BenQ M22, M23, M23G User Guide

M22 / M23 / M23G AT Command User Guide

Version: 1.7.7

Date: 20/09/2006

© 2006 BenQ Inc. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of BenQ Inc.

	Contents
1. INTRODUCTION ---------------------------------------------------------------------			2
1.1 Introduction to Interface between TE and MS ---------------------------------------------			2
1.2 Initial the Test Environment ---------------------------------------------------------------------			5
1.3 How to Handle SMS messages -----------------------------------------------------------------			5
2. IMPLEMENTED AT COMMANDS FOR MS--------------------------------			11
2.1 Commands specified by GSM REC.27.07 --------------------------------------------------			11
2.1.1 General Commands---------------------------------------------------------------------------------------			11
Request manufacturer identification +CGMI-----------------------------------------------------------------------------			11
Request model identification +CGMM ------------------------------------------------------------------------------------			11
Request revision identification +CGMR-----------------------------------------------------------------------------------			12
Request product serial number identification +CGSN ----------------------------------------------------------------			12
Select TE character set +CSCS --------------------------------------------------------------------------------------------			13
Request international mobile subscriber identity +CIMI --------------------------------------------------------------			15
Multiplexing mode +CMUX---------------------------------------------------------------------------------------------------			16
PCCA STD-101[17] select wireless network +WS46 -----------------------------------------------------------------			20
2.1.2 Call control commands -----------------------------------------------------------------------------------			21
Select Type of Address +CSTA---------------------------------------------------------------------------------------------			21
Call mode +CMOD -------------------------------------------------------------------------------------------------------------			22
Hang up call +CHUP ----------------------------------------------------------------------------------------------------------			23
Select bearer service type +CBST -----------------------------------------------------------------------------------------			23
Radio link protocol +CRLP ---------------------------------------------------------------------------------------------------			25
Service reporting control +CR-----------------------------------------------------------------------------------------------			26
Extended error report +CEER-----------------------------------------------------------------------------------------------			27
Cellular result codes +CRC --------------------------------------------------------------------------------------------------			28
Single numbering scheme +CSNS ----------------------------------------------------------------------------------------			30
Dial command D ----------------------------------------------------------------------------------------------------------------			31
2.1.3 Network service related commands-------------------------------------------------------------------			32
Subscriber number +CNUM -------------------------------------------------------------------------------------------------			32
Network registration +CREG ------------------------------------------------------------------------------------------------			34
Operator selection +COPS---------------------------------------------------------------------------------------------------			35
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Facility Lock AT+CLCK -------------------------------------------------------------------------------------------------------		38
Change password +CPWD --------------------------------------------------------------------------------------------------		40
Calling line identification presentation +CLIP	---------------------------------------------------------------------------	41
Call line identification restriction +CLIR-----------------------------------------------------------------------------------		42
Connected line identification presentation +COLP---------------------------------------------------------------------		44
Closed user group +CCUG --------------------------------------------------------------------------------------------------		45
Call forwarding service +CCFC ---------------------------------------------------------------------------------------------		47
Call waiting service +CCWA-------------------------------------------------------------------------------------------------		49
Short string procedure AT+CHLD ------------------------------------------------------------------------------------------		51
Unstructured supplementary service data +CUSD---------------------------------------------------------------------		53
Advice of Charge +CAOC ----------------------------------------------------------------------------------------------------		55
Supplementary service notifications +CSSN ----------------------------------------------------------------------------		56
Preferred PLMN list +CPOL -------------------------------------------------------------------------------------------------		59
List current calls +CLCC------------------------------------------------------------------------------------------------------		61
Read operator names +COPN ----------------------------------------------------------------------------------------------		62
Get neighbor cells +GNC-----------------------------------------------------------------------------------------------------		63
Automatic Time Zone Update +CTZU ------------------------------------------------------------------------------------		64
2.1.4 Mobile control and status commands-----------------------------------------------------------------		65
Phone activity status +CPAS ------------------------------------------------------------------------------------------------		65
Set phone functionality +CFUN ---------------------------------------------------------------------------------------------		66
Enter PIN +CPIN ---------------------------------------------------------------------------------------------------------------		67
Battery charge +CBC ----------------------------------------------------------------------------------------------------------		69
Signal quality +CSQ -----------------------------------------------------------------------------------------------------------		69
Restricted SIM access +CRSM ---------------------------------------------------------------------------------------------		71
Ringer sound level and ringer type select +CRSL ---------------------------------------------------------------------		73
Loudspeaker volume level +CLVL -----------------------------------------------------------------------------------------		73
Mute +CMUT --------------------------------------------------------------------------------------------------------------------		74
Accumulated call meter +CACM -------------------------------------------------------------------------------------------		75
Accumulated call meter maximum +CAMM -----------------------------------------------------------------------------		76
Price per unit and currency table +CPUC --------------------------------------------------------------------------------		77
Call Meter maximum event +CCWE---------------------------------------------------------------------------------------		78
Set Voice Mail Number +CSVM --------------------------------------------------------------------------------------------		79
List all available AT commands +CLAC ----------------------------------------------------------------------------------		80
2.1.5 Commands related with phonebook service--------------------------------------------------------		81
Select phonebook memory storage +CPBS -----------------------------------------------------------------------------		81
Read phonebook entries +CPBR-------------------------------------------------------------------------------------------		82
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Find phonebook entries +CPBF --------------------------------------------------------------------------------------------			84
Write phonebook entry +CPBW --------------------------------------------------------------------------------------------			85
Report Mobile Equipment error +CMEE----------------------------------------------------------------------------------			87
2.1.6 Commands from TIA IS-101 ----------------------------------------------------------------------------			88
