signal strength indication (rssi) of the main cell. The principle of the command
is not changed :
Command Syntax:
dump>]

AT+CCED=[,

:
0

One shot requested

Automatic shots requested

Stop automatic shots

* :
8

Main cell RSSI indications (RxLev) from 0 to 31

The response will be a +CSQ answer and not a +CCED answer. The
07.07 format for the +CSQ is respected. The is not evaluated by this
command, so the value will always be 99.
+CSQ :, 99
OK
This +CSQ answer, when automatic shots are selected, is sent every
time the measured by the module changes. This automatic shots are
supported in idle mode and during communication.

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107

AT commands interface

Combination (addition of the values) of the requested dumped (1,2,4,8)
are supported. Both answer +CCED and +CSQ may be then generated.
If the parameter is absent, this of the last +CCED
command (or 15 by default) will be taken.

14.3. General Indications +WIND
Wavecom introduced a general mechanism to send unsollicited non
standardized indication to the customer application. The yet identified
unsollicited non standardized indications are :
-

indication of a physical change on the SIM presence pin from
connector (meaning SIM inserted, SIM removed)

indication during a mobile originated call establishement, that the
calling party is ringing.

Indication of the availability of the module, after boot, to receive AT
commands

For each of these indications, a “bit flow” has to be indicated. The syntax
of the command is :
Command syntax:

AT+WIND=

Indication
1 (bit-0)

Hardware SIM Insert / Remove indications (Rack open/close)

2 (bit-1)

Calling party alert indication

4 (bit-2)

Module is ready to treat AT commands (except phonebooks,
AOC, SMS), but still in emergency mode.

8 (bit-3)

Indication that the module is ready to treat all AT commands,
at te end of init, or after ADN / FDN swap

16 (bit-4)

Indication that a new call identifier has been created ( after an
ATD command, +CCWA indication)

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108

AT commands interface

32 (bit-5)

Indication that an active, held or waiting call has been released,

If is equal to 0 (default value), no unsolicited
“+WIND: ” will occur.

Combination (addition of the values) shall be used to allow more
than one indication flow.
0 W IndLevel W 63
The answer is OK if the value are in the previous range.
The unsolicited answer will then be :
+WIND : [ , ]

Call identifier, defined in +CLCC command.

The supported events are:
Meaning
0

The SIM presence pin has been detected as “SIM removed”
(depending from the 0 bit flow)

The SIM presence pin has been detected as “SIM inserted”

Calling party is alerting

Module is ready to treat AT commands (except phonebooks, AOC,
SMS), at init or after AT+CFUN=1

Module is ready to treat all AT commands, end of phonebook init
or swap (FDN to ADN)

Call has been created (after ATD, RING or +CCWA…)

Call has been released, after a NO CARRIER, a +CSSU: 5
indication, or after the release of a call waiting

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109

AT commands interface

AT+WIND? Command is supported and indicates the . AT+WIND is automatically stored in e2p. This means the &W
commands has not to be used. And the selected flows are always activated
after boot.
Default value is 0 : No flow activated. No indication.
AT+WIND=? Indicates the posibbles values. (0-63)

14.4. Data ciphering mode between ME and MSC

+ALEA

This command is used to get a random value from the mobile station and
to reenter it codes by the DES algorithm. In the way Application to GSM, an
"h" character shall be added before the value.
Application to GSM
GSM to Application
Application to GSM
GSM to Application
Application to GSM
GSM to Application

AT+ALEA?
AT+ALEA=1234567890123456
OK
AT+ALEA=hA125B348ABCDEF9
+ALEA=9876543210FBCADE0
OK
AT+ALEA=h12335678902234AB
NO CARRIER

get random value
command valid
value coded
value coded valid
new random value sent
new coded value
coded value false
communication hang up

14.5. Data ciphering mode +CRYPT
This command enables or disables the data ciphering (D.E.S algorithm)
of the PIN and a random value sent periodically in order to insure a more
secure communication.
Application to GSM
GSM to Application
Application to GSM
GSM to Application

AT+CRYPT=0
OK
AT+CRYPT=1
OK

Ciphering off
command valid
Ciphering on
command valid

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110

AT commands interface

14.6. Key management

+EXPKEY

This command is used to enter the key used in the D.E.S algorithm to
cipher the data (PIN ). In the way Application to GSM, an "h" character shall
be added before the value.
Application to GSM
GSM to Application
Application to GSM
GSM to Application
Application to GSM
GSM to Application

AT+EXPKEY?
+EXPKEY: NO KEY
AT+EXPKEY=h0111011101110111
OK
AT+EXPKEY?
+EXPKEY: READY

14.7. Informations on PLMN

Is a key stored in EEPROM?
key is absent
new key entered
command valid
Is a key stored in EEPROM?
key is present

+CPLMN

This command returns the status and the number of all PLMNs seen by
the mobile. It also indicates the BCCH frequency number (absolute) of the
strongest cell and its RxLev
Application to GSM
GSM to application

AT+CPLMN=?
+CPLMN: (2,20810,122,50),
(0,20801,64,53)
OK

as defined as AT+COPS=? in
the GSM TS 07 07

14.8. Analog digital converters measurements

+ADC

This command allows to get the DC level of ADC A and ADC B (those
voltages are coded on 8 bits, see hardware specifications). Those values are
updated every 10 seconds.
Application to GSM
GSM to application

AT+ADC?
+ADC: 5,4
OK

ADC A , ADC B

14.9. Mobile Equipment event reporting

+CMER

This command enabled or disables sending of unsolicited result codes in
the case of key pressing.
Command Syntax:

AT+CMER=,,,,

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111

AT commands interface

(keypad) :
0
1

No keypad event reporting.
Keypad event reporting are routed using unsolicited code :
+CKEV : ,

1: key press
0: key release
: Keyboard map is (5,5)
0
5
10
15
20

1
6
11
16
21

2
7
12
17
22

3
8
13
18
23

14.10. Read Language Preference

4
9
14
19
24

+WLPR

Command syntax:

AT+WLPR=

Response syntax:

+WLPR:

Read a Language Preference value of EF-LP. The first indexes should
have the highest priority.
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+WLPR?
+WLPR: 4
OK
AT+WLPR=1
+WLPR: 5
OK

