BenQ M32 User Manual

BenQ M32 GSM / GPRS Wireless Module

AT Command List

AT Command Rev. 0.5.0 Jun. 2004

COPYRIGHT BENQ Corporation This document contains proprietary technical information which is the property of BenQ Corporation and is issued in strict confidential and shall not be disclosed to others parties in whole or in parts without written permission of BenQ Corporation The documents contain information on a product, which is under development and is issued for customer evaluation purposes only. BENQ may make changes to product specifications at any time, without notice.

BenQ Corporation.

Networking & Communications BG

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http://www.benq.com

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-----------------------------------------------------------------------------------------------------------22 Select bearer service type +CBST-----------------------------------------------------------------------------------------23 Radio link protocol +CRLP ---------------------------------------------------------------------------------------------------24 Service reporting control +CR-----------------------------------------------------------------------------------------------25 Extended error report +CEER-----------------------------------------------------------------------------------------------27 Cellular result codes +CRC--------------------------------------------------------------------------------------------------27 Single numbering scheme +CSNS-----------------------------------------------------------------------------------------29 Dial command D ----------------------------------------------------------------------------------------------------------------30

2.1.3 Network service related commands--------------------------------------------------------------------31

Subscriber number +CNUM -------------------------------------------------------------------------------------------------31 Network registration +CREG ------------------------------------------------------------------------------------------------32 Operator selection +COPS---------------------------------------------------------------------------------------------------34 Facility Lock AT+CLCK--------------------------------------------------------------------------------------------------------36 Change password +CPWD --------------------------------------------------------------------------------------------------39

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Calling line identification presentation +CLIP ---------------------------------------------------------------------------39 Call line identification restriction +CLIR-----------------------------------------------------------------------------------41 Connected line identification presentation +COLP --------------------------------------------------------------------42 Closed user group +CCUG --------------------------------------------------------------------------------------------------44 Call forwarding service +CCFC ---------------------------------------------------------------------------------------------45 Call waiting service +CCWA-------------------------------------------------------------------------------------------------47 Short string procedure AT+CHLD------------------------------------------------------------------------------------------50 Unstructured supplementary service data +CUSD --------------------------------------------------------------------52 Advice of Charge +CAOC ----------------------------------------------------------------------------------------------------53 Supplementary service notifications +CSSN----------------------------------------------------------------------------54 Preferred PLMN list +CPOL -------------------------------------------------------------------------------------------------57 List current calls +CLCC------------------------------------------------------------------------------------------------------58 Read operator names +COPN----------------------------------------------------------------------------------------------60 Get neighbor cells +GNC-----------------------------------------------------------------------------------------------------61

2.1.4 Mobile control and status commands------------------------------------------------------------------61

Phone activity status +CPAS------------------------------------------------------------------------------------------------61 Set phone functionality +CFUN---------------------------------------------------------------------------------------------62 Enter PIN +CPIN----------------------------------------------------------------------------------------------------------------64 Battery charge +CBC----------------------------------------------------------------------------------------------------------65 Signal quality +CSQ------------------------------------------------------------------------------------------------------------66 Restricted SIM access +CRSM ---------------------------------------------------------------------------------------------67 Ringer sound level and ringer type select +CRSL ---------------------------------------------------------------------69 Loudspeaker volume level +CLVL -----------------------------------------------------------------------------------------70 Mute +CMUT---------------------------------------------------------------------------------------------------------------------70 Accumulated call meter +CACM--------------------------------------------------------------------------------------------72 Accumulated call meter maximum +CAMM -----------------------------------------------------------------------------72 Price per unit and currency table +CPUC--------------------------------------------------------------------------------73 Call Meter maximum event +CCWE---------------------------------------------------------------------------------------74 Set Voice Mail Number +CSVM --------------------------------------------------------------------------------------------75 List all available AT commands +CLAC ----------------------------------------------------------------------------------76

2.1.5 Commands related with phonebook service---------------------------------------------------------77

Select phonebook memory storage +CPBS-----------------------------------------------------------------------------77 Read phonebook entries +CPBR-------------------------------------------------------------------------------------------78 Find phonebook entries +CPBF --------------------------------------------------------------------------------------------80 Write phonebook entry +CPBW---------------------------------------------------------------------------------------------81 Report Mobile Equipment error +CMEE----------------------------------------------------------------------------------82

2.1.6 Commands from TIA IS-101 -----------------------------------------------------------------------------83

Select mode +FCLASS -------------------------------------------------------------------------------------------------------83

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DTMF and tone generation +VTS------------------------------------------------------------------------------------------85 Play DTMF tone +WDTMF---------------------------------------------------------------------------------------------------86 Receive gain selection +VGR -----------------------------------------------------------------------------------------------87 Transmit gain selection +VGT-----------------------------------------------------------------------------------------------87

2.2 Commands related to short message service--------------------------------------------89

2.2.1 General Configuration Commands ---------------------------------------------------------------------93

Select Message Service +CSMS-------------------------------------------------------------------------------------------93 Preferred Message Storage +CPMS --------------------------------------------------------------------------------------94 Message Format +CMGF-----------------------------------------------------------------------------------------------------95

2.2.2 Message Configuration Commands--------------------------------------------------------------------96

Service Centre Address +CSCA--------------------------------------------------------------------------------------------96 Set Text Mode Parameters +CSMP ---------------------------------------------------------------------------------------97 Show Text Mode Parameters +CSDH ------------------------------------------------------------------------------------98 Select Cell Broadcast Message Types +CSCB-------------------------------------------------------------------------99 Save Settings +CSAS -------------------------------------------------------------------------------------------------------101 Restore Settings +CRES ---------------------------------------------------------------------------------------------------102

2.2.3 Message Receiving and Reading Commands-----------------------------------------------------103

New Message Indications to TE +CNMI--------------------------------------------------------------------------------103 List Messages +CMGL------------------------------------------------------------------------------------------------------106 Read Message +CMGR-----------------------------------------------------------------------------------------------------108 NEW Message Acknowledgement to ME/TA +CNMA--------------------------------------------------------------109

2.2.4 Message Sending and Writing Commands --------------------------------------------------------110

Send Message +CMGS-----------------------------------------------------------------------------------------------------110 Send Message from Storage +CMSS-----------------------------------------------------------------------------------112 Write Message to Memory +CMGW-------------------------------------------------------------------------------------113 Delete Message +CMGD---------------------------------------------------------------------------------------------------114 Send Command +CMGC---------------------------------------------------------------------------------------------------114

2.2.5 PDU Mode--------------------------------------------------------------------------------------------------115

List Message +CMGL--------------------------------------------------------------------------------------------------------115 Read Message +CMGR-----------------------------------------------------------------------------------------------------117 Send Message +CMGS-----------------------------------------------------------------------------------------------------118 Send Message from Storage +CMSS-----------------------------------------------------------------------------------119 Write Message to Memory +CMGW-------------------------------------------------------------------------------------120

2.3 Commands specified by ITU-T Rec. V25ter as by GSM Rec. 07.07--------------120

2.3.1 Generic TA control commands------------------------------------------------------------------------120

Repeating a command line (A/)-------------------------------------------------------------------------------------------120 Reset to default configuration (Z)-----------------------------------------------------------------------------------------121

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Set to factory-defined configuration (&F)-------------------------------------------------------------------------------122 Request identification information (I) ------------------------------------------------------------------------------------123 Request manufacturer identification (+GMI)---------------------------------------------------------------------------124 Request model identification (+GMM)-----------------------------------------------------------------------------------125 Request revision identification (+GMR)---------------------------------------------------------------------------------125 Request product serial number identification (+GSN) --------------------------------------------------------------126 Request complete capabilities list (+GCAP)---------------------------------------------------------------------------127 Command line termination character (S3) -----------------------------------------------------------------------------128 Response formatting character (S4)-------------------------------------------------------------------------------------129 Command line editing character (S5) -----------------------------------------------------------------------------------130 Command echo (E) ----------------------------------------------------------------------------------------------------------131 Result code suppression (Q) ----------------------------------------------------------------------------------------------132 DCE response format (V)---------------------------------------------------------------------------------------------------133 Result code selection and call progress monitoring control (X) --------------------------------------------------134 Circuit 109 (Received line signal detector) behavior (&C) ---------------------------------------------------------136 Circuit 108 (Data terminal ready) behavior (&D)----------------------------------------------------------------------136 Fixed DTE rate (+IPR)-------------------------------------------------------------------------------------------------------138 DTE-DCE character framing (+ICF) -------------------------------------------------------------------------------------139 DTE-DCE local flow control (+IFC)---------------------------------------------------------------------------------------141 DTE-DCE local rate reporting (+ILRR)----------------------------------------------------------------------------------142

2.3.2 Call Control commands and response --------------------------------------------------------------144

Dial (D) --------------------------------------------------------------------------------------------------------------------------144 Wait for dial tone (W) --------------------------------------------------------------------------------------------------------146 Select tone dialling (dial modifier) (T) -----------------------------------------------------------------------------------147 Select pulse dialing (dial modifier) (P)-----------------------------------------------------------------------------------147 Answer (A)----------------------------------------------------------------------------------------------------------------------148 Hook control (H)---------------------------------------------------------------------------------------------------------------149 Automatic answer (S0)------------------------------------------------------------------------------------------------------150 Monitor speaker loudness (L)----------------------------------------------------------------------------------------------151

2.3.3 Data Compression commands ------------------------------------------------------------------------152

Data compression (DS) -----------------------------------------------------------------------------------------------------152 Data compression reporting (DR) ----------------------------------------------------------------------------------------153

2.4 Command specified by ITU-T Rec. T.32 --------------------------------------------------156

2.4.1 Action commands-----------------------------------------------------------------------------------------156

Send a page +FDT-----------------------------------------------------------------------------------------------------------156 Receive a page +FDR-------------------------------------------------------------------------------------------------------157 Terminate a session +FKS-------------------------------------------------------------------------------------------------158 Initialize facsimile parameters +FIP--------------------------------------------------------------------------------------159

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2.4.2 DCE Responses ------------------------------------------------------------------------------------------159

Facsimile Connection +FCO-----------------------------------------------------------------------------------------------159 Report DCS Frame Information +FCS ----------------------------------------------------------------------------------160 Report DTS Frame Information +FTC-----------------------------------------------------------------------------------162 Report DIS Frame Information +FIS-------------------------------------------------------------------------------------163 Remote Polling Indication +FPO------------------------------------------------------------------------------------------163 Report Remote ID +FTI -----------------------------------------------------------------------------------------------------164 Report Remote ID +FPI-----------------------------------------------------------------------------------------------------165 Report Remote ID +FCI-----------------------------------------------------------------------------------------------------165 Report NSC Frames +FNC-------------------------------------------------------------------------------------------------166 Report NSF Frames +FNF -------------------------------------------------------------------------------------------------166 Report NSS Frames +FNS-------------------------------------------------------------------------------------------------167 Report Password +FPW ----------------------------------------------------------------------------------------------------168 Report Destination Subaddress +FSA ----------------------------------------------------------------------------------168 Report Polling Address +FPA ---------------------------------------------------------------------------------------------169 Report T.30 Phase C Page Reception +FPS -------------------------------------------------------------------------169 Post Page Messages Response +FET ---------------------------------------------------------------------------------171 Transition to Voice +FVO---------------------------------------------------------------------------------------------------171 Call Termination Status +FHS---------------------------------------------------------------------------------------------172 Report Transmit HDLC Frames +FHT ----------------------------------------------------------------------------------175 Report Received HDLC Frames +FHR ---------------------------------------------------------------------------------176