Select mode +FCLASS -------------------------------------------------------------------------------------------------------			88
DTMF and tone generation +VTS ------------------------------------------------------------------------------------------			89
Play DTMF tone +WDTMF---------------------------------------------------------------------------------------------------			90
Receive gain selection +VGR -----------------------------------------------------------------------------------------------			91
Transmit gain selection +VGT-----------------------------------------------------------------------------------------------			91
2.2 Commands related to short message service			--------------------------------------------93
2.2.1 General Configuration Commands --------------------------------------------------------------------			97
Select Message Service +CSMS-------------------------------------------------------------------------------------------			97
Preferred Message Storage +CPMS --------------------------------------------------------------------------------------			98
Message Format +CMGF ----------------------------------------------------------------------------------------------------			99
2.2.2 Message Configuration Commands -----------------------------------------------------------------			100
Service Centre Address +CSCA------------------------------------------------------------------------------------------			100
Set Text Mode Parameters +CSMP -------------------------------------------------------------------------------------			101
Show Text Mode Parameters +CSDH ----------------------------------------------------------------------------------			103
Select Cell Broadcast Message Types +CSCB-----------------------------------------------------------------------			104
Save Settings +CSAS -------------------------------------------------------------------------------------------------------			105
Restore Settings +CRES ---------------------------------------------------------------------------------------------------			106
2.2.3 Message Receiving and Reading Commands		----------------------------------------------------	107
New Message Indications to TE +CNMI--------------------------------------------------------------------------------			107
List Messages +CMGL------------------------------------------------------------------------------------------------------			111
Read Message +CMGR ----------------------------------------------------------------------------------------------------			112
NEW Message Acknowledgement to ME/TA +CNMA --------------------------------------------------------------			114
2.2.4 Message Sending and Writing Commands --------------------------------------------------------			115
Send Message +CMGS-----------------------------------------------------------------------------------------------------			115
Send Message from Storage +CMSS-----------------------------------------------------------------------------------			116
Write Message to Memory +CMGW-------------------------------------------------------------------------------------			117
Delete Message +CMGD---------------------------------------------------------------------------------------------------			118
Send Command +CMGC---------------------------------------------------------------------------------------------------			119
2.2.5 PDU Mode--------------------------------------------------------------------------------------------------			120
List Message +CMGL -------------------------------------------------------------------------------------------------------			120
Read Message +CMGR ----------------------------------------------------------------------------------------------------			122
Send Message +CMGS-----------------------------------------------------------------------------------------------------			123
Send Message from Storage +CMSS-----------------------------------------------------------------------------------			124
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Write Message to Memory +CMGW-------------------------------------------------------------------------------------			125
2.3 Commands specified by ITU-T Rec. V25ter as by GSM Rec. 07.07 --------------			125
2.3.1 Generic TA control commands ------------------------------------------------------------------------			125
Repeating a command line (A/)-------------------------------------------------------------------------------------------			125
Reset to default configuration (Z)-----------------------------------------------------------------------------------------			126
Set to factory-defined configuration (&F) -------------------------------------------------------------------------------			127
Request identification information (I) ------------------------------------------------------------------------------------			128
Request manufacturer identification (+GMI)---------------------------------------------------------------------------			129
Request model identification (+GMM)-----------------------------------------------------------------------------------			130
Request revision identification (+GMR)---------------------------------------------------------------------------------			131
Request product serial number identification (+GSN)---------------------------------------------------------------			131
Request complete capabilities list (+GCAP)---------------------------------------------------------------------------			132
Command line termination character (S3) -----------------------------------------------------------------------------			134
Response formatting character (S4)-------------------------------------------------------------------------------------			135
Command line editing character (S5) -----------------------------------------------------------------------------------			135
Command echo (E) ----------------------------------------------------------------------------------------------------------			136
Result code suppression (Q) ----------------------------------------------------------------------------------------------			137
DCE response format (V) --------------------------------------------------------------------------------------------------			138
Result code selection and call progress monitoring control (X) --------------------------------------------------			140
Circuit 109 (Received line signal detector) behavior (&C) ---------------------------------------------------------			141
Circuit 108 (Data terminal ready) behavior (&D)----------------------------------------------------------------------			142
Fixed DTE rate (+IPR) ------------------------------------------------------------------------------------------------------			143
DTE-DCE character framing (+ICF) -------------------------------------------------------------------------------------			144
DTE-DCE local flow control (+IFC) --------------------------------------------------------------------------------------			146
DTE-DCE local rate reporting (+ILRR)----------------------------------------------------------------------------------			148
2.3.2 Call Control commands and response --------------------------------------------------------------			149
Dial (D) --------------------------------------------------------------------------------------------------------------------------			149
Wait for dial tone (W) --------------------------------------------------------------------------------------------------------			152
Select tone dialling (dial modifier) (T) -----------------------------------------------------------------------------------			152
Select pulse dialing (dial modifier) (P) ----------------------------------------------------------------------------------			153
Answer (A) ---------------------------------------------------------------------------------------------------------------------			154
Hook control (H) --------------------------------------------------------------------------------------------------------------			155
Automatic answer (S0)------------------------------------------------------------------------------------------------------			156
Monitor speaker loudness (L) ---------------------------------------------------------------------------------------------			157
2.3.3 Data Compression commands ------------------------------------------------------------------------			158
Data compression (DS) -----------------------------------------------------------------------------------------------------			158
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Data compression reporting (DR) ----------------------------------------------------------------------------------------		159
2.4 Command specified by ITU-T Rec. T.32		-------------------------------------------------- 162
2.4.1 Action commands-----------------------------------------------------------------------------------------		162