Read command
Four language preference
available in EF-LP
Read first EF-LP index value
Language preference is 5

14.11. Write Language Preference

are

+WLPW

Command syntax:

AT+WLPW=,

Response syntax:

OK or +CME ERROR:

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112

AT commands interface

Write a Language Preference value in EF-LP
Application to GSM

AT+WLPW=1,5

GSM to application

14.12. Read GPIO value

Write Lang Pref equal to 5 in EF-LP
with index 1
EF-LP correctly updated

+WIOR

Command syntax:

AT+WIOR=

Response syntax:

+WIOR:

Set the I/O port as an input and read the I/O pin, 0 if the pin is reset, 1 if
the pin is set. Eight I/O ports are available, so the value is between 0
and 7.
Application to GSM
GSM to application

AT+WIOR=4
+WIOR: 0
OK

14.13. Write GPIO value

Read I/O (number 4) value
GPIO number 4 is reset

+WIOW

Command syntax:

AT+WIOW=,

Response syntax:

Set the I/O port as an output with a I/O pin value, 0 for reset, 1 for set
Application to GSM
GSM to application

AT+WIOW=4,0
OK

14.14.Abort command

Reset I/O (number 4)
GPIO value is written

+WAC

This specific command allows to abort SMS, SS and PLMN selection.
Command syntax:
Command

Return

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AT+WAC
AT+WAC=?

AT+WAC?

OK
Example:

Application to GSM
Application to GSM
GSM to application

AT+COPS=?
AT+WAC
OK

PLMN Selection.
Abort the ask of PLMN list

14.15.Play tone +WTONE
This specific command allows to play a tone on the current speaker or
on the buzzer. The frequency, gain and duration can be settled.
Command syntax:
AT+WTONE=[,,,,]
Response syntax:

OK or +CME ERROR:

:
0: Stop playing.
1: Play a tone

This parameter settles the destination (mandatory if =1)
1: Speaker
2: Buzzer

This parameter settles the frequency (in Hz) of the tone (mandatory if
=1).
If is the speaker, the range is between 1Hz and 3999Hz. If
is the buzzer, the range is between 1Hz and 50000Hz.
(0-15)
This parameter settles the gain of the tone. By default, the value is 9.

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Speaker (db)

Buzzer (db)

-0.25

-0.5

-1

-1.5

-2

-3

-6

-9

-12

-15

-18

-24

-30

-36

-40

-42

-infinite

(0-255)
This parameter settles the duration of the tone (unit of 20 ms). When
this parameter is equal to 0 (default value), the duration is infinite, and
the tone can be stopped by AT+WTONE=0.

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+WTONE=1,1,330,9,100
OK
AT+WTONE=0
OK
AT+WTONE=?
OK
AT+WTONE?
ERROR

Play a tone
Done
Stop playing
Done
Test command
Done
Current value

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14.16.Play DTMF tone

+WDTMF

This specific command allows to play a DTMF tone on the current
speaker. The DTMF, gain and duration can be settled.
This command is only used to play a DTMF tone. To send a DTMF on
the GSM network, use the command +VTS.
Command syntax:
AT+WDTMF=[,,,]
Response syntax:

OK or +CME ERROR:

:
0: Stop playing.
1: Play a DTMF tone

This parameter settles the DTMF to play in {0-9,*,#,A,B,C,D}
(mandatory if =1)
(0-15)
This parameter settles the gain of the tone. The values are the same
as these of +WTONE (speaker) command. By default, the value is 9.
(0-255)
This parameter settles the duration of the tone (unit of 20 ms). When
this parameter is equal to 0 (default value), the duration is infinite, and
the DTMF tone can be stopped by AT+WDTMF=0.

Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application
Application to GSM
GSM to application

AT+WDTMF=1,"*",9,100
OK
AT+WDTMF=0
OK
AT+WDTMF=?
+WDTMF: (0-1),(0-9,*,#,A,B,C,D),(0-15),(0-255)
OK
AT+WDTMF?
ERROR

Play a DTMF tone
Done
Stop playing
Done
Test command
Done
Current value

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15. Other AT commands

15.1. V.25 ter recommandation
Other remaining basic commands are not implemented, so an "ERROR"
string will be sent back.
All commands about modulation control, error control and data
compression are not recognized. An "ERROR" string will be sent back.

15.2. GSM 07.05 recommandation
All the remaining commands are not implemented, so an "ERROR"
string will be sent back.

15.3. GSM 07.07 recommandation
All the remaining commands are not implemented, so an "ERROR"
string will be sent back.

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16. Appendices

16.1. ME error result code : +CME ERROR:

3
4
5
10
11
12
13
16

Meaning
Operation not allowed
Operation not supported
PH-SIM PIN required (SIM lock)
SIM not inserted
SIM PIN required
SIM PUK required
SIM failure
Incorrect password

Resulting from the following commands
All GSM 07.07 commands (+CME ERROR: 3)
All GSM 07.07 commands (+CME ERROR: 4)
All GSM 07.07 commands (+CME ERROR: 5)
All GSM 07.07 commands (+CME ERROR: 10)
All GSM 07.07 commands (+CME ERROR: 11)
All GSM 07.07 commands (+CME ERROR: 12)
All GSM 07.07 commands (+CME ERROR: 13)
+CACM, +CAMM, +CPUC, +CLCK, +CPWD,
+CPIN, +CPIN2 (+CME ERROR: 16)
+CPBW (FDN), +CLCK (FDN),
+CACM, +CAMM, +CPUC, +CPBW (FDN),
+CPIN, +CPIN2, +CLCK (FDN), +CPWD
+CPBW
+CPBR, +CPBW, ATD>index, +WMGO
+CPBF, +CPBP, +CPBN, +CGSN, +WOPN
+CPBW, +CPIN, +CPIN2, +CLCK, +CPWD, +
+CPBW, ATD, +CCFC
+VTS, +COPS=?, +CLCK, +CCFC, +CCWA
– +COPS

17
18

SIM PIN2 required
SIM PUK2 required

20
21
22
24
26
30
32

Memory full
Invalid index
Not found
Text string too long
Dial string too long
No network service
Network
not
allowed
emergency calls only
Network personalisation PIN All GSM 07.07 commands (+CME ERROR: 40)
required (Network lock)