2.4.3 Service Commands --------------------------------------------------------------------------------------177

Service Class +FCLASS----------------------------------------------------------------------------------------------------177 DCE Capabilities Parameter +FCC--------------------------------------------------------------------------------------178 Current Session Parameter +FIS-----------------------------------------------------------------------------------------179 Current Session Result +FCS---------------------------------------------------------------------------------------------180 Local Facsimile Station ID String +FLI----------------------------------------------------------------------------------180 Local polling ID String +FPI------------------------------------------------------------------------------------------------181 Non-Standard Frame FIF Octet String +FNS -------------------------------------------------------------------------182 Indicate Document to Poll +FLP------------------------------------------------------------------------------------------183 Request to Poll +FSP--------------------------------------------------------------------------------------------------------183 Capability to Receive +FCR -----------------------------------------------------------------------------------------------184 HDLC Frame Reporting +FBU --------------------------------------------------------------------------------------------185 Negotiation Reporting +FNR-----------------------------------------------------------------------------------------------185 Address and Polling Capabilities +FAP---------------------------------------------------------------------------------186 Address and Polling Frames/Subaddress +FSA ---------------------------------------------------------------------187 Address and Polling Frames/Polling Address +FPA ----------------------------------------------------------------188 Address and Polling Frames/Password +FPW -----------------------------------------------------------------------188

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Procedure Interrupt Enable +FIE-----------------------------------------------------------------------------------------189 Page Status +FPS------------------------------------------------------------------------------------------------------------190 Copy Quality Checking +FCQ---------------------------------------------------------------------------------------------191 Receive quality Thresholds +FRQ ---------------------------------------------------------------------------------------192 Adaptive Answer +FAA------------------------------------------------------------------------------------------------------193 DTE Phase C Response Timeout +FCT -------------------------------------------------------------------------------193 Call Termination Status +FHS---------------------------------------------------------------------------------------------194 ECM Retry Count +FRY ----------------------------------------------------------------------------------------------------195 Minimum Phase C Speed +FMS -----------------------------------------------------------------------------------------196 Inactivity Timeout +FIT------------------------------------------------------------------------------------------------------196 Minimum Phase C Speed +FMS -----------------------------------------------------------------------------------------197 Report Buffer Size +FBS ---------------------------------------------------------------------------------------------------198 Packet Protocol Control +FPP --------------------------------------------------------------------------------------------198 Data Bit Order +FBO---------------------------------------------------------------------------------------------------------199 Phase C Received EOL Alignment +FEA------------------------------------------------------------------------------200 Image Data Format Conversion +FFC----------------------------------------------------------------------------------200 Modem ID +FMI---------------------------------------------------------------------------------------------------------------201 Model ID +FMM---------------------------------------------------------------------------------------------------------------202 Revision ID +FMR------------------------------------------------------------------------------------------------------------202 Flow Control +FLO -----------------------------------------------------------------------------------------------------------203

2.4.4 Examples (WinFax Pro)---------------------------------------------------------------------------------203

DCE Initialization--------------------------------------------------------------------------------------------------------------203 Send One Page ---------------------------------------------------------------------------------------------------------------204 Receive One Page -----------------------------------------------------------------------------------------------------------205

2.5 GPRS related commands----------------------------------------------------------------------205

2.5.1 Define PDP Context +CGDCONT--------------------------------------------------------------------205

2.5.2 Quality of Service Profile (Request) +CGQREQ--------------------------------------------------208

2.5.3 Quality of Service Profile (Minimum acceptable) +CGQMIN-----------------------------------210

2.5.4 GPRS attach or detach +CGATT---------------------------------------------------------------------213

2.5.5 PDP context activate or deactivate +CGACT------------------------------------------------------214

2.5.6 Enter data state +CGDATA ----------------------------------------------------------------------------216

2.5.7 Show PDP address +CGPADDR---------------------------------------------------------------------218

2.5.8 Automatic response to a network request for PDP context activation +CGAUTO---- 220

2.5.9 Manual response to a network request for PDP context activation +CGANS-------------222

2.5.10 GPRS mobile station class +CGCLASS (GPRS only)-----------------------------------------224

2.5.11 Packet Domain event reporting +CGEREP-------------------------------------------------------226

2.5.12 RS network registration status +CGREG ---------------------------------------------------------228

2.5.13 Select service for MO SMS messages +CGSMS-----------------------------------------------230

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2.5.14 Request GPRS service ‘D’----------------------------------------------------------------------------231

2.5.15 Automatic response to a network request for PDP context activation ‘S0’ ---------------233

2.5.16 Manual acceptance of a network request for PDP context activation ‘A’------------------234

2.5.17 Manual rejection of a network request for PDP context activation ‘H’ ---------------------235

2.6 Module-specific AT Commands-------------------------------------------------------------236

2.6.1 Power Off $POWEROFF -------------------------------------------------------------------------------236

2.6.2 Periodic Signal Quality Report $CSQ----------------------------------------------------------------236

2.6.3 Audio Path $AUPATH -----------------------------------------------------------------------------------237

2.6.4 Audio Gain $AUGAIN------------------------------------------------------------------------------------239

2.6.5 Audio Mute $AUMUTE ----------------------------------------------------------------------------------240

2.6.6 Audio Volume $AUVOL ---------------------------------------------------------------------------------240

2.6.7 Audio AEC $AUAEC-------------------------------------------------------------------------------------241

2.6.8 Audio FIR $AUFIR---------------------------------------------------------------------------------------- 242

2.6.9 Audio VAD $AUVAD-------------------------------------------------------------------------------------243

2.6.10 Audio ABS $AUABS------------------------------------------------------------------------------------244

2.6.11 Audio CONTFLT $AUCONTFLT--------------------------------------------------------------------244

2.6.12 Audio AUATT $AUATT --------------------------------------------------------------------------------245

2.6.13 Audio SMOOTH $AUSMOOTH ---------------------------------------------------------------------246

2.6.14 Audio LEVELMAX $AULEVELMAX----------------------------------------------------------------246

2.6.15 Audio FLT $AUFIL--------------------------------------------------------------------------------------247

2.6.16 Audio MUT $AUMUT-----------------------------------------------------------------------------------248

2.6.17 SIM Ready Notification $SRN------------------------------------------------------------------------248

2.6.18 I/O12 Setting $VCD-------------------------------------------------------------------------------------249

2.6.19 Set duration to clip data on incoming call $TRING ---------------------------------------------250

2.6.20 Convert UNICODE to GB2312 $UNI2GB---------------------------------------------------------251

2.6.21 Convert GB2312 to UNICODE $GB2UNI---------------------------------------------------------251

2.6.22 Play a call tone +GDT----------------------------------------------------------------------------------252

2.6.23 Hardware power off command $HRST------------------------------------------------------------253

2.7 Proprietary AT Commands -------------------------------------------------------------------254

2.7.1 Call progress information %CPI-----------------------------------------------------------------------254

2.7.2 Configuration for SIM application toolkit %SATC-------------------------------------------------259

2.7.3 Send SAT envelope command %SATE-------------------------------------------------------------260

2.7.4 Send SAT command response %SATR ------------------------------------------------------------261

2.7.5 Terminate SAT command or session %SATT-----------------------------------------------------261

2.7.6 Dynamic Multiband: %BAND --------------------------------------------------------------------------262

2.7.7 GPRS Attach/Detach Mode: %CGAATT------------------------------------------------------------262

2.7.8 Flash Memory Check $FSCHK------------------------------------------------------------------------263

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2.7.9 Play Tone on Loud Speaker $CLSL -------------------------------------------------------------264

2.7.10 Play Tone on Speaker $CSSL-----------------------------------------------------------------265

2.7.11 Get PIN1, PIN2, PUK1, PUK2 remaining number %PVRF ----------------------------265

2.7.12 SIM Authentication $SIMAUTH ---------------------------------------------------------------266

2.7.13 RTC DATE ‘$DATE’------------------------------------------------------------------------------266

2.7.14 RTC Time ‘$TIME’--------------------------------------------------------------------------------267

2.7.15 Green LED Setting $GLED---------------------------------------------------------------------268

2.8 M2M: Machine to Machine --------------------------------------------------------------------270

2.8.1 PCO string for context activation ‘%CGPCO’------------------------------------------------------270

2.8.2 TCP/IP Timeout for M2M packet ‘$TIMEOUT’ ----------------------------------------------------270

2.8.3 TCP/IP Remote destination Server information ‘$DESTINFO’--------------------------------271

2.9 Error Message ------------------------------------------------------------------------------------273

2.9.1 Mobile Equipment error result code +CME ERROR: <unsolicited><p>---------------------273

2.9.2 Message Service Failure Result Code +CMS ERROR: <unsolicited><p>-----------------275

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M32 AT Command User Manual Revision History Version Content Author Date

0.4

0.5

Add AT+WDTMF, $SRN, $VCD,

Jamie CW Wang 2004/02/09 $TRING Add AT$UNI2GB, $GB2UNI Eason Liu 2004/02/13 Add AT+GDT, modify AT+CMGR

Ken Chang 2004/03/03 AT$NOSLEEP Add AT$AUVAD, $AUABS, $AUFIR William Hsieh 2004/03/25 Add AT$HSRT, modify $UNI2GB, $GB2UNI AT$AUFIR, AT$AUVAD, AT$AUABS,

Kelvin Chan,

2004/04/02

Jamie CW Wang

William Hsieh 2004/05/28 AT$AUCONTFLT, AT$AUATT, AT$AUSMOOTH, AT$AULEVELMAX, AT$AUFIL, AT$AUMUT

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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:

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 T est 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

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the commands. We now focus on the introduction of PDU mode. 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

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actual service center address (6407058099F9). Every pair of 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

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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 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

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last octet is a reference for the difference in time

between local time and GMT. 04 TP-UDL D4E2940A TP-UD

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 07916407058099F9040B916407950303F10000892122216000000841E19058341 1E91 +CMGL: 3,1,27 07916407058099F9040B916407950303F10000892122217064000941E19058341 E9149 OK

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Deleting SMS messages

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

Example1: AT+CMGD=1 OK

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:  The validity period of the message expires. The validity period is set by

TP-VP.

 A 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>

+CME ERROR: <err>

Description

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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. Note Appendix D will explain the correspondence between TE and ME at phonebook commands, such as +CPBR,+CNUM,+CPBW,+CPBF.

Defined values

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<chset>: string type

Command Possible response(s)

“GSM”(default) “HEX”

GSM default alphabet 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” “UCS2”

International reference alphabet 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” “PCCP437” “PCDN”

ISO 8859 Latin 1 character set PC character set Code Page 437 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.