Send a page +FDT-----------------------------------------------------------------------------------------------------------		162
Receive a page +FDR-------------------------------------------------------------------------------------------------------		163
Terminate a session +FKS-------------------------------------------------------------------------------------------------		164
Initialize facsimile parameters +FIP -------------------------------------------------------------------------------------		165
2.4.2 DCE Responses ------------------------------------------------------------------------------------------		165
Facsimile Connection +FCO-----------------------------------------------------------------------------------------------		165
Report DCS Frame Information +FCS ----------------------------------------------------------------------------------		166
Report DTS Frame Information +FTC ----------------------------------------------------------------------------------		168
Report DIS Frame Information +FIS-------------------------------------------------------------------------------------		169
Remote Polling Indication +FPO -----------------------------------------------------------------------------------------		169
Report Remote ID +FTI-----------------------------------------------------------------------------------------------------		170
Report Remote ID +FPI-----------------------------------------------------------------------------------------------------		171
Report Remote ID +FCI-----------------------------------------------------------------------------------------------------		171
Report NSC Frames +FNC ------------------------------------------------------------------------------------------------		172
Report NSF Frames +FNF -------------------------------------------------------------------------------------------------		173
Report NSS Frames +FNS-------------------------------------------------------------------------------------------------		173
Report Password +FPW ----------------------------------------------------------------------------------------------------		174
Report Destination Subaddress +FSA ----------------------------------------------------------------------------------		175
Report Polling Address +FPA ---------------------------------------------------------------------------------------------		175
Report T.30 Phase C Page Reception +FPS -------------------------------------------------------------------------		176
Post Page Messages Response +FET ---------------------------------------------------------------------------------		177
Transition to Voice +FVO---------------------------------------------------------------------------------------------------		178
Call Termination Status +FHS --------------------------------------------------------------------------------------------		178
Report Transmit HDLC Frames +FHT ----------------------------------------------------------------------------------		181
Report Received HDLC Frames +FHR ---------------------------------------------------------------------------------		182
2.4.3 Service Commands --------------------------------------------------------------------------------------		183
Service Class +FCLASS----------------------------------------------------------------------------------------------------		183
DCE Capabilities Parameter +FCC--------------------------------------------------------------------------------------		184
Current Session Parameter +FIS-----------------------------------------------------------------------------------------		185
Current Session Result +FCS---------------------------------------------------------------------------------------------		186
Local Facsimile Station ID String +FLI----------------------------------------------------------------------------------		186
Local polling ID String +FPI------------------------------------------------------------------------------------------------		187
Non-Standard Frame FIF Octet String +FNS -------------------------------------------------------------------------		188
Indicate Document to Poll +FLP ------------------------------------------------------------------------------------------		189
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Request to Poll +FSP -------------------------------------------------------------------------------------------------------			190
Capability to Receive +FCR -----------------------------------------------------------------------------------------------			190
HDLC Frame Reporting +FBU --------------------------------------------------------------------------------------------			191
Negotiation Reporting +FNR ----------------------------------------------------------------------------------------------			192
Address and Polling Capabilities +FAP---------------------------------------------------------------------------------			193
Address and Polling Frames/Subaddress +FSA ---------------------------------------------------------------------			193
Address and Polling Frames/Polling Address +FPA ----------------------------------------------------------------			194
Address and Polling Frames/Password +FPW -----------------------------------------------------------------------			195
Procedure Interrupt Enable +FIE -----------------------------------------------------------------------------------------			196
Page Status +FPS -----------------------------------------------------------------------------------------------------------			196
Copy Quality Checking +FCQ ---------------------------------------------------------------------------------------------			198
Receive quality Thresholds +FRQ ---------------------------------------------------------------------------------------			199
Adaptive Answer +FAA -----------------------------------------------------------------------------------------------------			199
DTE Phase C Response Timeout +FCT -------------------------------------------------------------------------------			200
Call Termination Status +FHS --------------------------------------------------------------------------------------------			201
ECM Retry Count +FRY ----------------------------------------------------------------------------------------------------			201
Minimum Phase C Speed +FMS -----------------------------------------------------------------------------------------			202
Inactivity Timeout +FIT------------------------------------------------------------------------------------------------------			203
Minimum Phase C Speed +FMS -----------------------------------------------------------------------------------------			204
Report Buffer Size +FBS ---------------------------------------------------------------------------------------------------			204
Packet Protocol Control +FPP --------------------------------------------------------------------------------------------			205
Data Bit Order +FBO --------------------------------------------------------------------------------------------------------			205
Phase C Received EOL Alignment +FEA------------------------------------------------------------------------------			206
Image Data Format Conversion +FFC----------------------------------------------------------------------------------			207
Modem ID +FMI---------------------------------------------------------------------------------------------------------------			208
Model ID +FMM---------------------------------------------------------------------------------------------------------------			208
Revision ID +FMR------------------------------------------------------------------------------------------------------------			209
Flow Control +FLO -----------------------------------------------------------------------------------------------------------			209
2.4.4 Examples (WinFax Pro)---------------------------------------------------------------------------------			210
DCE Initialization -------------------------------------------------------------------------------------------------------------			210
Send One Page ---------------------------------------------------------------------------------------------------------------			210
Receive One Page -----------------------------------------------------------------------------------------------------------			211
2.5 GPRS related commands----------------------------------------------------------------------			213
2.5.1 Define PDP Context +CGDCONT --------------------------------------------------------------------			213
2.5.2 Quality of Service Profile (Request) +CGQREQ--------------------------------------------------			215
2.5.3 Quality of Service Profile (Minimum acceptable) +CGQMIN ----------------------------------			217
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2.5.4 GPRS attach or detach +CGATT---------------------------------------------------------------------			220