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16.2. Message service failure result code: +CMS ERROR :
is defined as below :

1 to
127
301
302
303
304
305
310
311
312
313
316
317
318
321
322
330

Meaning
Error cause values from the
GSM
recommendation
04.11 Annex E-2
SMS service of ME reserved
Operation not allowed

Resulting from the following commands
+CMGS, +CMSS

+CSMS (with +CMS: ERROR 301)
All SMS commands (+CMSS, +CMGL, +CPMS,
+CSMP…
Operation not supported
All SMS commands
Invalid
PDU
mode +CMGS, +CMGW
parameter
Invalid text mode parameter +CMGS, +CMGW, +CMSS
SIM not inserted
All SMS commands
SIM PIN required
All SMS commands
PH-SIM PIN required
All SMS commands
SIM failure
All SMS commands
SIM PUK required
All SMS commands
SIM PIN2 required
All SMS commands
SIM PUK2 required
All SMS commands
Invalid memory index
+CMGR, +CMSS, +CMGD
SIM memory full
+CMGW
SC address unknown
+CSCA?, +CMSS, +CMGS

16.3. Specific error result codes

Meaning
512
MM establishment failure
(for SMS)
513
Lower layer failure (for SMS)
514
CP error (for SMS)
515
Please
wait,
init
or
command processing in
progress

Resulting from the following commands
+CMGS, +CMSS (+CMS ERROR: 512)
+CMGS, +CMSS
+CMGS, +CMSS
All commands ( “+CME ERROR: 515” or “+CMS
ERROR: 515”)

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16.4. Failure Cause from GSM 04.08 recommandation (+CEER)
Cause value
1
3
6
8
16
17
18
19
21
22
26
27
28
29
30
31
34
38
41
42
43
44
47
49
50
55
57
58
63
65
68
69
70
79
81
87
88
91
95
96

Diagnostic
Unassigned (unallocated) number
No route to destination
Channel unacceptable
Operator determined barring
Normal call clearing
User busy
No user responding
User alerting, no answer
Call rejected
Number changed
Non selected user clearing
Destination out of order
Invalid number format (incomplete number)
Facility rejected
Response to STATUS ENQUIRY
Normal, unspecified
No circuit/channel available
Network out of order
Temporary failure
Switching equipment congestion
Access information discarded
Requested circuit/channel not available
Resources unavailable, unspecified
Quality of service unavailable
Requested facility not subscribed
Incoming calls barred with in the CUG
Bearer capability not authorized
Bearer capability not presently available
Service or option not available, unspecified
Bearer service not implemented
ACM equal to or greater than ACMmax
Requested facility not implemented
Only restricted digital information bearer capability is
Service or option not implemented, unspecified
Invalid transaction identifier value
User not member of CUG
Incompatible destination
Invalid transit network selection
Semantically incorrect message
Invalid mandatory information

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97
98
99
100
101
102
111
127

Message type non-existent or not implemented
Message type not compatible with protocol state
Information element non-existent or not implemented
Conditional IE error
Message not compatible with protocol state
Recovery on timer expiry
Protocol error, unspecified
Interworking, unspecified

All other values in the range 0 to 31 shall be treated as cause 31.
All other values in the range 32 to 47 shall be treated as cause 47.
All other values in the range 48 to 63 shall be treated as cause 63.
All other values in the range 64 to 79 shall be treated as cause 79.
All other values in the range 80 to 95 shall be treated as cause 95.
All other values in the range 96 to 111 shall be treated as cause 111.
All other values in the range 112 to 127 shall be treated as cause 127.

16.5. Specific Failure Cause for +CEER
240
241
252
253
254
255

FDN is active and number is not in FDN
Call operation not allowed
Call barring on outgoing calls
Call barring on incoming calls
Call impossible
Lower layer failure

16.6. GSM 04.11 Annex E-2: Mobile originating SM-transfer
These error causes could appear for SMS commands (+CMGS, +CMSS, +CMGD…)

Cause no 1: "Unassigned (unallocated) number"
This cause indicates that the destination requested by the Mobile Station cannot be
reached because, although the number is in a valid format, it is not currently assigned
(allocated).
Cause no 8: "Operator determined barring"
This cause indicates that the MS has tried to send a mobile originating short message
when the MS's network operator or service provider has forbidden such transactions.

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Cause no 10: "Call barred"
This cause indicates that the outgoing call barred service applies to the short
message service for the called destination.
Cause no 21: "Short message transfer rejected"
This cause indicates that the equipment sending this cause does not wish to accept
this short message, although it could have accepted the short message since the equipment
sending this cause is neither busy nor incompatible.
Cause no 27: "Destination out of service"
This cause indicates that the destination indicated by the Mobile Station cannot be
reached because the interface to the destination is not functioning correctly. The term "not
functioning correctly" indicates that a signalling message was unable to be delivered to the
remote user; e.g., a physical layer or data link layer failure at the remote user, user equipment
off-line, etc.
Cause no 28: "Unidentified subscriber"
This cause indicates that the subscriber is not registered in the PLMN (i.e. IMSI not
known)
Cause no 29: "Facility rejected"
This cause indicates that the facility requested by the Mobile Station is not supported
by the PLMN.
Cause no 30: "Unknown subscriber"
This cause indicates that the subscriber is not registered in the HLR (i.e. IMSI or
directory number is not allocated to a subscriber).
Cause no 38: "Network out of order"
This cause indicates that the network is not functioning correctly and that the
condition is likely to last a relatively long period of time; e.g., immediately reattempting the
short message transfer is not likely to be successful.
Cause no 41: "Temporary failure"
This cause indicates that the network is not functioning correctly and that the
condition is not likely to last a long period of time; e.g., the Mobile Station may wish to try
another short message transfer attempt almost immediately.
Cause no 42: "Congestion"
This cause indicates that the short message service cannot be serviced because of
high traffic.
Cause no 47: "Resources unavailable, unspecified"