AT+CSCS=”UCS2” OK AT+CPBS=?

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+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 +CIMI: <IMSI>

+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

AT+CIMI

+CIMI: 466880100493652

OK

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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? +CMUX: <mode> [,<subset>], <port_speed>,

+CME ERROR:<err> +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>.

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 bauding purposes irrespective of any previous higher speed having been selected.

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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. 0 UIH frames used only. 1 UI frames used only. 2 I frames used only. Default value:0

<port_speed> (transmission rate): 1 9600 bits/s 2 19200 bits/s 3 38400 bits/s 4 57600 bits/s 5 115200 bits/s 6 230400 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)

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

<T2> (response timer for the multiplexer control channel in units of ten

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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 下午 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 下午 05:38:36.822507464 (+0.0100146000 seconds)

0D 0A 4F 4B 0D 0A ..OK..

The response of ATE0Q0V1

Request: 92/8/3 下午 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.

Mux mode enable command Advanced without error recovery

Answer: 92/8/3 下午 05:38:37.593631664 (+0.0100146000 seconds)

0D 0A 4F 4B 0D 0A ..OK..

The response of MUX mode command

From now on all command and information should be encapsulated with HDLC format

Request: 92/8/3 下午 05:38:38.394799664 (+0.8011680000 seconds)

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7E 03 3F FC 7E ~.?ü~

First SABM packet to start DLC 0 (that is , disconnected mode)

Answer: 92/8/3 下午 05:38:38.404814264 (+0.0100146000 seconds)

7E 03 73 85 7E ~.s ~

The ACK of first SABM

After the response packet is send , the control channel ,DLC 0 is established

Request: 92/8/3 下午 05:38:38.655179264 (+0.2503650000 seconds)

7E 07 3F 89 7E ~.? ~

Send the second SABM packet to start DLC 1

Answer: 92/8/3 下午 05:38:38.655179264 (+0.0000000000 seconds)

7E 07 73 F0 7E 7E 01 FF E3 05 07 0D B6 7E 7E 05 ~.sð~~.ÿã...¶~~. EF 41 54 2D 43 6F 6D 6D 61 6E 64 20 49 6E 74 65 ïAT-Command Inte 72 70 72 65 74 65 72 20 72 65 61 64 79 0D 0A DF rpreter ready..ß 7E 7E 01 FF E3 05 07 0D B6 7E 7E 01 FF E3 05 07 ~~.ÿã...¶~~.ÿã.. 0D B6 7E 7E 01 FF E3 05 07 0D B6 7E .¶~~.ÿã...¶~

There are sequence responses form the module, let’s analyze step by step

7E 07 73 F0 7E



The ACK of DLC 1, there are two DLC exist now

7E 01 FF E3 05 07 0D B6 7E

UIH control frame to DLC 1 with modem status message

7E 05 EF 41 54 2D 43 6F 6D 6D 61 6E 64 20 49 6E 74 6572 70 72 65 74 65

72 20 72 65 61 64 79 0D 0A DF 7E

UIH information frame to DLC 1 , it’s a normal information. Note that the information field

“41 54 2D 43 6F 6D 6D 61 6E 64 20 49 6E 74 6572 70 72 65 74 65 72 20 72 65 61 64 79 0D 0A” is the string “AT-Command Interpreter ready..” to note the TE.

This field is quiet different form UIH control frame, user should take care about this.

7E 01 FF E3 05 07 0D B6 7E

UIH control frame to DLC 1 with modem status message

(retransmit)

7E 01 FF E3 05 07 0D B6 7E

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UIH control frame to DLC 1 with modem status message (retarnsmit)

As you can see the TE do not response the UIH control frame at all. The module just retransmit the frame until for N2 times. After retrying N2 times, the module give up.

PCCA STD-101[17] select wireless network +WS46

Table: +WS46 parameter command syntax

Command Possible response(s) +WS46=[<n>] +WS46 <n> +WS46=? (list of supported <n>s)

Description

Set command selects to WDS side stack <n> to be used by the TA. Read command shows current setting and test command displays side stacks implemented in the TA.

Defined values

<n>:12 GSM digital cellular

Informative example

-Initial the HyperTerminal

-Initial the MS without SIM card

-AT Command AT+WS46=? +WS46: (12) OK

AT+WS46? +WS46: 12 OK

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2.1.2 Call control commands

Select Type of Address +CSTA

Table: +CSTA parameter command syntax

Command Possible response(s) +CSTA=<type> OK +CSTA? +CSTA: <type> +CSTA=? +CSTA: (list of supported <type>s)

Description

Set command selects the type of number for further dialing command (D) according to GSM/UMTS specifications. Test command returns values supported by the TA as a compound value.

Defined values

<type>: type of address octet in integer; default 145 when dialing string includes international access code character “+”, otherwise 129.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CSTA=? +CSTA: (129,145) OK

AT+CSTA? +CSTA: 129 OK

AT+CSTA=161 OK AT+CSTA? +CSTA: 161 OK

AT+CSTA=128 OK AT+CSTA?

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+CSTA: 128 OK

Call mode +CMOD

Table: +CMOD parameter command syntax

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

Description

Set command selects the call mode of further dialing commands (D) or for next answering command (A). Mode can be either single or alternating. Test command returns values supported by the TA as a compound value.

Defined values <mode> : 0 single mode

1 alternating voice/fax (teleservice 61) 2 alternating voice/data (bearer service 61) 3 voice followed by data (bearer service 81)

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CMOD=? +CMOD: (0-3) OK

AT+CMOD? +CMOD: 0 OK

Hang up call +CHUP

Table: +CHUP parameter command syntax

Command Possible response(s)

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+CHUP

Description

Execution command causes the TA to hang up the current GSM/UMTS call of the ME.

Select bearer service type +CBST

Table: +CBST parameter command syntax

Command Possible response(s) +CBST=[speed>[,<name> [,<ce>]]] +CBST? +CBST: <speed>,<name>,<ce> +CBST=? +CBST: (list of supported <speed>s),(list of

supported <name>s), (list of supported <ce>s)

Description

Set command selects the bearer service <name> with data rate <speed>, and the connection element <ce> to be used when data calls are originated. Values may also be used during mobile terminated data call setup, especially in case of single numbering scheme calls.

Test command returns values supported by the TA as compound values.

Defined values <speed> :

1 300 bps (V.21) 2 1200 bps (V.22) 3 1200/75 bps (V.23) 4 2400 bps (V.22bis) 5 2400 bps (V.26ter) 6 4800 bps (V.32) 7 9600 bps (V.32) 12 9600bps (V.34) 14 14400 bps (V.34) 34 1200 bps (V.120) 36 2400 bps (V.120) 38 4800 bps (V.120)

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39 9600 bps (V.120) 43 14400 bps (V.120) 65 300 bps (V.110) 66 1200 bps (V.110) 68 2400 bps (V.110 or X.31 flag stuffing) 70 4800 bps (V.110 or X.31 flag stuffing) 71 9600 bps (V.110 or X.31 flag stuffing) 75 14400 bps (V.110 or X.31 flag stuffing)

<name>:

0 data circuit asynchronous (UDI or 3.1k HZ modem)

< ce>:

0 transparent 1 non-transparent 2 both, transparent preferred 3 both, non-transparent preferred

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CBST=? +CBST: (0-7,12,14,34,36,38,39,43,65,66,68,70,71,75), (0), (0-3) OK

AT+CBST? +CBST: 7,0,1 OK

Radio link protocol +CRLP

Table: +CRLP parameter command syntax

Command Possible response(s) +CRLP=[<iws>[,<mws>[,< T1>[,<N2>]]] +CRLP=? +CRLP: <iws>,<mws>,<T1>,<N2>

[<CR><LF>+CRLP:<iws>,<mws>,<T1>,<N2> […]]

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+CRLP=? +CRLP: (list of supported <iws>s), (list of

supported <mws>s), (list of supported <T1>s),

Description

Radio link protocol (RLP) parameters used when non-transparent data calls are originated may be altered with set command. Available command subparameters depend on the RLP versions implemented by the device (currently only version 1 is supported).

Read command returns current setting for supported RLP version. Test command returns values supported by the TA as a compound value.

Defined values

<iws>,<mws>,<T1>,<N2>: IWF to MS window size, MS to IWF window size, acknowledgement timer T1, retransmission attempts N2: T1 is in units of 10 ms.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CRLP=? +CRLP: (0-61), (0-61), (39-255),(1-255) OK

AT+CRLP? +CRLP: 61,61,48,6 OK

Service reporting control +CR

Table: +CR parameter command syntax

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

Description

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Set command controls whether or not intermediate result code +CR: <serv> is returned from the TA to the TE. If enabled, the intermediate result code is transmitted at the point during connect negotiation at which the TA has determined which speed and quality of service will be used, before any error control or data compression reports are transmitted, and before the intermediate result code CONNECT is transmitted.

Defined values

<mode> :

0 disables reporting

1 enables reporting <serv>: ASYNC asynchronous transparent SYNC synchronous transparent REL ASYNC asynchronous non-transparent REL SYNC synchronous non-transparent

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CR=? +CR: (0,1) OK

AT+CR? +CR: 0 OK

AT+CR=1

+CR:1 OK

ATD024496688; +CR: REL ASYNC CONNECT

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Extended error report +CEER

Table: +CEER parameter command syntax

Command Possible response(s) +CEER +CEER: <report>

Description

Execution command causes the TA to return one or more lines of information text <report>, determined by the ME manufacturer, which should offer the user of the TA an extended report of the reason for

- the failure in the last unsuccessful call setup or in-call modification;

- the last call releases;

Typically, the text will consist of a single line containing the cause Information given by GSM/UMTS network in textual format.

Defined values

<report>: the total number of characters shall not exceed 2041 characters.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CEER +CEER: no error OK

ATD0920123456; OK NO CARRIER (disconnect by remote side)

AT+CEER +CEER: normal call clearing OK

Cellular result codes +CRC

Table: +CRC parameter command syntax

Command Possible response(s)

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+CRC=[<mode>] +CRC? +CRC: <mode> +CRC=? +CRC: (list of supported <mode>s)

Description

Set command controls whether or not the extended format of incoming call indication is used. When enabled, an incoming call is indicated to the TE with unsolicited result code +CRING: <type> instead of the normal RING.

Test command returns values supported by the TA as a compound value.

Defined values <mode> :

0 disables extended format

1 enables extended format

<type> ASYNC asynchronous transparent SYNC synchronous transparent REL ASYNC asynchronous non-transparent REL SYNC synchronous non-transparent FAX facsimile (TS 62) VOICE normal voice (TS 11)

VOICE/XXX voice followed by data (BS81) (XXX is ASYNC, SYNC, REL

ASYNC or REL SYNC) ALT VOICE/XXX alternating voice/data, voice first (BS 61) ALT XXX/VOICE alternating voice/data, data first (BS 61) ALT VOICE/FAX alternating voice/fax, voice first (TS 61) ALT FAX/VOICE alternating voice/fax, fax first (TS 61) GPRS <PDP_type>, <PDP_addr>[,[<L2P>][,<APN>]] GPRS network

request for PDP context activation

<PDP_type>, <PDP_addr> and <APN> are as defined in the Define PDP Context (+CGDCONT) command. The optional <L2P> proposes a layer 2 protocol to use between the MT and the TE. It is defined in the Enter GPRS Data Mode (+CGDATA) command.