2.5.5 PDP context activate or deactivate +CGACT		------------------------------------------------------	221
2.5.6 Enter data state +CGDATA ----------------------------------------------------------------------------			223
2.5.7 Show PDP address +CGPADDR---------------------------------------------------------------------			225
2.5.8 Automatic response to a network request for -------PDP context activation +CGAUTO			227
2.5.9 Manual response to a network request for PDP -------------context activation +CGANS			229
2.5.10 GPRS mobile station class +CGCLASS (GPRS -----------------------------------------only)			231
2.5.11 Packet Domain event reporting +CGEREP ------------------------------------------------------			233
2.5.12 RS network registration status +CGREG ---------------------------------------------------------			235
2.5.13 Select service for MO SMS messages +CGSMS-----------------------------------------------			237
2.5.14 Request GPRS service ‘D’----------------------------------------------------------------------------			238
2.5.15 Automatic response to a network request for ---------------PDP context activation ‘S0’			240
2.5.16 Manual acceptance of a network request for -----------------PDP context activation ‘A’			241
2.5.17 Manual rejection of a network request for PDP ---------------------context activation ‘H’			242
2.6 Module-specific AT Commands -------------------------------------------------------------			243
2.6.1 Power Off $POWEROFF -------------------------------------------------------------------------------			243
2.6.2 Periodic Signal Quality Report $CSQ----------------------------------------------------------------			243
2.6.3 Audio Path $AUPATH -----------------------------------------------------------------------------------			244
2.6.4 Audio Gain $AUGAIN------------------------------------------------------------------------------------			246
2.6.5 Audio Mute $AUMUTE ----------------------------------------------------------------------------------			247
2.6.6 Audio Volume $AUVOL ---------------------------------------------------------------------------------			248
2.6.7 Audio AEC $AUAEC -------------------------------------------------------------------------------------			249
2.6.8 Audio Downlink FIR $AUFIR---------------------------------------------------------------------------			251
2.6.9 Audio Uplink FIR $UPFIR ------------------------------------------------------------------------------			252
2.6.10 Audio VAD $AUVAD -----------------------------------------------------------------------------------			253
2.6.11 Audio ABS $AUABS------------------------------------------------------------------------------------			254
2.6.12 Audio CONTFLT $AUCONTFLT --------------------------------------------------------------------			255
2.6.13 Audio AUATT $AUATT --------------------------------------------------------------------------------			256
2.6.14 Audio SMOOTH $AUSMOOTH ---------------------------------------------------------------------			257
2.6.15 Audio LEVELMAX $AULEVELMAX----------------------------------------------------------------			258
2.6.16 Audio FIL $AUFIL ---------------------------------------------------------------------------------------			259
2.6.17 Audio MUT $AUMUT-----------------------------------------------------------------------------------			260
2.6.18 Audio Extra Gain $EXGAIN --------------------------------------------------------------------------			261
2.6.19 Audio Output Bias $OPBIAS -------------------------------------------------------------------------			262
2.6.20 SIM Ready Notification $SRN------------------------------------------------------------------------			263
2.6.21 I/O12 Setting $VCD-------------------------------------------------------------------------------------			264
2.6.22 Set duration to clip data on incoming call $TRING ---------------------------------------------			265
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2.6.23 Convert UNICODE to GB2312 $UNI2GB---------------------------------------------------------			266
2.6.24 Convert GB2312 to UNICODE $GB2UNI---------------------------------------------------------			266
2.6.25 Play a call tone +GDT----------------------------------------------------------------------------------			267
2.6.26 Hardware power off command $HRST ------------------------------------------------------------			268
2.6.27 Disable Deep Sleep Mode $NOSLEEP -----------------------------------------------------------			269
2.6.28 Low Voltage Detection $LVD ------------------------------------------------------------------------			269
2.6.29 Select SIM Type Command $SIMTYPEOPT ----------------------------------------------------			271
2.7 Proprietary AT Commands--------------------------------------------------------------------			273
2.7.1 Call progress information %CPI-----------------------------------------------------------------------			273
2.7.2 Dynamic Multiband: %BAND --------------------------------------------------------------------------			278
2.7.3 GPRS Attach/Detach Mode: %CGAATT -----------------------------------------------------------			278
2.7.4 Flash Memory Check $FSCHK -----------------------------------------------------------------------			279
2.7.5 Play Tone on Loud Speaker $CLSL -----------------------------------------------------------------			280
2.7.6 Play Tone on Speaker $CSSL ------------------------------------------------------------------------			281
2.7.7 Get PIN1, PIN2, PUK1, PUK2 remaining number %PVRF ------------------------------------			282
2.7.8 SIM Authentication $SIMAUTH -----------------------------------------------------------------------			282
2.7.9 RTC DATE $DATE ---------------------------------------------------------------------------------------			282
2.7.10 RTC Time $TIME----------------------------------------------------------------------------------------			283
2.7.11 Green LED Setting $GLED ---------------------------------------------------------------------------			284
2.7.12 SIM card test $SIMTEST------------------------------------------------------------------------------			285
2.8 M2M: Machine to Machine --------------------------------------------------------------------			287
2.8.1 PCO string for context activation %CGPCO -------------------------------------------------------			287
2.8.2 TCP/IP Timeout for M2M packet $TIMEOUT------------------------------------------------------			287
2.8.3 TCP/IP Remote destination Server information $DESTINFO ---------------------------------			288
2.8.4 Dial-up M2M (TPC/IP) -----------------------------------------------------------------------------------			289
2.8.5 EXAMPLE --------------------------------------------------------------------------------------------------			290
2.9 STK: SIM Application Toolkit-----------------------------------------------------------------			291
2.9.1 Configuration for SIM application toolkit %SATC-------------------------------------------------			291
2.9.2 Set SAT set & response format %SATM -----------------------------------------------------------			292
2.9.3 Send SAT envelope command %SATE ------------------------------------------------------------			292
2.9.4 Send SAT command response %SATR ------------------------------------------------------------			294
2.9.5 SAT command notify %SATN -------------------------------------------------------------------------			296
2.9.6 SAT command response %SATI ---------------------------------------------------------------------			297
2.9.7 Terminate SAT command or session %SATT ----------------------------------------------------			301
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2.9.8 EXAMPLE --------------------------------------------------------------------------------------------------	301
2.10 ME Lock -------------------------------------------------------------------------------------------	304
2.10.1 Read/Write Personalization file----------------------------------------------------------------------	304
Description ---------------------------------------------------------------------------------------------------------------------	305
Defined values ----------------------------------------------------------------------------------------------------------------	305
Examples -----------------------------------------------------------------------------------------------------------------------	306
2.11 Error Message-----------------------------------------------------------------------------------	307
2.11.1 Mobile Equipment error result code +CME ERROR: <unsolicited><p> ------------------	307
2.11.2 Message Service Failure Result Code +CMS ERROR: <unsolicited><p>---------------	309
2.11.3 Extended Error result code +EXT ERROR: <unsolicited><p> ------------------------------	311
2.11.4 UMTS specific cause values for call control +CEER: <unsolicited><p> ------------------	312