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This cause is used to report a resource unavailable event only when no other cause
applies.
Cause no 69: "Requested facility not implemented"
This cause indicates that the network is unable to provide the requested short
message service.
Cause no 81: "Invalid short message transfer reference value"
This cause indicates that the equipment sending this cause has received a message
with a short message reference which is not currently in use on the MS-network interface.
Cause no 95: "Invalid message, unspecified"
This cause is used to report an invalid message event only when no other cause in
the invalid message class applies.
Cause no 96: "Invalid mandatory information"
This cause indicates that the equipment sending this cause has received a message
where a mandatory information element is missing and/or has a content error (the two cases
are undistinguishable).
Cause no 97: "Message type non-existent or not implemented"
This cause indicates that the equipment sending this cause has received a message
with a message type it does not recognize either because this is a message not defined or
defined but not implemented by the equipment sending this cause.
Cause no 98: "Message not compatible with short message protocol state"
This cause indicates that the equipment sending this cause has received a message
such that the procedures do not indicate that this is a permissible message to receive while in
the short message transfer state.
Cause no 99: "Information element non-existent or not implemented"
This cause indicates that the equipment sending this cause has received a message
which includes information elements not recognized because the information element identifier
is not defined or it is defined but not implemented by the equipment sending the cause.
However, the information element is not required to be present in the message in
order for the equipment sending the cause to process the message.
Cause no 111: "Protocol error, unspecified"
This cause is used to report a protocol error event only when no other cause applies.
Cause no 127: "Interworking, unspecified"

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This cause indicates that there has been interworking with a network which does not
provide causes for actions it takes; thus, the precise cause for a message which is being send
cannot be ascertained.
All values other than specified should be treated as error Cause No 41

16.7. Unsolicited result codes
Verbose result code
RING
+CMTI: ,

Numeric (V0 set)
2
as verbose

+CMT: …
(text mode)
or +CMT: [,]… (PDU)
+CDS: , … (text mode)
or +CDS: ,… (PDU)
+CCCM :
+CKEV:
+CCWA :,,
[,]
+CLIP :
,

[,,,]
+CREG : [,,]
+CRING :
+WIND: [,]

as verbose

+CSQ: ,99

As verbose
(specific)
As verbose
(specific)

+CSSI:

As verbose
As verbose
As verbose

Description
Incoming call signal from network
Incoming message stored in
(“SM”) at location
Incoming
message
directly
displayed
SMS status report after sending a
SMS
Current Call Meter value
Key press or release
Call Waiting number

As verbose

Incoming Call Presentation

As verbose
As verbose
As verbose
(specific)

Network registration indication
Incoming call type (VOICE, FAX ...)
Specific unsolicited indication (SIM
Insert/Remove, End of init, Reset,
Alerting, Call creation/release)
Automatic RxLev indication with
AT+CCED=1,8 command
Supplementary service notification
during a call setup

As verbose

16.8. Final result codes
Verbose result code
+CME ERROR:
+CMS ERROR:
BUSY
ERROR
NO ANSWER

Numeric (V0 set)
As verbose
As verbose
7
4
8

Description
Error from GSM 07.05 commands
Error from SMS commands (07.07)
Busy signal detected
Command not accepted
Connection completion timeout

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NO CARRIER
OK

3
0

RING

Connection terminated
Acknowledges correct execution of
a command line
Incoming call signal from network

16.9. Intermediate result codes
Verbose result code
+COLP :,
+CR :
+ILRR:
CONNECT 300
CONNECT 1200
CONNECT 1200/75
CONNECT 2400
CONNECT 4800
CONNECT 9600
+CSSU:

Numeric (V0 set)
as verbose
as verbose
as verbose
10
11
12
13
14
15
as verbose
(specific)

Description
Outgoing Call Presentation
Outgoing Call report control
Local TA-TE data rate
Data connection at 300 bauds
Data connection at 1200 bauds
Data connection at 1200/75 bauds
Data connection at 2400 bauds
Data connection at 4800 bauds
Data connection at 9600 bauds
Supplementary service notification
during a call

16.10.Parameters storage
Command
+CMEE
+CSCS
ATS0
+CICB
+VGR
+VGT
+SPEAKER
+SIDET
+CREG
+WAIP
+CMGF
+CSDH
+CNMI
+CSMP

AT&W
(E2P)
X

AT+CSAS

X
X
X
X
X
X
X
X
X
X
X
X
X

AT&F
X(SIM, E2P)
X
X
X
X
X
X
X
X
X
X
X
X
X

Initial values
0
“PCCP437”
0 (no auto-answer)
2 (speech)
64 (all speakers)
64 (all microphones)
0 (Spk 0 & Mic 0)
1,1
0
0
1 (text)
0
0,1,0, 0, 0
1, 167, 0, 0

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+CSCA
+CCWA
+CLIP
+COLP
+CBST
+CRLP
+CR
+CRC
+IPR
+IFC
+ICF
E
&C
&D
&S
Q
V
+DOPT
+ECHO
+WIND

X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Command
Command

X
X
X
X
X
X
X

X
X
X
X
X

SIM dependant (phase 2)
0
0
0
0, 0, 1
61, 61, 48, 6, 0
0
0
0 (autobaud)
2,2
3,4
1
1
1
1
0
1
1,1
0,160,12,5,512,10
0

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16.11.GSM sequences list
In accordance with GSM 02.30, the module implements the following
GSM sequences, which can be acceded by the ATD and the +CKPD
commands.

16.11.1.Security
**04*OLDPIN*NEWPIN*NEWPIN#

Change PIN code

**042*OLDPIN2*NEWPIN2*NEWPIN2#

Change PIN2 code

**05*PUK*NEWPIN*NEWPIN#

Unlock PIN code

**052*PUK2*NEWPIN2*NEWPIN2#

Unlock PIN2 code

*#06#

Show the IMEI number

16.11.2.Call forwarding
*SC#

Activate

**SC*PhoneNumber# or

**SC*PhoneNumber*BS# or
**SC*PhoneNumber*[BS]*T#
*#SC# or *#SC**BS#

Check status

#SC#

Deactivate

##SC# or ##SC**BS#

Unregister and deactivate

The Service codes (SC) are the followings:
002

all call forwarding

004

all conditional call forwarding

call forwarding unconditional

call forwarding on no answer

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call forwarding on not reachable

call busy

The Network service codes (BS) are the followings:
No code

All tele and bearer services

All teleservices

Telephony

All data teleservices

Fax services

Short Message Services

All teleservices except SMS

All bearer services

All asynchronous services

All synchronous services

All data circuit synchronous

All data circuit asynchronous

All dedicated packet access

All dedicated PAD access

The no reply condition timer (T), is only used for SC=61.