Informative example

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-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CRC? +CRC: 0 OK

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

AT+CRC=1 OK +CRING: VOICE (MT call)

Single numbering scheme +CSNS

Table: +CSNS parameter command syntax

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

Description

Set command selects the bearer or teleservice to be used when mobile terminated single numbering scheme call is established. Parameter values set with +CBST command shall be used when <mode> equals to a data service.

Test command returns values supported by the TA as a compound value.

Defined values <mode> :

0 voice 1 alternating voice/fax, voice first (TS 61) 2 fax (TS 62) 3 alternating voice/data, voice first (BS 61) 4 data 5 alternating voice/fax, fax first (TS 61)

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6 alternating voice/data, data first (BS 61) 7 voice followed by data (BS 81)

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CSNS=? +CSNS: (0-7) OK

AT+CSNS? +CSNS: 0 OK

AT+CSNS=8 ERROR

Dial command D

ATD<dial string>[I/I] [G/g] [;]

When semicolon character is given after dialing digits (or modifiers), a voice call originated to the given address.

I or I (override the CLIR supplementary service subscription default value for this call; I=invocation (restrict CLI presentation) and i = suppression (allow CLI presentation).

G or g (control the CUG supplementary service information for this call; uses index and info values set with command +CCUG.

Direct dialing from phonebooks

1. ATD><str>[I] [G] [;] Originate call to phone number which corresponding alphanumeric field is <str> (if possible, all available memories should be searched for the correct entry).

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2. ATD>mem<n> [I] [G] [;] Originate call to phone number in memory “mem” entry location <n> (mem is “SM”, “LD”, “MC”, “ME”, “RC”, “MT” or “SN”. Available memories may be queried with Select Phonebook Storage test command +CPBS=? )

3. ATD><n> [I] [G] [;] Originate call to phone number in entry location <n> (it is manufacturer specific which memory storage of ME, SIM/UICC and TA is used; command Select Phonebook Memory Storage +CPBS setting is recommended to be used).

Informative examples

-Initial the HyperTerminal

-Initial the MS

-Initial the alpha id of first physical record in AND is “A”

-AT Command (1) Dial number 188

ATD188;

OK

(2) Dial number in phonebook index 6.

AT+CPBS?

+CPBS: “SM”

OK

ATD>SM6;

OK

2.1.3 Network service related commands

Subscriber number +CNUM

Table: +CNUM parameter command syntax

Command Possible response(s)

+CNUM [+CNUM: [<alpha1>],<number1>, <type1>

[…<CR><LF>+CNUM: [alphaX>],<numberX>, <typeX>]] +CME ERROR:<err>

Description

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Set command returns the MSISDN related to the subscriber (this information can be stored in the SIM or in the ME.) If subscriber has different MSISDN for different services, each MSISDN is returned in a separate line (<CR><LF>).

Defined values

<number>: string type; phone number <alpha>:string type; optional alphanumeric string associated with <number>;used character set should be the one selected with command Select TE Character Set +CSCS. <type>: integer value

129 National 145 International

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1.Power on MS but SIM is not ok AT+CPIN? +CME ERROR: 10 AT+CNUM +CME ERROR: 10

2.Power on MS and SIM is ok AT+CPIN? +CPIN: READY OK

AT+CNUM +CNUM: “ABC”,”0920123456”,129 OK

Network registration +CREG

Table: +CREG parameter command syntax

Command Possible response(s) +CREG=[<n>] +CME ERROR:<err> +CREG? +CREG: <n>,<stat>

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+CME ERROR:<err>

+CREG=? +CREG: (list of supported <n>s)

Description

Set command controls the presentation of an unsolicited result code code +CREG: <stat>when <n>=1 or 2.

Read command returns the status of result code presentation and an integer <state> which shows whether the network has currently indicated the registration of the ME.

Test command returns a list of supported <n>.

Defined values

<n>:integer value

0 <default> Disable network registration unsolicited result code. 1 Enable network registration unsolicited result code

+CREG: <stat>.

2 Enable network registration and location information

unsolicited result code +CREG: <stat>[,<lac>,<ci>]

<state>:integer value

0 Not registered, ME is not currently searching a new

operator to register to (NO SERVICE) 1 Registered, home network 2 Limiting Service: not registered but ME is currently

searching a new operator to register to 3 Limiting Service: registration denied 4 Unknown 5 Registered, roaming

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. Disable network registration unsolicited result code AT+CREG=0

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OK

2. Enable network registration unsolicited result code AT+CREG=1 OK

3.Returns the status of current network registration. AT+CREG? +CREG: 1,1 OK

4.Enable network registration and location information unsolicited result code AT+CREG=2 OK AT+CREG? +CREG: 2, 5, 100F, 0000 OK

Operator selection +COPS

Table: +COPS parameter command syntax

Command Possible response(s)

+COPS=[<mode>[,<forma

+CME ERROR: <err> t>[,<oper>]]] +COPS? +COPS: <mode>[,<format>,<oper>]

+CME ERROR: <err> +COPS=? +COPS: [list of supported(<state>,[long

alphanumeric<oper>], [short

alphanumeric<oper>], numerica <oper>)s]

[,,(list of supported <mode>s), (list of

supported <format>s)]

+CME ERROR: <err>

Description

1. Set command forces an attempt to select and register the GSM network operator. <mode> is used to select whether the selection is done automatically by the ME or is forced by this command to operator <oper>

2. Read command returns the current mode and the currently selected operator. If

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no operator is selected, <format> and <oper> are omitted.

3. Test command returns a list of quadruplets, each representing an operator present in the network. Quadruplet consists of an integer indicating the availability of the operator <state>,long and short alphanumeric format of the name of the operator, and numeric format representation of the operator. Any of the formats may be unavailable and should then be an empty field. The list of operators shall be in order: home network, networks referenced in SIM, and other networks.

In addition, after the operator list, TA returns lists of supported <mode>s and <format>s delimited from the operator list by two commas.

Defined values

<mode>: integer value

0 Auto selection 1 Manual selection 3

Set only <format>,don’t attempt registratio.<oper> shall be omitted.

4 Manual/automatic (<oper> fields shall be present);if

manual selection fails, automatical mode (<mode>=0)is entered.

<format>: integer value

0 Long format alphanumeric <oper> 1 Short format alphanumeric <oper> 2 Numeric <oper>

<oper>:string type; numeric format is the GSM Location Area Identification number which consists of a three BCD digit country code coded as in ITU-T E.212 Annex A[10], plus a two BCD digit network code, which is administration specific; returned <oper> shall not be in BCD format, but in IRA characters converted from BCD; hence the number has structure: (country code digit3)(country code digit2)(country code digit1)(network code digit2)(network code digit1)

<state>: integer value

0 Unknown 1 Available 2 Current

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3 Forbidden

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1.Automatic selection of network AT+COPS=0 OK

AT+COPS? +COPS: 0,0,"ROC LDTA GSM" OK

2. List all available network and manual selection of network AT+COPS=? +COPS: (2,"ROC LDTA GSM","LDGSM","46692"), (3,"TWN GSM 1800","PCC","46697"),(1,"FarEasTone","FET","46601"),(3,"KGT-Online","KGT","46 688") OK AT+COPS=1,2,”46601” OK

Facility Lock AT+CLCK

Table: +CLCK parameter command syntax

Command Possible response(s) +CLCK=<fac>,<mode>[,< passwd>]

Right: OK

When <mode>=2 and command successful:

Right: +CLCK: <status>[,<class>] Wrong: +CME ERROR: <er>

+CLCK=? +CLCK: (list of supported <fac>s)

+CME ERROR: <err>

Description

Execution command is used to lock, unlock or interrogate a ME or a network facility <fac>. Password is normally needed to do such actions. When querying the

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status of a network service (<mode>=2) the response line for ‘not active’ case (<status>=0) should be returned only if service is not active for any <class>. This command should be abortable when network facilities are set or interrogated.

Call barring facilities are based on GSM supplementary services. The interaction of these with other commands based on other GSM supplementary services is described in the GSM standard.

Test command returns facility values supported by the TA as compound value.

Defined Values

<fac>:

“SC” “AO” “OI” “OX”

“AI” “IR”

“AB” “AG” “AC” “FD”

“PS” “PN” “PU”

PIN enabled (<mode>=1) / disabled (<mode> = 0) BAOC (Barr All Outgoing Calls) BOIC (Barr Outgoing International Calls) BOIC-exHC (Barr Outgoing International Calls except to Home Country) BAIC (Barr All Incoming Calls) BIC-Roam (Barr Incoming Calls when Roaming outside the home country) All Barring services All outgoing barring services All incoming barring services SIM fixed dialling Numbers (FDN) memory feature (if PIN2 authentication has not been done during the current session, PIN2 is required as <passwd> SIM personalisation Network personalisation of the ME Network subset personalisation of the ME

“PP” “PC” “PF”

Service provider personalisation of the ME Corporate personalisation of the ME Personalisation on first inserted SIM

<mode>:

0 Unlock 1 Lock 2 Query status

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<status>:

0 Not active 1 Active

<password>: string type, indicate PIN or network password <class>: integer type, sum of integers each representing a class(default 7)

1 Voice 2 Data 4 Fax 8 Short message 16 Data circuit sync 32 Data circuit async 64 Dedicated packet access 128 Dedicated PAD access

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CLCK=? +CLCK:("SC","AO","OI","OX","AI","IR","AB","AG","AC","FD","PS","PN","PU", "PP","PC","PF") OK

1. Enable PIN with “1234”

AT+CLCK=”SC”,1,”1234” OK

2. Disable PIN

AT+CLCK=”SC”,0,”1234” OK

3. Query the PIN lock status

AT+CLCK=”SC”,2 +CLCK: 0 OK

4. Activate all outgoing calls barring

AT+CLCK=”AO”,1,”1234” OK

5. Disable all outgoing calls barring

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AT+CLCK=”AO”,0,”1234” OK

Change password +CPWD

Table: +CPWD action command syntax

Command Possible response(s) +CPWD=<fac>, <oldpwd>, <newpwd> +CME ERROR: <err> +CPWD=? +CPWD: list of supported

(<fac>, <pwdlength>)s +CME ERROR: <err>

Description

Action command sets a new password for the facility lock function defined by command Facility Lock +CLCK.