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	AT Command User Manual	ix Version: 1.7.7 – 20/09/2006

M32 / M32A / M22 / M23 AT Command User Manual Revision History

Version	Content	Author	Date
1.0	Official Release	Andy T Huang	02/12/2003
1.1	Add +VGT, +VGR, +CLSL,	Andy T Huang	24/12/2003
	Add AT$AUPATH=4,1 AT$AUPATH=5,1
1.2	Merge M32, M32A, M22 user manual	Jamie CW Wang	06/01/2004
1.3	Add AT+WDTMF, $SRN, $VCD, $TRING	Jamie CW Wang	09/02/2004
	Add AT$UNI2GB, $GB2UNI	Eason Liu	13/02/2004
	Add AT+GDT, modify AT+CMGR	Ken Chang	03/03/2004
1.4	Add AT$AUVAD, $AUABS, $AUFIR	William Hsieh	25/03/2004
1.5	Add AT$HSRT, modify $UNI2GB, $GB2UNI	Kelvin Chan,	02/04/2004
		Jamie CW Wang
1.6.0	Add AT$AUFIR, AT$AUVAD, AT$AUABS,	William Hsieh	28/05/2004
	AT$AUCONTFLT, AT$AUATT,
	AT$AUSMOOTH, AT$AULEVELMAX,
	AT$AUFIL, AT$AUMUT
1.70	Add AT$NOSLEEP. Modify AT+CIMI, +GNC,	Jamie CW Wang	19/07/2004
	+WDTMF, +CNUM, +COPS, +VTS,
	$POWEROFF,
1.7.1	Modify +CMS ERROR Code	Jamie CW Wang	03/08/2004
1.7.2	Modify +CIMI, +CNUM	Jamie CW Wang	09/09/2004
1.7.3	Modify AT+FCLASS. Add M2M and STK	Jamie CW Wang	21/06/2004
	commands
1.7.4	Add AT+CTZU, $EXGAIN, $OPBIAS, $UPFIR,	Jamie CW Wang	16/08/2005
	$LVD and $SIMTEST.
	Add ME Lock commands.
	Add +EXT ERROR result code.
1.7.5	Modify AT+CMUX? and AT+CR only for CSD	Jamie CW Wang	14/10/2005
	(data call)
1.7.6	Modify AT+FLO=1 to AT+FLO=2.	Jamie CW Wang	02/01/2006
	Add +CEER information
	Add to support M23.
1.7.7	Add $SIMTYPEOPT	Yahan Hsieh	20/09/2006

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	AT Command User Manual	1	Version: 1.7.7 – 20/09/2006

1. Introduction

1.1 Introduction to Interface between TE and MS

In order to communicate each other between TE and MS, we must use AT commands. Figure 1.1 illustrates the interface. In section 2, we will divide the content into ten subsections. They are about SIM, list management, mobility management, call control, supplementary service, short message, cell broadcast, base-band and the other service.

AT COMMAND

TE	MS
	Figure 1.1
Explanation
ME	Mobile equipment
MS	Mobile station. Basically, a mobile station is mobile
	equipment with a SIM card.
TE	Terminal Equipment that is the same as the controller in
	this case.

Getting started

For testing AT commands, the MS can be connected to any computer environment, as long as it has a V.24/V.28 serial interface. The commands can be issued with, for example, HyperTerminal in Microsoft Windows or other emulator programs.

Syntax description

The section gives a brief description of the syntax used for the command set. The MS may echo characters received, depending on the setting of the command E. As a default, echo is enabled, and characters are echoed at the same rate, parity, and format as received.

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The character defined by parameter S5 (default, BS, IRA 8) is interpreted as request from the TE to delete the previous character.

<CR>	Carriage return character, whose value is specified by
	command S3, default IRA 13.
<LF>	Line feed character, whose value is specified by
	command S4, default IRA 10.
<…>	The name enclosed in angle brackets is a syntactical
	element. The brackets do not appear in the command
	line.
[…]	Strings enclosed in square brackets are optional items
	(sub-parameters). The brackets do not appear in the

command line.

Other characters, including ‘?’,’=’, parentheses, etc, appear in commands and response as written.

AT command syntax

A command line is made up of three elements: the prefix, the body and the termination character. The command line prefix consists of the characters ‘AT’.

MS supports a set of commands referred to as basic syntax commands, and a set of extended syntax commands, the latter prefixed with a plus sign (+).

Basic syntax command

The format of basic syntax commands, except for the command D, is as follows:

<name>[<value>]

Example:	ATV1<CR> (set text form result codes)
	<CR><LF>OK<CR><LF>(response)
Extended syntax command
+<name>[=<value>]
Example:	AT+CMUT=0<CR>( the representation of signal strength)

	<CR><LF>OK<CR><LF>(response)
Test command syntax
+<name>=?
Example:	ATS3=?<CR>(show supported S3 values)
	<CR><LF>S3: (0-127)<CR><LF>
	<CR><LF>OK<CR><LF>

Read command syntax

+<name>?

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Example:	AT+CACM?<CR>(show current accumulated call meter value)
	<CR><LF>+CACM: ”0”<CR><LF>(response)

<CR><LF>OK<CR><LF>

If the indicated name is not recognized, an Error code is issued.

AT response syntax

The default response is text mode that is shown below. See the command V for further details. The format of a response is as follows:

<CR><LF>[<response>]<CR><LF> The <response> can be:

Basic format result code, such as OK.

Extended syntax result code, prefixed with a plus sign (+) : +<name>: <value>

The result codes are separate by commas if it’s included several values. The <value> followed by the colon is separated by a space. It is also possible that result codes have no value. Unlike basic format result codes, extended syntax result codes have no numeric equivalent, and are always issued in alphabetic form.

There are two types of result code responses:

Final result code

A final result code indicates to the TE that execution of the command is completed and another command may be issued.