16.11.3.Call barring
*SC*Password# or *SC*Password*BS#

Activate

*#SC# or *#SC**BS#

Check status

#SC*Password# or #SC*Password*BS#

Deactivate

**03*330*OLDPWD*NEWPWD*NEWPWD#

Change password for call barring

**03**OLDPWD*NEWPWD*NEWPWD#
*03*330*OLDPWD*NEWPWD*NEWPWD#
*03**OLDPWD*NEWPWD*NEWPWD#

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The Service codes (SC) are the followings:
33

call barring of outgoing call

330

all barring service

331

call barring of outgoing international call

332

call barring of outgoing international calls except to HPLMN

333

all outgoing barring service

call barring of incoming calls

351

call barring of incoming calls if roaming

353

all incoming barring service

The Network service codes (BS) are the same as these of the call
forwarding sequences.

16.11.4.Call waiting
*43#

Activate

*#43#

Check status

#43#

Deactivate

16.11.5.Number presentation
*#30#

CLIP check status

*#31#

CLIR check status

*31#PhoneNumber

Invoke CLIR for a voice call

#31#PhoneNumber

Suppress CLIR for a voice call

*#76#

COLP check status

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16.12.Operator names

Country
Initials
A
A
AL
ALG
AND
AUS
AUS
AUS
AZE
AZE
B
BD
BEL
BG
BGD
BHR
BIH
BRU
CAN
CH
CH
CH
CH
CHN
CHN
CI
CI
CL
CL
CPV
CY
CZ

MCC

MNC

232
232
276
603
213
505
505
505
400
400
206
470
206
284
470
426
218
528
302
228
228
228
228
460
460
612
612
730
730
625
280
230

01
03
01
01
03
01
02
03
01
02
10
03
01
01
01
01
90
11
037
01
01
02
03
00
01
03
05
001
010
01
01
01

Preferred Presentation of
Country Initials and Mobile
Network Name
AUSTRALIA A1.
A max.
AMC - AL
ALGERIAN MOBILE NETWORK
STA-MOBILAND
Telstra MobileNet
YES OPTUS AUS
VODAFONE AUS
AZE - AZERCELL GSM
BAKCELL GSM 2000
B mobistar
BD ShebaWorld
BEL PROXIMUS
M-TEL GSM BG
BGD-GP
BHR MOBILE PLUS
PTT-GSMBIH
BRU-DSTCom
CAN-MCELL
SWISS GSM
SWISS GSM
diAx Swiss
orange CH
CHINA TELECOM
CHN-CUGSM
CI Ivoiris
TELECEL-CI
CL ENTEL PCS
CL ENTEL PCS
CPV MOVEL
CY CYTAGSM
PAEGAS- CZ

Abbreviated
Mobile Network
Name
A1
max.
AMC
AMN
M-AND
Telstra
Optus
VFONE
ACELL
BKCELL
mobi*
SHEBA
PROXI
M-TEL
GP
M.PLUS
BHGSM
DSTCom
MCELL
SWISS
SWISS
diAx
orange
CT-GSM
CU-GSM
Ivoir
TELCEL
ENTEL
ENTEL
CMOVEL
CY-GSM
PAEGAS

Type of
network
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
PCS1900
GSM900
GSM1800
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
PCS1900
GSM900
GSM900
GSM900

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CZ
D
D
D
D
DK
DK
DK
DK
E
E
E
EE
EE
EE
EGY
EGY
ETH
F
F
F
F
F
F
FI
FI
FI
FI
FIJ
GEO
GEO
GH
GIB
GN
GR
GR
GR
H
H
HK

230
262
262
262
262
238
238
238
238
214
214
214
248
248
248
602
602
636
208
208
208
340
547
647
244
244
244
244
542
282
282
620
266
611
202
202
202
216
216
454

02
01
02
03
07
01
02
20
30
01
03
07
01
02
03
01
02
01
01
10
20
01
20
10
03
05
09
91
01
01
02
01
01
02
01
05
10
01
30
00

EUROTEL - CZ
D1-TELEKOM
D2 PRIVAT
E-Plus
D Interkom
DK TDK-MOBIL
DK SONOFON
TELIA DK
DK mobilix
E AIRTEL
E AMENA
MOVISTAR
EE EMT GSM
EE RLE
EE Q GSM
EGY MobiNiL
EGY CLICK GSM
ETH-MTN
F Itineris
F SFR
F - BOUYGUES TELECOM
F AMERIS
F-VINI
SFR REUNION
FI TELIA
FI RADIOLINJA
FI FINNET
FI SONERA
VODAFONE FIJ
GEO-GEOCELL
MAGTI-GSM-GEO
GH SPACEFON
GIBTEL GSM
GN LAGUI
GR COSMOTE
GR PANAFON
GR TELESTET
H PANNON GSM
H-WESTEL 900
HK TELECOM

ET - CZ
D1
D2
E-Plus
Ik
TD MOB
SONO
TELIA
#mbix
AIRTL
AMENA
MSTAR
EMT
RLE
Q GSM
MobiNiL
CLICK
ET-MTN
Itine
SFR
BYTEL
AMERIS
VINI
SFR RU
TELIA
RL
FINNET
SONERA
VODAFJ
GCELL
MAGTI
SPACE
GIBTEL
LAGUI
C-OTE
PAN
TLSTET
PANNON
W-900
TELCO

GSM900
GSM900
GSM900
GSM1800
GSM1800
GSM900
GSM900
GSM1800
GSM1800
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

131

AT commands interface

HK
HK
HK
HK
HK
HR
HR
I
I
I
I
IL
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
INA
IND
IND
IND
IRL
IRL
IS
IS
JOR
KGZ
KHM
KHM
KSA

454
454
454
454
454
219
219
222
222
222
222
425
404
404
404
404
404
404
404
404
404
404
404
404
404
404
404
404
510
510
510
272
272
274
274
416
437
456
456
420

04
06
10
12
16
01
10
01
10
88
88
01
01
07
10
11
12
14
15
20
21
27
30
41
42
43
46
60
01
10
11
01
02
01
02
01
01
01
02
01