Defined values

<fac>: “P2” SIM PIN2, refer Facility Lock +CLCK for other values

<oldpwd>, <newpwd>: string type; <oldpwd> shall be the same as password specified for the facility from the ME user interface or with command Change Password +CPWD and <newpwd> is the new password; maximum length of password can be determined with <pwdlength>

<pwdlength>: integer type maximum length of the password for the facility

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CPWD=? +CPWD:("SC",4),("AO",4),("OI",4),("OX",4),("AI",4),("IR",4),("AB",4),("AG",4),("A C",4),("P2",4) OK

Calling line identification presentation +CLIP

Table: +CLIP parameter command syntax

39

Command Possible response(s) +CLIP=[<n>] +CLIP? +CLIP: <n>, <m> +CLIP=? +CLIP:(list of supported <n>)

Description

This command enables a called subscriber to get the calling line identity (CLI) of the calling party when receiving a mobile terminated call.

Defined values

<n>: integer type, sets /shows the result code presentation status in TA

0 Disable 1 Enable

<m>: integer type, shows the subscriber CLIP service status in the network

0 CLIP not provisioned 1 CLIP provisioned 2 Unknown (e.g. no network, etc.)

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. ACTIVATE AT+CLIP=1 OK AT+CLIP? +CLIP: 1, 1

(As incoming call occurs, ms will display the unsolicited result code.)

RING (1)+CLIP: "0920123456",129,"",,"APPLE",0 (AT+CSCS=”IRA”) (2)+CLIP: "",128,,,,1

2. DEACTIVATE AT+CLIP=0 OK

40

AT+CLIP? +CLIP:0,1

3. INTERROGATION AT+CLIP? +CLIP: 0,1 OK

Call line identification restriction +CLIR

Table: +CLIR parameter command syntax

Command Possible response(s) +CLIR=[<n>] +CLIR? +CLIR: <n>, <m> +CLIR=? +CLIR:(list of supported <n>)

Description This command allows a calling subscriber to enable or disable the presentation of the CLI to the called party when originating a call. Set command overrides the CLIR subscription (default is restricted or allowed) when temporary mode is provisioned as a default adjustment for all following outgoing calls. This adjustment can be revoked by using the opposite command. Read command gives the default adjustment for all outgoing calls (given in <n>), and also triggers an interrogation of the provision status of the CLIR service (given in <m>). Test command returns values supported by the TA as a compound value.

Defined values <n>: integer type, sets the adjustment for outgoing call

0 Presentation indicator is used according to CLIR service 1 CLIR invocation 2 CLIR suppression

<m>: integer type, shows the subscriber CLIR service status in the network

0 CLIR not provisioned 1 CLIR provisioned 2 Unknown (e.g. no network, etc.) 3 CLIR temporary mode presentation restricted 4 CLIR temporary mode presentation allowed

41

Note: Temporary mode in make call request ATD*31#<phone num> CLIR suppression, the called party will receive the calling number.

ATD#31#<phone num>

CLIR invocation, the called party will not receive the calling number.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. DEACTIVATE AT+CLIR=2 OK After the suppression of CLIR, the called party will receive the calling subscriber’s phone number.

2. ACTIVATE AT+CLIR=1 OK After invocation of the CLIR, the called party will not receive the calling subscriber’s phone number.

3. INTERROGATION AT+CLIR? +CLIR: 0,4 OK It means the current setting is according to the subscription of the CLIR service. And the service status in the network is “Temporary mode presentation allowed”.

Connected line identification presentation +COLP

Table: +COLP parameter command syntax

Command Possible response(s)

+COLP=[<n>]

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+COLP? +COLP: <n>, <m> +COLP=? +COLP:(list of supported <n>s)

Description

This command enables a calling subscriber to get the connected line identity (COL) of the called party after setting up a mobile originated call. The command enables or disables the presentation of the COL at the TE. It has no effect on the execution of the supplementary service COLR in the network. This command is useful for call forwarding of the connected line.

When enabled (and called subscriber allows), +COLP: <number>, <type>[, <subaddr>, <satype>[, <alpha>]] intermediate result code is returned from TA to TE before any +CR or V.25ter response. It is manufacturer specific if this response is used when normal voice call is established.

Read command gives the status of <n>, and also triggers an interrogation of the provision status of the COLP service (given in <m>).

Define values

<n>(parameter sets/shows the result code presentation status in the TA)

0 Disable 1 Enable

<m>(parameter shows the subscriber COLP service status in the network)

0 COLP not provisioned 1 COLP provisioned 2 Unknown (e.g. no network, etc.)

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

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

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AT+COLP? +COLP: 0,0 OK

AT+COLP=1 OK ATD0920123456; +COLP: ,255,,,"LIN" OK

Closed user group +CCUG

Table: +CCUG parameter command syntax

Command Possible response(s) +CCUG=[<n>[, <index>[, <info>]]] +CCUG? +CCUG: <n>,<index>, <info>

Description

This command allows control of the Closed User Group supplementary service. Set command enables the served subscriber to select a CUG index to suppress the Outgoing Access (OA), and to suppress the preferential CUG.

Define values

<N>

0 Disable CUG temporary mode 1 Enable CUG temporary mode

<Index>

0…9

CUG index

10 No index (preferred CUG taken from subscriber data.

<Info>

0 No information 1 Suppress OA 2 Suppress preferential CUG 3 Suppress OA and preferential CUG

Informative examples

-Initial the HyperTerminal

-Initial the MS

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-AT Command

AT+CCUG=? +CCUG: (0,1), (0-10), (0-3) OK

AT+CCUG? +CCUG: 0,0,0 OK

Call forwarding service +CCFC

Table: +CCFC parameter command syntax

Command Possible response(s) +CCFC =<reason>, <mode>[, <number>[, <type>[,<class>[,<subadd r>[, <satype>[, <time>]]]]]]

+CME ERROR: <err> When <mode> = 2 and command successful: +CCFC: <status>, <class1>[, <number>, <type>[,<subaddr>,<satype>[,<time>]]][<CR>< LF>+CCFC: <status>, <class2>[, <number>, <type>[, <subaddr>, <satype>[, <time>]]] […]]

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

Description

This command allows control of the call forwarding supplementary service. Registration, erasure, activation, deactivation, and status query are supported.

Defined values

<Reason>:

0 Unconditional 1 Mobil busy 2 No Reply 3 Not reachable 4 All call forwarding 5 All conditional call forwarding

<Mode>:

0 Disable

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1 Enable 2 Query Status 3 Registration 4 Erasure

<Class x>: integer type, sum of bearer service code.

1 Voice (telephony) 2 Data (refers to all bearer services; with <mode>=2 this

may refer only to some bearer service if TA does not

support values 16,32,64 and 128) 4 Fax (facsimile services) 8 Short message service 16 Data circuit sync 32 Data circuit async 64 Dedicated packet access 128 Dedicated PAD access

<number>: string type, forwarding phone number. <type>: type of address octet in integer format; default 145 when dialing string includes international access code character “+”, otherwise 129

<subaddr>: string type subaddress of format specified by <satype> <satype>: type of subaddress octet in integer format; default 128 <Time>: 1…30 when “no reply” is enabled or queried, this gives the time in seconds to wait before call is forwarded, default value 20 <Status>:

0 Not active 1 Active

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. Query status AT+CCFC=0,2 Query the status of unconditional forwarding +CCFC: 0,1

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Interrogated result: not active, voice OK

2. Registration Before enable, disable, and erasure, you should register the SS service. AT+CCFC=0,3,”0123456789” Register unconditional forwarding to “0123456789” and activated the service. OK It doesn’t means that the SS service is registered successfully. You should query the status to confirm the result.

3. Deactivate AT+CCFC=0,0 Disable unconditional forwarding. OK

4. Activate AT+CCFC=0,1 Enable unconditional forwarding.

5. Erasure AT+CCFC=0,4 Erase registered unconditional forwarding data.

Note: After registering unconditional call forwarding, one can't register another reason’s service.

Call waiting service +CCWA

Table: +CCWA parameter command syntax

Command Possible response(s) +CCWA =[<n>[, <mode>[, <class>]]]

+CME ERROR: <err> When <mode> = 2 and command successful +CCWA: <status>,<class1>[<CR><LF>+CCWA:

<status>, <class2>[…]] +CCWA? +CCWA: <n> +CCWA=? +CCWA: (list of supported <n>s)

47

Description

This command allows control of the Call Waiting supplementary service. Activation, deactivation and status query are supported. When querying the status of a network service (<mode>=2) the response line for ‘not active’ case (<status>=0) should be returned only if services not active for any <class>. Parameter <n> is used to disable/enable the presentation of an unsolicited result code +CCWA: <number>, <type>, <class>,[<alpha>][,<CLI validity>] to the TE when call waiting service is enabled. Command should be abortable when network is interrogated.

Defined values

<N>: integer type (sets/shows the unsolicited result code presentation status in the TA),

. 0 Disable 1 Enable

<Mode>: integer type, operation mode of

0 Disable 1 Enable 2 Query status

<Status>: integer type, CCWA status.

0 Not active 1 Active

<Class>: is a sum of integers each representing a class of information

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

may refer only to some bearer service if TA does not

support values 16,32,64 and 128) 4 Fax (facsimile services) 8 Short message service 16 Data circuit sync 32 Data circuit async 64 Dedicated packet access 128 Dedicated PAD access

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

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<type> <Type>: type of address octet in integer format <Alpha>:optional string type alphanumeric representation of <number> corresponding to the entry found in phonebook. <CLI validity>:

0 CLI valid 1 CLI has been withheld by the originator. 2 CLI is not available due to interworking problems or

limitations of originating network.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. ACTIVATION

AT+CCWA=0,1 OK

2. DEAACTIVATION

AT+CCWA=0,0 OK

AT+CCWA=1 ATD0952123456; OK (Another call is coming) +CCWA: , 161,1,,1

3. INTERROGATION

AT+CCWA=0,2 Case 1: if the call waiting is active, echo +CCWA: 1,1 Case 2: if operation success and call waiting is not active, echo +CCWA: 0,1 Case 3: if operation success and network not support, echo ERROR

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Short string procedure AT+CHLD

Table: +CHLD parameter command syntax

Command Possible response(s) +CHLD =[<n>] +CME ERROR <err> +CHLD=? [+CHLD: (list of supported <n>s)

Description

This command allows the control of the following call related services:

- a call can be temporarily disconnected from the ME but the connection is retained by the network;

- Multiparty conversation (conference calls);

- The served subscriber who has two calls (one held and the other either active

or alerting) can connect the other parties and release the served subscriber’s own connection.

Calls can be put on hold, recovered, released, added to conversation, and transferred similarly.

It is recommended (although optional) that test command returns a list of operations which are supported. The call number required by some operations shall be denoted by "x" (e.g. +CHLD: (0,1,1x,2,2x,3)).

Defined values

1. AT+CHLD=0

Release all held calls or send UDUB for a waiting call.

2. AT+CHLD=1

Release all active calls and accept the other held or waiting calls.

3. AT+CHLD=1x

Release a specified active call x.

4. AT+CHLD=2

Place all active calls on hold and accept the other waiting or held calls.

5. AT+CHLD=2x

Place all active calls on hold except call x with which communication shall be supported.

6. AT+CHLD=3

Adds held calls to the conversation.