If you typed an implemented AT command, you should get the result code OK.

If you typed an AT command that was not implemented, or which had the wrong parameter or syntax, you will get the result code ERROR or else, for example, +CME ERROR followed by an error code.

Unsolicited result code

Unsolicited result codes, such as RING, indicate the occurrence of an event not directly associated with a command being issued from TE.

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1.2 Initial the Test Environment

Initial the HyperTerminal.

-Start HyperTerminal -Name a new connection -Select the connection port

-Initial the connection port with 115200 bps and none flow control

Initial the MS.

-Put the SIM card into ME and power on the ME. -Start all of AT Commands with “AT+CFUN=1” -Camp on the cell with “AT+COPS=0”

1.3 How to Handle SMS messages

This section gives examples of the AT commands for sending and receiving SMS (Short Messages Service) messages.

Whatever the destination of the SMS message, the message is always sent via a Service Center (SC). One of the SC’s jobs, among others, is to forward SMS messages to the destination, or save the SMS until the receiving MS becomes available in the GSM network. The message can be stored at the SC up to a maximum time period decided by the sender. Also the message is “time stamped” at the SC and its contents are interpreted according to choices made by the sender.

The conclusion of this is that an SMS message, along with other information decided upon by the sender, always contains 2 addresses. First the Service Center Address (SCA), and then the destination address. Also, other useful information is added at the SC.

Setting Service Center Address (SCA)

The service center address is usually stored on the SIM card, but it can be set manually by using the AT command AT+CSCA. Note that the SCA must be given in the international phone number format.

Format of an SMS message

It is important to realize that SMS messages could be sent in two modes: text mode and PDU mode, which is described in detail in the GSM specifications 3GPP 27.005, 3GPP 23.040 and 3GPP 23.038.

Because text mode is followed the format of input parameters, it is clear to execute the commands. We now focus on the introduction of PDU mode.

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What is PDU mode? First a PDU is a Service Center Address (SCA) followed by a Transport Protocol Data Unit (TPDU). There are several formats of TPDU, but we now only use two forms here:

SMS-SUBMIT TPDU	Outgoing SMS messages “submitted” to the SM from the
	originating MS.
SMS-DELIVER TPDU	Incoming SMS messages “delivered” by the SC to final
	destination MS.

Therefore we have the following general format of an SMS message:

PDU=SCA+TPDU

The TPDU format is a hexadecimal encoded binary format, which means that 2 hexadecimal digits represent a byte or an octet. In general there is a header part of the TPDU, containing the control information, and the follows user data, which can be any type of information (default 7-bit GSM alphabet, 8-bit ISO 8859-1 alphabet or even 8-bit data).

Let’s start with some examples of PDU SMS messages using an SMS-SUBMIT type TPDU. For simplicity’s sake we will send a text message that reads “TEST”, using the default GSM 7-bit alphabet.

Here is the message written out in full:

0011000B916407861582F50000A704D4E2940A

Equivalently, we could write this as:

07916407058099F911000B916407861582F50000A704D4E2940A

These two have one difference, and that is how we have chosen to describe the SCA. In the first SMS we use:

00		This is a valid SCA with a length equal to zero. Therefore we are
		using the default SCA given by the SIM card, or as given by the
		AT command AT+CSCA.
	07916407058099F9	Here is the SCA hex encoded binary. The first octet (07) is a
		length indicator, in this case there are 7 octets to follow. The
		second octet (91) tells us about the numbering plan and type of
		number of the coming address. In this case the 91 says that the
		address is in international phone number format. Then follows the
		actual service center address (6407058099F9). Every pair of
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digits is swap, that there is an odd number of digits in the phone number and therefore, a half byte of fill digits is required at the end (hence the hexadecimal F9). The exact meaning of all the octets and fields in the SCA address is described in detail in 3GPP 23.040.

Let’s analyze the message by breaking it down into its component parts:

11 This octet contains many 1-bit and 2-bit fields that are described in detail in GSM 03.40. These include:

-TP-MTI : message type indicator

-TP-RD : more messages waiting indicator

-TP-VPF : validity period format

-TP-SRR : status report request flag

-TP-UDHI : user data header indicator flag

-TP-RP : reply path setting flag

00		This octet is only associated with the 8-bit field TP-MR and is
		basically a message reference number, which can be chosen by
		the user. Here we set the message reference number to zero
		(00HEX).
	0B916407861582F5	This is the destination address (TP-DA). The format of the
		address field is given in detail in 3GPP 23.040. It is similar to the
		format of the SCA, but now it refers to the phone number of the
		receiving MS. The first octet (0B) is a phone number length
		indicator. In this case the phone number of the destination MS
		consists of 11 digits. The second octet (91) is the numbering
		plan and type of number of the coming address. The address is
		in international phone number format. Then follows the mobile
		number with every pair of digits in reverse order, and because
		we have an odd number of digits a half octet of fill bits are
		required (hence the F5HEX).
00		This is the protocol ID (TP-PID) which refers to a possible higher
		level protocol being used or indicates inter-working with certain
		types of telematic devices. This can usually be left set to zero.
00		This is the data coding scheme field (TP-DCS) that is described
		in detail in 3GPP 23.038. Basically this octet tells us what kind of
		user data is being sent. For instance, if we are using a 7-bit or
		8-bit alphabet, or we are sending 8-bit data. It also informs the
		receiving MS about the class of the SMS message, which tells it
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	how to handle and store the incoming SMS message.
A7	This is the validity period (TP-VP). The validity period is how
	long the SC will store the SMS, waiting for the receiving MS to
	come in contact with the GSM network. If the SMS is not
	received by the destination MS within this time, then the
	message will be discarded. 3GPP 23.040 describes this field in
	detail.
04	TP-UDL. This is the length of the user data. It is given in septets,
	if TP-DCS describes the message as using the default 7-bit
	GSM alphabet, or octets otherwise.
D4E2940A	Finally we come to the user data (TP-UD). This is 4-septets
	long, defined above in TP-DCS and TP-UDL. The message
	reads “TEST”. Note the one character is not represented by one

octet, but by a septet (7-bits), and therefore it can be quite complicated to decipher a GSM text SMS by looking at the PDU. 3GPP specification 23.038 describes in detail how the 7-bit GSM alphabet works and how to convert from the hexadecimal to the characters. You may know that one can send 160 characters in an SMS message. This is only possible in 140 bytes using a 7-bit alphabet

Before we finish we should also take a look at the TPDU of SMS-DELIVER type. This is the PDU one would see when reading an SMS that has been sent to the module.