HK HTCLGSM
HK SMARTONE
HK NEW WORLD
HK PEOPLES
HK SUNDAY
HR - CRONET
HR-VIPNET
I TELECOM
I -OMNITEL
I WIND
I WIND
IL ORANGE
INA ESSAR CELLPHONE
INA - TATA CELLULAR
INA-AIRTL
INA ESSAR CELLPHONE
INA - ESCOTEL
MODICOM INA
INA ESSAR CELLPHONE
INA MaxTouch
BPL MOBILE
BPL MOBILE
INA COMMAND
INA RPG
INA AIRCEL
BPL MOBILE
BPL MOBILE
INA ESSAR CELLPHONE
IND SATELINDOCEL
IND TELKOMSEL
IND GSM-XL
IRL Eircell
IRL DIGIFONE
IS SIMINN
IS TAL
Fastlink
BITEL KGZ
MOBITEL - KHM
KHM-SAMART-GSM
ALJAWWAL

HTCL
HKSMC
NWPCS
PTC
SUNDAY
CRON
VIP
TIM
OMNI
I WIND
I WIND
ORANGE
ESSARH
TATA
AIRTL
ESSAR
ESCOTL
MODICO
ESSARU
MAXTCH
BPL MOBILE
BPL MOBILE
COMMND
RPG
AIRCEL
BPL MOB
BPL MOB
ESSARR
SAT-C
T-SEL
EXCEL
Eircell
DIGI
SIMINN
TAL
FSTLNK
BITEL
MT-KHM
KHM-SM
KSA

GSM900
GSM900
GSM1800
GSM1800
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

132

AT commands interface

KSA
KT
KZ
L
L
L
LBR
LSO
LT
LTU
LV
LV
M
MAC
MD
MDG
MKD
MOR
MOZ
MRU
MW
MY
MY
MY
MY
MY
N
N
NCL
NL
NL
NL
NL
NL
NZ
OMN
P
P
P
PGY

420
419
401
270
270
270
618
651
246
246
247
247
278
455
259
642
294
604
643
617
650
502
502
502
502
502
242
242
546
204
204
204
204
204
530
422
268
268
268
744

07
02
01
01
77
77
01
01
02
01
01
02
01
01
01
02
01
01
01
01
01
12
13
16
17
19
01
02
01
04
08
12
16
20
01
02
01
03
06
01

EAE-ALJAWWAL
KT MTCNet
KZ K-MOBILE
L LUXGSM
L TANGO
L TANGO
LBR OMEGA
VCL COMMS
LT BITE GSM
OMNITEL LT
LV LMT GSM
LV BALTCOM
VODAFONE MLA
MAC-CTMGSM
MD VOXTEL
MDG ANTARIS
MKD-MOBIMAK
MOR IAM
MOZ - mCel
CELLPLUS-MRU
MW CP 900
MY maxis mobile
MY EMARTEL
MY DIGI 1800
MY - ADAM 017
MY CELCOM GSM
N Telenor
N NetCom GSM
NCL MOBILIS
NL LIBERTEL
NL KPN TELECOM
NL TELFORT
Ben NL
dutchtone
VODAFONE NZ
OMAN MOBILE
P TELECEL
P OPTIMUS
P TMN
HOLA PARAGUAY S.A.

EAE
MTC
K-MOBILE
LUXGSM
TANGO
TANGO
OMEGA
VCLCOM
BITE
OMT
LMT
B-COM
VODA M
CTMGSM
VOXTEL
ANTARI
MOBI-M
IAM
mCel
CELL +
CP 900
maxis
MRTEL
MT18
ADAM
CELCOM
TELENOR
N COM
MOBNCL
LIBTEL
NL KPN
TELFORT
Ben NL
Dtone
VODA
OMAN
TLCL
OPTIM
TMN
HPGYSA

GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM1800
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

133

AT commands interface

PH
PH
PH
PH
PL
PL
PL
QAT
R
RA
RL
RL
RO
RO
ROC
RUS
RUS
RUS
RUS
RUS
RUS
RUS
RUS
RUS
RUS
S
S
S
SA
SA
SDN
SEZ
SEZ
SGP
SGP
SGP
SGP
SI
SI
SK

515
515
515
515
260
260
260
427
635
283
415
415
226
226
466
250
250
250
250
250
250
250
250
250
250
240
240
240
655
655
634
633
633
525
525
525
525
293
293
231

01
02
03
03
01
02
03
01
10
01
01
03
01
10
92
01
02
05
07
07
12
13
28
39
44
01
07
08
01
10
01
01
10
01
02
03
05
40
41
01

ISLACOM
Globe Telecom-PH
PH SMART
PH SMART
PL-PLUS
PL-ERA GSM
PL IDEA
QAT-QATARNET
R-CELL
RA-ARMGSM
RL Cellis
RL LibanCell
RO CONNEX
RO dialog
ROC LDTA GSM
MTS-RUS
North-West GSM RUS
SCS RUS
RUS BMT
RUS SMARTS
Far East RUS
Kuban-GSM RUS
EXTEL RUS
Uraltel
RUS North Caucasian GSM
TELIA S
S COMVIQ
S EUROPOLITAN
VodaCom-SA
MTN-SA
SDN MobiTel
SEZ CELLULAR SERVICES
SEZ AIRTEL
ST-GSM-SGP
ST-GSM1800-SGP
M1-GSM-SGP
STARHUB-SGP
SI.MOBIL
SI MOBITEL GSM
SVK GT

ISLA
GLOBE
SMART
SMART
PLUS
ERAGSM
IDEA
Q-NET
RCELL
ARMMO1
CLLIS
LibCL
CONNEX
dialog
LDGSM
MTS
NWGSM
SCS
BMT
SMARTS
FEast
KUGSM
EXTEL
UTL
NC-GSM
TELIA
IQ
EURO
VODA
MTN
SD-MOB
SEYCEL
AIRTEL
STGSM
GSM1800
M1-GSM
STARHUB
SI.MOBIL
SI-GSM
SVK GT

GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

134

AT commands interface

SK
SN
SRI
SYR
TG
TH
TH
TH
TR
TR
TWN
TWN
TWN
TWN
TWN
TZ
UA
UA
UA
UAE
UG
UG
UK
UK
UK
UK
UK
UK
UK
UKR
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA

231
608
413
417
615
520
520
520
286
286
466
466
466
466
466
640
255
255
255
424
641
641
234
234
234
234
234
234
234
255
310
310
310
310
310
310
310
310
310
310

02
01
02
09
01
01
10
23
01
02
01
06
88
93
97
01
01
03
05
02
01
10
10
15
30
33
50
55
58
02
010
011
012
013
020
030
031
040
050
060

EUROTEL-SK
SN ALIZE
SRI DIALOG
SYR MOBILE SYR
TG-TOGO CELL
TH AIS GSM
TH WCS
TH-HELLO
TR PTT/TURKCELL GSM
TR TELSIM
Far EasTone
TWN Tuntex GSM 1800
KGT-Online
TWN MOBITAI
TWN GSM 1800
Tritel - TZ
UA UMC
UA-KYIVSTAR
UA - GOLDEN TELECOM
UAE ETISALAT
UG CelTel
MTN-UGANDA
UK CELLNET
UK VODAFONE
ONE 2 ONE
ORANGE
JERSEY TELECOMS GSM UK
GUERNSEY TEL UK
MANX TELECOM PRONTO GSM
FLASH-UKR
USA MCI
USA WTTCKy
USA D&E Com
USA MobileTel
USA Sprint
USA PCS PRIME
USA-AERIAL
USA PCS PRIME
USA PCS PRIME
USA PCS PRIME

ET-SK
ALIZE
DALOG
MOBILE
TGCELL
TH AIS
TH WCS
HELLO
TCELL
TELSIM
FET
TUNTEX
KGT
TW MOB
PCC
TRITEL
UMC
UA-KS
GT-BCS
ETSLT
CELTEL
MTN-UG
CLNET
VODA
ONE2ONE
ORANGE
JT GSM
GSY-TEL
MANX
FLASH

GSM900
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM1800
GSM900
GSM900
GSM900
GSM1900
GSM1900
GSM900
GSM1900
GSM900
GSM900
GSM900
GSM1800
GSM900
GSM900
GSM900
GSM900
GSM900
GSM1800
GSM1800
GSM900
GSM900
GSM900
GSM900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

135

AT commands interface

USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA

310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310

070
080
090
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
380
390
400
410
420
430
440
450
460
470
480

USA PCS PRIME
USA PCS PRIME
USA PCS PRIME
USA PCS PRIME
USA PCS PRIME
USA PCS PRIME
USA PCS PRIME
USA PCS PRIME
USA BellSouth
USA OMNIPOINT
USA PAC BELL
USA PAC BELL
USA COX
Voice STREAM USA
Voice STREAM USA
Voice STREAM USA
Voice STREAM USA
Voice STREAM USA
Voice STREAM USA
Voice STREAM USA
USA PowerTel
USA PowerTel
USA PowerTel
USA Aerial
USA-AERIAL
USA Aerial
USA Aerial
USA Aerial
USA Aerial
USA Pocket
USA Pocket
USA Pocket
USA Pocket
USA Pocket
USA Pocket
USA Pocket
USA Pocket
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT

BSMDCS

WWC
WWC
WWC
WWC
WWC
WWC
WWC
USA 27

AERIAL

PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

136

AT commands interface

USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
VZ
YU
ZW
ZW

310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
310
734
220
648
648

490
500
510
520
530
540
550
560
570
580
610
620
630
640
660
670
680
690
01
01
01
03

USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA OMNIPOINT
USA Einstein
USA DiGiPH
USA WTTCKy
USA NPI
USA Conestoga
VZ INFO
YU MOBTEL
ZW NET*ONE
TELECEL ZW

PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
PCS1900
INFONT
MOBTEL
NET*1
TELECEL

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

137

AT commands interface

17. Annex A (informative)
This chapter illustrates informative examples about the general AT
commands used for a communication.

Informative example about the PIN required
1.1.1. Example 1 : In the start the ME is powered off.

AT+CMEE=1
OK

Enable the report mobile equipment errors

AT+CREG=1
OK

Report registration

AT+CPAS
+CPAS: 5
OK

Query ME Status
(ME is asleep)

AT+CFUN=1
OK

Set ME to full functionality

AT+COPS=0
+CME ERROR: 11

Ask for automatic operator selection and registration.
SIM PIN required.

AT+CPIN=1234
+CME ERROR: 16

User entered a wrong PIN
Incorrect password.

AT+CPIN=0000
OK

PIN Ok

AT+COPS=0
OK

Ask for automatic operator selection and registration.

+CREG:1

Registered in the network

AT+COPS=3,0
OK

Select the long name format alphanumeric.

AT+COPS?
+COPS: 0,0,”I OMNITEL”

Get the operator name

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

138

AT commands interface

1.1.2. Example 2: In the start the ME has already been powered on.

AT+CMEE=1
OK

Enable the report mobile equipment errors

AT+CPAS
+CPAS: 0
OK

Query ME Status
ME is already to receive commands

AT+CPIN?
+CPIN: SIM PIN

Is ME asking password?
Yes, SIM PIN required

AT+CPIN=0000
OK

PIN Ok

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

139

AT commands interface

Informative example where a voice call is originated.
In the start the ME is powered on and the SIM PIN has been entered.

AT+CMEE=1
OK

Enable the report mobile equipment errors

AT+WIND=63
OK

Ask to display the general indications.

AT+CPIN?
+CPIN: READY

Is ME asking password?
GSM module is ready

ATD0607103543;
+WIND: 5,1

Originate a voice call
Indication about a call creation.

+WIND: 2

Remote party is ringing.

Call setup was successful

Conversation…
ATH
OK

Release the call

When a voice call is attempted from a phonebook :

ATD>”John Pamborn”;
+CME ERROR: 22

Entry “John Pamborn” is not found.

ATD>”Joel Guerry”;
+WIND: 5,1

Indication about a of call creation.

+WIND: 2

Remote party is ringing.

Call setup was successful

Conversation…
ATH
OK

Release the call

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

140

AT commands interface

Informative example about an incoming call.
In the start the ME is powered on and the SIM PIN has been entered.

AT+CMEE=1
OK

Enable the report mobile equipment errors

AT+WIND=63
OK

Ask to display the general indications.