7. AT+CHLD=4

50

Connects the two calls and disconnects the subscriber from both calls.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

(1) ;;;;;;MO1<Test Module> makes a call to MT1 ATD0921214863; OK ;;;;;;MT1 accepts the call from MO1 AT+CHLD=2 OK ;;;;;;MO2 makes a call to MO1 ;;;;;;MO1 accepts the call from MO2 Ring ATA AT+CHLD=1 OK ;;;;;;MO1-MO2 breaks.

(2) ;;;;;;MO1<Test Module> makes a call to MT1 ATD0921214863; OK ;;;;;;MT1 accepts the call from MO1 AT+CHLD=2 OK ;;;;;;MO2 makes a call to MO1 ;;;;;;MO1 accepts the call from MO2 Ring ATA AT+CHLD=4 OK ;;;;;;Both calls break.

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Unstructured supplementary service data +CUSD

Table: +CUSD parameter command syntax

Command Possible response(s) +CUSD=[<n>[, <str>[, <dcs>]]] +CME ERROR: <err> +CUSD? +CUSD: <n> +CUSD=? +CUSD: (list of supported <n>s)

Description

This command allows control of the Unstructured Supplementary Service Data (USSD). Both network and mobile initiated operations are supported. Parameter <n> is used to disable/enable the presentation of an unsolicited result code (USSD response from the network, or network initiated operation) +CUSD: <m>[, <str>, <dcs>] to the TE. In addition, value <n>=2 is used to cancel an ongoing USSD session.

When <str> is given, a mobile initiated USSD-string or a response USSD-string to a network initiated operation is sent to the network. The response USSD-string from the network is returned in a subsequent unsolicited +CUSD result code.

Test command returns values supported by the TA as a compound value.

Defined values

<N>

0 Disable the result code presentation in the TA 1 Enable the result code presentation in the TA 2 Cancel session (not applicable to read command

response)

<str>: string type USSD-string(when <str> parameter is not given, network is not interrogated). <dcs>: Cell Broadcast Data Coding Scheme in integer format. <M>

0 no further user action required 1 further user action required. 2 USSD terminated by network 3 Other local client has responded 4 Operation not supported 5 Network time out

52

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CUSD=? +CUSD: (0,1,2) OK

AT+CUSD? +CUSD: 0 OK

AT+CUSD=1 OK

(Far Eastone SIM) AT+CUSD=1,"*147#",15 +CUSD: 0,"Accepted",0 OK

Advice of Charge +CAOC

Table: +CAOC parameter command syntax

Command Possible response(s)

+CAOC=[<mode>] [+CAOC: <ccm>]

+CME ERROR: <err> +CAOC? +CAOC: <mode> +CAOC=? [+CAOC: (list of supported <mode>s)]

Description

This refers to Advice of Charge supplementary service that enables subscriber to get information about the cost of calls. With <mode>=0, the execute command

returns the current call meter value from the ME.

The command also includes the possibility to enable an unsolicited event reporting of the CCM information. The unsolicited result code +CCCM: <ccm> is sent when

53

(

the CCM value changes, but not more that every 10 seconds. Deactivation of the unsolicited event reporting is made with the same command.

The Read command indicates whether the unsolicited reporting is activated or not. Read command is available when the unsolicited result code is supported.

Defined values

<Mode>

0 Query CCM value 1 Deactivate the unsolicited reporting of CCM value

2 Activate the unsolicited reporting of CCM value <ccm>: string type; three bytes of the current call meter value in hexadecimal format.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CAOC +CAOC: "000000" OK

AT+CAOC? +CAOC: 1 OK

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

Supplementary service notifications +CSSN

Table: +CSSN parameter command syntax

Command Possible response(s) +CSSN=[<n>[, <m>]] +CSSN? +CSSN: <n>, <m> +CSSN=? +CSSN:

list of supported <n>s), (list of supported

54

<m>s)

Description

This command refers to supplementary service related network initiated notifications. The set command enables/disables the presentation of notification result codes from TA to TE.

When <n>=1 and a supplementary service notification is received after a mobile originated call setup, intermediate result code +CSSI: <code1>[,<index>] is sent to TE before any other MO call setup result codes presented in the present document or in V.25ter. When several different <code1>s are received from the network, each of them shall have its own +CSSI result code. When <m>=1 and a supplementary service notification is received during a mobile terminated call setup or during a call, or when a forward check supplementary service notification is received, unsolicited result code +CSSU: <code2>[,<index>[,<number>,<type>]]] is sent to TE. In case of MT call setup, result code is sent after every +CLIP result code (refer command "Calling line identification presentation +CLIP") and when several different <code2>s are received from the network, each of them shall have its own +CSSU result code.

Test command returns values supported by the TA as a compound value.

Defined values

<N>(parameter sets/shows the +CSSI result code presentation status)

0 Disable 1 Enable

<M>(parameter sets/shows the +CSSU result code presentation status)

0 Disable 1 Enable

<Code1>

0 Unconditional call forwarding is active 1 Some of the conditional call forwardings are active 2 Call has been forwarded 3 Call is waiting 4 This is a CUG call 5 Outgoing calls are barred 6 Incoming calls are barred 7 CLIR suppression rejected

55

8 Call has been deflected <Index>: refer “Closed user group+CCUG” <Code2>

0 This is a forwarded call

1 This is a CUG call

2 Call has been put on hold

3 Call has been retrieved

4 Multiparty call entered

5 Call on hold has been released

6 Forward check SS message received

7 Call is being connected with the remote party in alerting

state in explicit call transfer operation

8 Call has been connected with the other remote party I

explicit call transfer operation 9 This is a deflected call 10 Additional incoming call forwarded

<Number>: string type phone number <Type>: type of address octet in integer format <subaddr>: string type subaddress <satype>: type of subaddress octet in integer format

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command

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

AT+CSSN? +CSSN: 0,0 OK

AT+CSSN=1,1 OK AT+CSSN? +CSSN: 1,1

56

OK

at+cssn=1,1 OK atd0937135753; // This phone number is “call forward” to another phone OK

+CSSI: 1 NO CARRIER

OK

Preferred PLMN list +CPOL

Table: +CPOL parameter command syntax

Command Possible response(s) +CPOL=[<index>][,

+CME ERROR: <err> <format>[,<oper>]] +CPOL? +CPOL: <index1>,<format>,<oper1>

[<CR><LF>+CPOL:<index2>,<format>,<oper2

> [...]]

+CME ERROR: <err> +CPOL=? +CPOL: (list of supported <index>s), (list of

supported <format>s)

+CME ERROR: <err>

Description

This command is used to edit the PLMN selector with Access Technology lists in the SIM card or active application in the UICC(GSM or USIM).

Execute command writes an entry in the SIM/USIM list of preferred PLMNs, previously selected by the command +CPLS. If no list has been previously selected, the User controlled PLMN selector with Access Technology, EF

OPLMNWACT

, is the one accessed by default. If <index> is given but <oper> is left out, entry is deleted. If <oper> is given but <index> is left out, <oper> is put in the next free location. If only <format> is given, the format of the <oper> in the read command is changed. The Access Technology selection parameters, Read command returns all used entries from the SIM/USIM list of preferred PLMNs, previously selected by the command +CPLS, with the Access Technologies for each PLMN in the list.

57

Note: It is recommend to add a preferred PLMN with numeric format. There is an internal list which store all PLMN’s long name, short name and numeric name in the module. AT+COPN shows the list. The numeric information is the MCC and MNC of the PLMN. When using long/short format to add a preferred PLMN that does not exist in the internal list, the module will reject the command because the module is fail to get the MCC and MNC of the PLMN.

Test command returns the whole index range supported by the SIM.

Defined values

<indexn>: integer type; the order number of operator in the SIM/USIM preferred operator list <format>

0 Long format alphanumeric<oper> 1 Short format alphanumeric<oper> 2 Numeric<oper>

<opern>: string type; <format> indicates if the format is alphanumeric or numeric

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CPOL=? +CPOL: (1-8), (0-2) OK

AT+CPOL? +CPOL:1,2,”46697” OK

List current calls +CLCC

Table: +CLCC parameter command syntax

Command Possible response(s) +CLCC +CLCC: <id1>, <dir>, <state>, <mode>,

<mpty>[, <number>, <type>[, <alpha>]]….

58

+CLCC: 0

Description

Returns list of current calls of ME. If command succeeds but no calls are available, no information response is sent to TE.

Defined values <Id>: call id which is a digit from 1 to 7 <Dir>: integer type

0 Mobile originated (MO) call 1 Mobile terminated (MT) call

<State>:(state of the call)

0 Active 1 Held 2 Dialing (MO call) 3 Alerting (MO call) 4 Incoming (Mt call) 5 Waiting (MT call)

<Mode>:(bearer/teleservice)

0 Voice 1 Data 2 Fax 3 Voice followed by data, voice mode 4 Alternating voice/data, voice mode 5 Alternating voice/fax, voice mode 6 Voice followed by data, data mode 7 Alternating voice/data, data mode 8 Alternating voice/fax, fax mode 9 Unknown

<mpty>: integer type

0 Call is not one of multiparty (conference) call parties

1 Call is one of multiparty (conference) call parties <Number>: string type phone number <Type>: type of address octet in integer format <Alpha>: string type alphanumeric representation of <number> corresponding to the entry found in phonebook; used character set should be the one selected with

59

command +CSCS

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command

ATD0952123456; OK AT+CLCC +CLCC: 1,0,0,0,0,"0952123456",129,"aa"

Read operator names +COPN

. Table: +COPN parameter command syntax

Command Possible response(s)

+COPN +COPN: <numeric1>,

<alpha1>[<CR><LF>+COPN: <numeric2>, <alpha2>[…]] +CME ERROR: <err>

Description

Execute command returns the list of operator names from the ME. Each operator code<numericn> that has an alphanumeric equivalent <alphan> in the ME memory shall be returned.

Defined values

<numericn>: string type; operator in numeric format(see +COPS) <alphan>: string type; operator in long alphanumeric format(see +COPS)

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+COPN +COPN: "00131","Test Network" +COPN: "546559","Test Net 222"

60

+COPN: "56231","A1" +COPN: "56263","A max." …… OK

Get neighbor cells +GNC

. Table: +GNC parameter command syntax

Command Possible response(s)

+GNC +GNC: list of possible <ncid>s

Description

This command is used to get the identity of the neighbor cells. The maximum number of neighbor cells is up to 6.

If any neighbor cell exists,

+GNC: <ncid1>[, <ncid2>[ ]…]

if there is no any neighbor cell,

+GNC:

<ncid>: string type; two byte cell ID in hexadecimal format

Informative example

AT+GNC? +GNC: 4ecc, 3c7d, 959f, 763a, 8a9d OK

2.1.4 Mobile control and status commands

Phone activity status +CPAS

Table: +CPAS parameter command syntax

Command Possible response(s)

+CPAS +CPAS: <pas>

+CPAS=? +CPAS: (list of supported <pas>s)

Description

+CME ERROR: <err>

Execution command returns the activity status <pas> of the ME. It can be used to interrogate the ME before requesting action from the phone.