07916407058099F9040B916407861582F500009910702123040004D4E2940A

	The TPDU breaks down as follows:
04		TP-MTI, TP-MMS, TP_SRI, TP-UDHI, TP-RP
	0B916407861582f5	This is the originating address (TP-OA)
00		TP-PID
00		TP-DCS
99107021230400		This is the service center time stamp. Every pair of digits are
		reversed. This time stamp reads, in octets from left to right: the
		date 990107 (year, month, day), the time 123240 (hours,
		minutes, seconds). Finally the last octet is a reference for the
		difference in time between local time and GMT.
04		TP-UDL
	D4E2940A	TP-UD
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Sending SMS messages

The AT command to use is AT+CMGS. Notice that this is the length of the TPDU and not the PDU, so it does not include the SCA. The length of the message is 4 octets and the message reads “TEST”.

Example1:

A user would like to send a GSM 7 bit alphabet text “TEST” to number “0910123456”, he may use

AT+CMGS=17<CR> >0011000A8190012143650000A704D4E2940A<CTRL-Z> +CMGS:122 ( depends on the MS)

OK

Reading SMS message from storage

To read SMS messages from storage, the AT commands AT+CMGL and AT+CMGR should be used.

Example1:

AT+CMGR=1 +CMGR: 1,,23

07916407058099F9040B916407950303F100008921222140140004D4E2940A OK

Example2:

AT+CMGL=4 The 4 here means “all messages”. +CMGL: 1,1,23

07916407058099F9040B916407950303F100008921222140140004D4E2940A +CMGL: 2,1,26 07916407058099F9040B916407950303F10000892122216000000841E190583411E91 +CMGL: 3,1,27

07916407058099F9040B916407950303F10000892122217064000941E19058341E9149 OK

Deleting SMS messages

To delete an SMS message from the selected <mem1>, use the AT+CMGD command.

Example1:

AT+CMGD=1

OK

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Memory management

Once both SM are full, then the module will receive no new messages and SMS messages will be buffered in the Service Center until the following happens:

zThe validity period of the message expires. The validity period is set by TP-VP.

zA message is deleted by using AT+CMGD. An empty memory position becomes

available and the module can receive a new message.

There are other ways to control the storage of SMS messages. In the TPDU field, TP-DCS, one can set the class of the SMS message. Basically the different SMS classes are as follows:

Classless SMS	(TP-DCS=00hex). This is usually the type sent by a mobile telephone.
	They are stored in the available memory.
Class 0 SMS	(TP-DCS=F0hex). These are not stored anywhere, but are sent
	directly to the telephone display. Since there is no display one can
	forward the messages to the TE by means of the AT command
	setting AT+CNMI=3,2
Class 1 SMS	(TP-DCS=F1hex). These are directed specifically to ME if there is a
	memory storage available, otherwise it will be stored in SM.
Class 2 SMS	(TP-DCS=F2hex). These are directed specifically to SM.
Class 3 SMS	(TP-DCS=F3hex). These messages shall normally be transferred to
	the terminal equipment or application, if requested to do so, This is
	controlled by the AT command AT+CNMI

For a deeper explanation and more information regarding the different SMS classed and their use see the 3GPP specification 23.038.

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2. Implemented AT commands for MS

2.1 Commands specified by GSM REC.27.07

2.1.1 General Commands

Request manufacturer identification +CGMI

Table: +CGMI parameter command syntax

Command	Possible response(s)
+CGMI	<manufacturer>
	+CME ERROR: <err>

Description

Read handset or model’s manufacturer’s ID.

Defined values

<manufacturer> : total number of characters shall not exceed 2048.

Informative examples

-Initial the HyperTerminal -Initial the MS

-AT Command AT+CGMI<CR> BenQ

Request model identification +CGMM

Table: +CGMM parameter command syntax

Command	Possible response(s)
+CGMM	<model>
	+CME ERROR: <err>

Description

Read model information which determined by ME manufacturer.

Defined values

<model id>: string type

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Informative examples

-Initial the HyperTerminal -Initial the MS without SIM card -AT Command

AT+CGMM <CR> <model>

Request revision identification +CGMR

Table: +CGMR parameter command syntax

Command	Possible response(s)
+CGMR	<revision>
	+CME ERROR: <err>

Description

Read revision of ME. It may include software and hardware revision.

Defined values

<revision >: information text

Informative examples

-Initial the HyperTerminal -Initial the MS without SIM card -AT Command

AT+CGMR<CR> SW ver: 1.0.9 HW ver: 1.0 FS ver: 0.4.8.0

Build Date: 2003/10/24

Build Time: 14:17:57

Request product serial number identification +CGSN

Table: +CGSN parameter command syntax

		Command	Possible response(s)
		+CGSN	<sn>
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+CME ERROR: <err>

Description

Read serial number identification which determined by ME manufacturer.

Defined values

<sn >: total number of characters shall not exceed 2048 characters.

Informative examples

-Initial the HyperTerminal -Initial the MS without SIM card -AT Command

AT+CGSN<CR>

IMEI: 44601919750759-5 IMEISV: 44601919750759-00

OK

Select TE character set +CSCS

Table: +CSCS parameter command syntax

Command	Possible response(s)
+CSCS=[<chset>]
+CSCS?	+CSCS: <chset>
+CSCS=?	+CSCS: (list of supported <chset>s)

Description

Set command informs TA of which character set “<chset>” is used by the TE. TA is then able to convert character strings correctly between TE and ME character sets.