AT+CLIP=1
OK

Enable the calling line identification presentation.

AT+CRC=1
OK

Enable extended format of incoming indication.

AT+CNUM
+CNUM: “Speech”,”+33608971019”,145

Query own number (voice number) or MSISDN.

OK
Originate the number on another ME.
+WIND: 5, 1

Indication about a call creation. (Ring)

+CRING: VOICE

Type of call is VOICE.

+CLIP: "+33607103543",145,,,"John Panborn"

Identification about the remote user.

+CRING: VOICE
ATA
OK

Answer the call.

…Conversation…
NO CARRIER

The call has been released by the remote user.

+WIND: 6,1

Indication about call release.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

141

AT commands interface

Informative example about a call forwarding
In the start the ME is powered on and the SIM PIN has been entered.

AT+CMEE=1
OK

Enable the report mobile equipment errors

AT+CFCC=1,3,”0607492638”
OK

Registered a call forwarding when mobile is busy.

AT+CCFC=2,3,”0149293031”,129
+CME ERROR: 30

Registered a call forwarding when it does answer.
No network service

AT+CCFC=1,2
+CCFC: 1,1,”+33607492638”,145

Interrogate
Call forwarding active for a voice call.

AT+CFCC=1,4
OK

Delete call forwarding Mobile busy

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

142

AT commands interface

Informative example about a multiparty
In the start the ME is powered on and the SIM PIN has been entered.

AT+CMEE=1
OK

Enable the report mobile equipment errors

AT+WIND=63
OK

Ask to display the general indications.

AT+CCWA=1,1
OK

Enable call waiting.

ATD>”John Panborn”;
+WIND: 5,1

Indication about a of call creation.

+WIND: 2

Remote ring.

Call setup was successful

…Conversation…
+WIND: 5,2

Indication about another call creation.

+CCWA: “+33595984834”,145,”Dolores Claiborne”

Another call is waiting.

AT+CHLD=2
OK

Put first call on hold and answer the second one.

…Conversation…
AT+CHLD=3
OK

Every calls are into a multiparty.

AT+CHLD=11

Release the first call (with John Panborn) and recover
the second call (with Dolores Claiborne)

…Conversation …
ATH

Release the second call.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

143

AT commands interface

Informative example about phonebooks
For each example illustrates in this section: in the start the ME is
powered on and the SIM PIN has been entered.

1.6.1. Example 1 : The whole phonebook of the ME is read

AT+CPBS=?
+CPBS: (“SM”,”FD”,”ON”)

Query supported phonebook memories
ADN, FDN, and MSISDN phonebooks supported.

AT+CPBS=”SM”
OK

Select ADN phonebook..

AT+CPBR=?
+CPBR: (1-80),20,14

Read index range and element lengths.
80 locations (from 1 to 80), max length of 20
for phone 14 characters max for associated text.

AT+CPBR=1,80
+CPBR: 1,“0346572834”,129,”Dolores Claiborne”
+CPBR: 2,”1284374523”,129,”Thad Beaumont”
+CPBR: 3, “1243657845”,129,”John Panborn”
OK

Read all entries but only the ones set are returned.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

144

AT commands interface

1.6.2. Example 2 : Erase or Write a phonebook entry

AT+CPBW=?
+CPBW: (1-80),20,(129,145),14

Query version of the write phonebook entry.
80 locations, max length of 20 for phone,
TON/NPI of 129 or 145 and 14 characteers max
For length of text.

AT+CPBW=3
OK

Erase location 3

AT+CPBW=3,”4356729012”,129,”Carry”
Ok

Write at location 3.

AT+CPBR=1,80
+CPBR: 1,“0346572834”,129,”Dolores Claiborne”
+CPBR: 2,”1284374523”,129,”Thad Beaumont”
+CPBR: 3,”4356729012”,129,”Carry”
OK

Read all entries but only the ones set are returned.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

145

AT commands interface

1.6.3. Example 3 : Find phonebook entries

AT+CPBF=?
+CPBF: 20,14

Query version of the write phonebook entry.
Max length of 20 for phone,
10 characters for the text.

AT+CPBF=”D”
+CPBF: 1,“0346572834”,129,”Dolores Claiborne”
OK

Read entry with “D”.

AT+CPBF=”W”
+CME ERROR: 22

Read entrie with “D”.
Entry not found.

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

146

AT commands interface

Informative example about short messages

1.6.4. Example 4 : Send a short message

AT+CNMI=0,1,1,1,0
OK

SMS-DELIVERs are directly stored, SMS-STATUS-REPORTs are displayed

AT+CSMP=17,169,0,0
OK

”

SMS-SUBMIT message with a validity period (one day)

AT+CMGF=1
OK

””

Text mode to send a Short Message

AT+CSCA=”+33608080706”
OK

Set Service Center Address to +33608080706

AT+CMGS=0601290800 Send a SMS-SUBMIT to mobile phone
Ø
Module sends a 4 characters sequence: 0x0D 0x0A 0x3E 0x20
This is the first text line

Edit first line and press carriage return (, 0x0D)

This is the last text line

Edit last line and send message by pressing (0x1A)

+CMGS: 5

Success: message reference 5 is returned from the SMS Service Center

+CDS: 2,5,”0601290800”,129,”99/05/01 14:15:10+04
”

”

Success: report of successful message delivery received

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

147

AT commands interface

1.6.5. Example 5: Read short messages

AT+CMGF=1

Text mode to read Short Messages

AT+CMGL=”ALL”
List all stored messages
+CMGL: 1,”REC READ”,”+336290918”,,”99/05/01 14:15:10+04”
This is the first message
+CMGL: 2,”REC UNREAD”,”+336290918”,,”99/05/01 14:19:44+04”
This is the second message
OK
AT+CMGR=1
””
Read the first message
+CMGR: ”REC READ”,”+336290918”,,”99/05/01 14:19:44+04”
OK

This confidential document is the property of WAVECOM and may not be copied or circulated without permission

148

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 158
Creator                         : Microsoft Word
Create Date                     : 25 October 1999 10:37
Title                           : atv81.PDF
Author                          : Unknown
Producer                        : Acrobat PDFWriter 3.02 for Windows
Subject                         :

EXIF Metadata provided by EXIF.tools

Atv81 Atv84

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