61

Defined values

<pas>

0 Ready

1 Unavailable

2 Unknown

3 Ringing

4 Call in progress

5 Asleep

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CPAS=? +CPAS: (0-5) OK

AT+CPAS +CPAS: 0 OK

Set phone functionality +CFUN

Table: +CFUN parameter command syntax

Command Possible response(s) +CFUN=[<fun>[,<rst>]] +CME ERROR: <err> +CFUN? +CFUN: <fun>

CME ERROR: <err>

+CFUN=? +CFUN: (list of supported <fun>s),(list of

supported <rst>s) +CME ERROR: <err>

Description

Set command selects the level of functionality <fun> in the ME. Level “full functionality” is where the highest level of power is drawn. “Minimum functionality” is where minimum power is drawn. Level of functionality between these may also be specified by manufacturers. When supported by manufactured, ME resetting

62

with <rst> parameter may be utilized.

Defined values

<fun>

0 Minimum functionality 1 Full functionality

4 Disable phone both transmit and receive RF circuits <rst> 0: do not reset the ME before setting it to <fun> power level.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CFUN=? +CFUN: (0,1,4),(0) OK

AT+CFUN? +CFUN: 0 OK

AT+CFUN=1 OK

AT+CFUN=4 OK

(SIM not inserted) AT+CFUN? +CFUN: 0 OK

AT+CFUN=1 ERROR AT+CFUN? +CFUN: 1

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OK

Enter PIN +CPIN

Table: +CPIN parameter command syntax

Command Possible response(s) +CPIN=<pin>[, <newpin>] +CME ERROR: <err> +CPIN? +CPIN: <code>

+CME ERROR: <err>

Description

Set command sends to the MS a password that is necessary before it can be operated only SIM PIN. If no PIN request is pending, no action is taken. If SIM is useless or SIM is not inserted, an error message +CME ERROR, is returned to the TE.

Read command returns an alphanumeric string indicating whether some password is required or not.

Defined values

<pin>, <newpin>:string type values <code>: values reserved by the present document

READY ME is not pending for any password SIM PIN ME is waiting SIM PIN to be given SIM PIN2 ME is waiting SIM PIN2 to be given (this <code> is

recommended to be returned only when the last executed command resulted in PIN2 authentication failure (i.e. +CME ERROR: 17); if PIN2 is not entered right after the failure, it is recommended that ME does

not block it operation) SIM PUK ME is waiting SIM PUK to be given SIM PUK2 ME is waiting SIM PUK2 to be given (this <code> is

recommended to be returned only when the last

executed command resulted in PUK2 authentication

failure (i.e. +CME ERROR: 18); if PUK2 and new

PIN2are not entered right after the failure, it is

recommended that ME does not block it operation)

64

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. Power on (1) (CHV1 is disabled, SIM is ready) AT+CPIN? +CPIN: READY

2. Power on (1) (SIM not inserted) AT+CMEE=2 OK AT+CPIN?

+CME ERROR: SIM not inserted

Battery charge +CBC

Table: +CBC parameter command syntax

Command Possible response(s)

+CBC +CBC: <bcs>, <bcl>

+CME ERROR: <err>

+CBC=? +CBC: (list of supported <bcs>s), (list of

supported <bcl>s)

Description

Execution command returns battery connection status <bcs> and battery charge level <bcl> of the ME.

Defined values

<bcs>

0 ME is powered by the battery 1 ME has a battery connected, but is not powered by it 2 ME does not have a battery connected 3 Recognized power fault, calls inhibited

<bcl>

0 Battery is exhausted, or ME does not have a battery

connected

1…100

Battery has 1-100 percent of capacity remaining

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Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command

AT+CBC=? +CBC: (0-3),(0-100) OK

Signal quality +CSQ

Table: +CSQ parameter command syntax

Command Possible response(s)

+CSQ +CSQ: <rssi>,<ber>

+CME ERROR:<err>

+CSQ=? +CSQ: (list of supported <rssi>s), (list of

supported <ber>s)

Description

1. Execution command returns received signal strength indication <rssi> and channel bit error rate <ber> from the MS.

2. Test command returns values supported by the MS as compound values. Only support continuous unsolicited response.

Defined values

<rssi>:

0 -113dBm or less 1 -111dBm 2…30 31 -51dBm or greater

-109dBm ~ -53dBm

99 Not known or not detectable

<ber>:

99 Unknown or not detectable

Informative examples

-Initial the HyperTerminal

-Initial the MS

66

-AT Command

AT+CSQ=? +CSQ: (2-31,99), (99) OK

AT+CSQ +CSQ: 31, 99 OK

Restricted SIM access +CRSM

Table: +CRSM action command syntax

Command Possible response(s)

+CRSM=<command>[,<fileid> [,<P1>,<P2>,<P3>[,<data>]]]

+CRSM=?

+CRSM:<sw1>,<sw2>[,<response >]+CME ERROR: <err>

Description

By using this command instead of Generic SIM Access +CSIM TE application has easier but more limited access to the SIM database. Set command transmits to the ME the SIM <command> and its required parameters. ME handles internally all SIM-ME interface locking and file selection routines. As response to the command, ME sends the actual SIM information parameters and response data. ME error result code +CME ERROR may be returned when the command cannot be passed to the SIM, but failure in the execution of the command in the SIM is reported in <sw1> and <sw2> parameters.

Coordination of command requests to SIM and the ones issued by GSM/UMTS application inside the ME is implementation dependent. However the TE should be aware of the precedence of the GSM/UMTS application commands to the TE commands.

Defined values

<command> (command passed on by the ME to the SIM): 176 READ BINARY 178 READ RECORD 192 GET RESPONSE

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214 UPDATE BINARY 220 UPDATE RECORD 242 STATUS all other values are reserved

NOTE 1: The ME internally executes all commands necessary for selecting the desired file, before performing the actual command.

<fileid>: integer type; this is the identifier of a elementary datafile on SIM. Mandatory for every command except STATUS

NOTE 2: The range of valid file identifiers depends on the actual SIM and is defined in GSM 51.011 [28]. Optional files may not be present at all.

<P1>, <P2>, <P3>: integer type; parameters passed on by the ME to the SIM. These parameters are mandatory for every command, except GET RESPONSE and STATUS. The values are described in GSM 51.011 [28]

<data>: information which shall be written to the SIM (hexadecimal character format; refer +CSCS)

<sw1>, <sw2>: integer type; information from the SIM about the execution of the actual command. These parameters are delivered to the TE in both cases, on successful or failed execution of the command

<response>: response of a successful completion of the command previously issued (hexadecimal character format; refer +CSCS). STATUS and GET RESPONSE return data, which gives information about the current elementary datafield. This information includes the type of file and its size (refer GSM 51.011 [28]). After READ BINARY or READ RECORD command the requested data will be returned. <response> is not returned after a successful UPDATE BINARY or UPDATE RECORD command

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CRSM=192,12258,0,0,255

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+CRSM: 103,15 OK

Ringer sound level and ringer type select +CRSL

Table: +CRSL parameter command syntax

Command Possible response(s) +CRSL = <level > +CME ERROR: <err> +CRSL? +CRSL: <level > +CRSL=? +CRSL: (list of supported <level >)

Description

1. This command is used to select the incoming call ringer sound volume level of the ME.

2. Read command reads the current setting of ringer sound level.

3. Test command returns supported values as compound value.

4. For TI driver, the valid range of setting is 0 ~ 63. If the setting is larger than 63, then the ring volume is the same as 63.

5. The setting will not be stored. After power cycle, the setting will restore to default value “175”.

Defined values

<level>: integer type;

0-255 Ring sound level; 0:lowest gain, 255:highest

gain

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CRSL=? +CRSL: (0-255) OK

AT+CRSL? +CRSL: 175 OK

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Loudspeaker volume level +CLVL

Table: +CLVL parameter command syntax

Command Possible response(s) +CLVL = <level > +CME ERROR:<err> +CLVL? +CLVL: <level > +CLVL=? +CLVL: (list of <level >s)

Description

1. Set command is used to select the volume of the internal loudspeaker of the ME.

2. Read command reads the setting value of loudspeaker volume.

3. Test command returns supported values as compound value.

Defined values

<level> : integer type; the value of sound volume

0-255 0 for lowest gain, 255 for highest gain

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CLVL=? +CLVL: (0-255) OK

AT+CLVL? +CLVL: 175 OK

AT+CLVL=258 ERROR

Mute +CMUT

Table: +CMUT parameter command syntax

Command Possible response(s) +CMUT = <n> +CME ERROR:<err>

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+CMUT? +CMUT:<n > +CMUT=? +CMUT: (list of supported <n >S)

Description

1. This command is used to enable and disable the uplink voice muting during a voice call.

2. Read the current mode is mute on or mute off.

3. Test command returns supported values as compound value.

Defined values

<n> : integer type;

0 MUTE OFF 1 MUTE ON

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. Set command

AT+CMUT=1 OK

2. Set command

AT+CMUT=3 ERROR

3. Read command

AT+CMUT? +CMUT:0 OK

4. Test command

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

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Accumulated call meter +CACM

Table: +CACM parameter command syntax

Command Possible response(s) +CACM =[<passed>] +CME ERROR: <err> +CACM? +CACM: <acm>

+CME ERROR: <err>

Description

Set command resets the Advice of Charge related accumulated call meter value in SIM card or in the active application in the UICC file EF

. ACM contains the total

ACM

number of home units for both the current and preceding calls. SIM PIN2 is usually required to reset the value.

Defined values

<passwd> : string type; SIM PIN2 <acm>: string type

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CACM? +CACM: "000000" OK

Accumulated call meter maximum +CAMM

Table: +CAMM parameter command syntax

Command Possible response(s) +CAMM =[<passed>] +CME ERROR: <err> +CAMM? +CAMM: <acm>

+CME ERROR: <err>

Description

Set command sets the Advice of Charge related accumulated call meter maximum value in SIM card or in the active application in the UICC file EF

ACMmax

. ACMmax contains the maximum number oh home units allowed to be consumed by the subscriber.

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Defined values

<acmmax>: string type <passed>: string type: SIM PIN2

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CAMM? +CAMM: "000000" OK

Price per unit and currency table +CPUC

Table: +CPUC parameter command syntax

Command Possible response(s)

+CPUC=[<currency>,

+CME ERROR: <err> <ppu>,<passed>] +CPUC? +CPUC: <currency>, <ppu>

+CME ERROR: <err>

Description

Set command sets the parameters of Advice of Charge related price per unit and currency table in SIM card or in the active application in the UICC file EF

PUCT.

PUCT information can be used to convert the home units into currency units. SIM PIN2 is usually required to set the parameters.

Defined values

<currency>: string type; three character currency code; character set as specified by command select TE Character Set <ppu>: string type: price per unit; dot is used as a decimal separator.

Informative example

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CPUC?