When TA-TE interface is set to 8-bit operation and used TE alphabet is 7 bit, the highest bit shall be set to zero.

Read command returns the current setting and test command displays conversion schemes implemented in the TA.

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Defined values

<chset>: string type

Command	Possible response(s)
“GSM”(default)	GSM default alphabet
“HEX”	Character strings consist only of hexadecimal numbers
	from 00 to FF;e.g. “032FE6” equals three 8-bit
	characters with decimal values 3,47 and 230;no
	conversions to the original ME character set shall be
	done.
“IRA”	International reference alphabet
“UCS2”	16-bit universal multiple-octet coded character set;
	UCS2 character strings are converted to hexadecimal
	numbers from 0000 to FFFF. ; e.g. “004100620063”
	equals three 16-bit characters with decimal values 65,98
	and 99.
“8859-1”	ISO 8859 Latin 1 character set
“PCCP437”	PC character set Code Page 437
“PCDN”	PC Danish/Norwegian character set

Informative examples

-Initial the HyperTerminal -Initial the MS without SIM card -AT Command

1.

AT+CSCS=? <CR>

+CSCS: "GSM","IRA","PCCP437","PCDN","8859-1","HEX","UCS2" OK

2.

AT+CSCS= “GSM” +CSCS: “GSM” OK

AT+CSCS? <CR> +CSCS: “GSM” OK

3.

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AT+CSCS=”UCS2” OK

AT+CPBS? +CPBS: "SM",7,100 OK

AT+CPBR=1,3

+CPBR: 1,"12345",129,"00520061006E00640079" +CPBR: 2,"2",129,"004300610020"

+CPBR: 3,"3",129,"00450020" AT+CSCS=”IRA”

OK AT+CPBR=1,3

+CPBR: 1,"12345",129,"Randy" +CPBR: 2,"2",129,"Ca " +CPBR: 3,"3",129,"E "

OK

Request international mobile subscriber identity +CIMI

Table: +CIMI parameter command syntax

Command	Possible response(s)
+CIMI	<IMSI>
	OK
	+CME ERROR:<err>

Description

Execution command causes the TA to return <IMSI>, which is intended to permit the TE to identify the individual SIM that is attached to ME.

Defined values

<IMSI>: International Mobile Subscriber Identity (string without double quotes)

Informative examples

-Initial the HyperTerminal -Initial the MS

-AT Command

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AT+CIMI

466880100493652

OK

Multiplexing mode +CMUX

Table: +CMUX parameter command syntax

Command	Possible response(s)
+CMUX=<mode>[,<subse	+CME ERROR:<err>
t>[,<port_speed>[,<N1>[,
<T1>[,<N2>[,<T2>[,<T3>[,
<k>]]]]]]]]
+CMUX?	OK
+CMUX=?	+CMUX: (list of supported <mode>s), (list of
	supported <subset>s), (list of supported
	<port_speed>s), (list of supported <N1>s), (list
	of supported <T1>s), (list of supported
	<N2>s), (list of supported <T2>s), (list of
	supported <T3>s), (list of supported <k>s)

Description

This command is used to enable/disable the GSM 07.10 multiplexing protocol control channel. Refer to subclause 9.2 for possible <err> values. The AT commands sets parameters for the Control Channel. If the parameters are left out, the default value is used.

Read command returns the current mode and the settings.

Test command returns the supported modes and parameters.

It is recommended that the ME/TA/TE should autobaud to the +CMUX command up to and including an interface speed of 9600 bits/s.

The OK or +CME ERROR: <err> response is returned at the speed of the +CMUX command prior to entering <mode>.

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It is recommended that whenever the multiplexer control channel is released the ME/TA/TE should assume an interface rate of up to and including 9600 bits/s for auto baud purposes irrespective of any previous higher speed having been selected.

If a +CMUX command is issued whilst in any multiplexer mode then that +CMUX command shall be ignored and the ME/TA shall return an +CME ERROR: <err> response.

Defined values

<operation> ( multiplexer Transparency Mechanism) 0 Basic option (not support in current version) 1 Advanced option

<subset>:

This parameter defines the way in which the multiplexer control channel is set up. A virtual channel may subsequently be set up differently but in the absence of any negotiation for the setting of a virtual channel, the virtual channel shall be set up according to the control channel <subset> setting.

0UIH frames used only.

1UI frames used only.

2I frames used only. Default value:0

<port_speed> (transmission rate):

19600 bits/s

219200 bits/s

338400 bits/s

457600 bits/s

5115200 bits/s

6230400 bits/s

<N1> (maximum frame size): 1-32768

Default Value: 31 (64 if Advanced option is used)

<T1> (acknowledgement timer in units of ten milliseconds): 1-255, where 10 is default (100 ms)

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<N2> (maximum number of re-transmissions): 0-100, where 3 is default

<T2> (response timer for the multiplexer control channel in units of ten milliseconds): 2-255, where 30 is default (300ms)

NOTE: T2 must be longer than T1.

<T3> (wake up response timer in seconds): 1-255, where 10 is default

<k> (window size, for advanced operation with Error Recovery options): 1-7, where 2 is default

Informative examples

-Initial the HyperTerminal -Initial the MS

-AT Command

AT+CMUX=?

+CMUX: (1),(0),(1-5),(10-100),(1-255),(0-100),(2-255),(1-255),(1-7) OK

Mux Example

Request: 92/8/3 05:38:36.812492864 (+300.4480146000 seconds)

41 54 45 30 51 30 56 31 0D

ATE0Q0V1

Normal AT command mode at initial

Answer: 92/8/3 05:38:36.822507464 (+0.0100146000 seconds)

	0D 0A 4F 4B 0D 0A		..OK..
	The response of ATE0Q0V1
	Request: 92/8/3 05:38:37.583617064 (+0.5908614000 seconds)
	41 54 2B 43 4D 55 58 3D 31 2C 30 2C 35 0D		AT+CMUX=1,0,5.
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