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+CPUC: "","" OK AT+CPUC="NT","5.00" +CME ERROR: SIM PIN2 required

Call Meter maximum event +CCWE

Table: +CCWE parameter command syntax

Command Possible response(s) +CCWE=<mode> +CME ERROR: <err> +CCWE? +CCWE: <mode>

+CME ERROR: <err>

+CCWE=? +CCWE: (list of supported <mode>s)

+CME ERROR: <err>

Description

Shortly before the ACM (Accumulated Call Meter) maximum value is reached, an unsolicited result code +CCWV will be sent, if enabled by this command. The warning is issued approximately when 30 seconds call time remains. It is also issued when starting a call if less than 30 s call time remains. If setting fails in an ME error, +CME ERROR: <err> is returned. Read command returns the current setting.

Test command returns supported settings.

Defined values

<mode>: 0 Disable the call meter warning event 1 Enable the call meter warning event

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CCWE=? +CCWE: (0,1) OK

74

Set Voice Mail Number +CSVM

Table: +CSVM parameter command syntax

Command Possible response(s)

+CSVM=<mode>[,<number>[,<t

+CME ERROR: <err>

ype>]] +CSVM? +CSVM:<mode>,<number>,<type>

+CME ERROR: <err>

+CSVM=? +CSVM: (list of supported <mode>s), (list of

supported <type>s) +CME ERROR: <err>

Description

The number to the voice mail server is set with this command. The parameters <number>

and <type> can be left out if the parameter <mode> is set to 0. If setting fails, an ME

error, +CME ERROR: <err> is returned.

Read command returns the currently selected voice mail number and the status (i.e. enabled/disabled).

Test command returns supported <mode>s and <type>s.

Defined values

<mode>: 0 Disable the voice mail number. 1 Enable the voice mail number.

<number>: string type; Character string <0..9,+>, the maximum length of phone number is 40 digits (include prefix ‘+’ if exists)

<type>: integer type; Type of address octet. 129 ISDN / telephony numbering plan, national / international unknown 145 ISDN / telephony numbering plan, international number 161 ISDN / telephony numbering plan, national number

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128 - 255 Other values refer TS 24.008 section 10.5.4.7

<type>: type of address octet in integer format (refer TS 24.008 [8] sub clause

10.5.4.7); default 145 when dialing string includes international access code character "+", otherwise 129.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CSVM=? +CSVM: (0,1),(129,145,161) OK

AT+CSVM? +CSVM: 1,"188",129 OK

List all available AT commands +CLAC

Table: +CLAC parameter command syntax

Command Possible response(s)

+CLAC <AT Command1>[<CR><LF><AT

Command2>[…]] +CME ERROR: <err>

+CLAC? +CME ERROR: <err>

Description

Execution command causes the ME to return one or more lines of AT Commands. Note: This command only returns the AT commands that are available for the user.

Defined values

<AT Command>: Defines the AT command including the prefix AT. Test shall not contain the sequence 0<CR> or OK<CR>

Informative example

-Initial the HyperTerminal

-Initial the MS

76

-AT Command AT+CLAC AT+CACM AT+CAMM AT+CAOC ……

OK

2.1.5 Commands related with phonebook service

Select phonebook memory storage +CPBS

Table: +CPBS parameter command syntax

Command Possible response(s) +CPBS=<storage> +CME ERROR: <err> +CPBS? +CPBS: <storage>[,<used>,<total>]

+CME ERROR: <err>

+CPBS=? +CPBS: (list of supported <storage>s)

Description

1. Set command selects phonebook memory storage <storage> which is used by other phonebook commands. If settings fails in an MS error, +CME ERROR: <err> is returned.

2. Read command returns currently selected memory, this used entry numbers and the entire entry numbers in the selected storage.

3. Test command returns supported storages as compound value.

Defined values

<storage>:string type

“EN”

SIM/USIM (or ME) emergency number(+CPBW is not be applicable for this storage)

“FD” “DC”

SIM fix dialing-phonebook MTdialled calls list (+CPBW may not be applicable for this storage)

“LD” “RC” “SM” “MC” “ON”

SIM/UICC last dialing phonebook Last received umbers Abbreviated dialing numbers Last missed number Own number

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<used>: the used entry numbers within the selected storage. <total>: the all entry numbers within the selected storage.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. Set command AT+CPBS=”DC” OK

1. Read command AT+CBPS? +CPBS: "SM",17,100 OK

2. Test command AT+CPBS=? +CPBS: ("EN","FD","DC","RC","SM","MC","ON) OK

Read phonebook entries +CPBR

Table: +CPBR parameter command syntax

Command Possible response(s) +CPBR=<index1>[,<index2>] [+CPBR:

<index1>,<number>,<type>,<text>[[..]<CR> <LF>+CPBR: <index2>,<number>,<type>,<text>]] +CME ERROR:<err>

+CPBR=? +CPBR: (list of supported <index>s),

[<nlength>], [<tlength>] +CME ERROR:<err>

Description

1. Execution command returns phonebook entries in location number range <index1>..<index2> from the current phonebook memory storage selected with +CPBS. If <index2> is left out, only location <index1> is returned. Entry fields

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returned are location number <indexn>, phone number stored there <number>(of format <type>) and text <text> associated with the number. If all queried locations are empty (but available), no information text lines may be returned and +CME ERROR: <err> can be returned. If list setting fails in an ME error, +CME ERROR: <err> is returned.

2. If it is possible to show Chinese name in phone book, character set (+CSCS) has better to set “UCS2” first.

Defined values

<index1>,<index2>: integer type value in the range of location numbers of

phonebook memory. <number>: string type indicating the phone number of format <type> <type>: integer value indicating type of address octet in integer format. <text>: string type ;character set specified by command select TE character Set

+CSCS(details pls refer to Appendix) <nlength>: integer value indicating the maximum length of field <number> <tlength>: integer value indicating the maximum length of field <text>

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. Read the phonebook from index1 to index2 and neglect the blank record.

AT+CPBS=”SM” OK AT+CPBR=1,5 +CPBR:1,”27998800”,129,”David” +CPBR:3,”27998800”,129,”JENNY” +CPBR:5,”27998800”,129,”Davis” OK

2. Chinese name may appear in phone book (SM).

AT+CSCS=”UCS2” OK AT+CPBR=61,70 +CPBR: 61,"0920960846",129,"004D00410047" +CPBR: 62,"0928844716",129,"54335FB7660E" +CPBR: 63,"0928836001",129,"92809234"

79

+CPBR: 69,"01285295711130",129,"0041004C004C0045004E" +CPBR: 70,"0935657249",129,"0053002D0042004C00410043004B" OK

3. Read the phonebook of item index1

AT+CPBR=5 +CPBR: 5,”27998800”,129,”Davis” OK

Find phonebook entries +CPBF

Table: +CPBF parameter command syntax

Command Possible response(s)

+CPBF=<findtext> [+CPBF:<index1>,<number>,<type>,<text>]

+CME ERROR: <err>

+CPBF=? +CPBF: [<nlength>],[<tlength>]

+CME ERROR:<err>

Description

1. Execution command returns the phonebook entries (from the current phonebook memory storage selected with +CPBS which alphanumeric fields starting with the giving string <findtext>. Entry fields returned are location number <indexn>, phone number stored there <number> (of format <type>) and text <text> associated with the number. If listing fails in an ME error, +CME ERROR: <err> is returned.

2. Test command returns the maximum lengths of <number> and <text> fields. In case of SIM storage, the lengths may not be available.

3. The AT+CPBF=”” command can be used to display all phonebook entries sorted in alphabetical order.

4. This command is only available for the “SM” and “ME” phonebook.

5. It is possible to use this command with UCS2 strings. If a wrong UCS2 format is

entered, the string is considered as an ASCII string.

Defined values

<index1>: integer type value in the range of location numbers of phonebook

memory. <number>: string type indicating the phone number of format <type> <type>: integer value indicating type of address octet in integer format. <text>,<findtext>: string type ;character set specified by command select TE

80

character Set +CSCS(details pls refer to Appendix ) <nlength>: integer value indicating the maximum length of field <number> <tlength>: integer value indicating the maximum length of field <text>

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CPBS=”SM” OK ;;; List all phonebook entries start with “DA” AT+CPBF=”DA” +CPBF: 1,”27998800”,129,”DAVID” +CPBF: 5,”123456”,129,”dad” +CPBF: 8,”222222”,129,”Davis” +CPBF: 10,”99999”,129,”dAllen” OK

Write phonebook entry +CPBW

Table: +CPBW parameter command syntax

Command Possible response(s)

+CPBW=[<index>][,<numbe

+CME ERROR:<err> r>[,<type>[,<text>]]] +CPBW=? +CPBW: (list of supported

<index>s),[<nlength>],(list of supported

<type>s),[<tlength>]

+CME ERROR: <err>

Description

1. Set command writes phonebook entry in location number <index>of phonebook memory <storage> excluding “DC”, “LD”, “MC” and “RC”. Entry fields written are phone number <number>(in the format <type>) and text <text> associated with the number. If <index> is left out, but <number> is given, entry is written to the first free location in the phonebook (the implementation of this feature is manufacturer specific.) If the fields except for <index> are omitted, phonebook storage entry will be deleted. If writing fails in an ME error, +CME ERROR:<err> is returned.

81

Defined values

<index>:integer type values in the range of location numbers of phonebook memory <number>:string type; phone number <type>: type of address octet in integer format <text>,<findtext>: string type ;character set specified by command select TE

character Set +CSCS(details pls refer to Appendix ) <nlength>: integer value indicating the maximum length of field <number> <tlength>: integer value indicating the maximum length of field <text>

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command

1. AND, given <index> (*PC will check if FDN is disabled in advance)

AT+CSCS? +CSCS: “IRA” AT+CPBW=1,”27998800”, 129,”DAVID” OK

2. AND but <index> is left out (*PC will check if FDN is disabled in advance)

AT+CPBW=,”27998800”, 129,”DAVID” OK

3. Deleting entry

AT+CPBW=1 OK

Report Mobile Equipment error +CMEE

Table: +CMEE parameter command syntax

Command Possible response(s) +CPEE=[<n>] +CMEE? +CMEE: <n> +CMEE=? +CMEE: (list of supported <n>s)

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Description

Set command disables or enables the use of result code +CME ERROR: <err> as an indication of an error relating to the functionality of the ME. When enable, ME related errors cause +CME ERROR: <err> final result code instead of the regular ERROR final result code. ERROR is returned normally when error is related to syntax, invalid parameters, or TA functionality.

Defined values

<n>

0 Disable +CME ERROR: <err> result code and use ERROR instead 1 Enable +CME ERROR: <err> result code and use numeric <err>

values.

2 Enable +CME ERROR: <err> result code and use verbose <err>

values.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+CMEE=? +CMEE: (0-2) OK

AT+CMEE? +CMEE: 0 OK

AT+CMEE=1 OK AT+CMEE? +CMEE: 1 O K

2.1.6 Commands from TIA IS-101

Select mode +FCLASS

Table: +FCLASS parameter command syntax

Command Return

83

+FCLASS=<n> +FCLASS? <n> +FCLASS=? (list of supported <n>s)

Description

This command puts the TA into a particular mode of operation (data, fax, voice etc.). This causes the TA to process information in a manner suitable for that type of information (rather than for other types of information).

Defined values

The values and meanings of parameter <n> are specified in the following table. <n> Mode

0 data 1 fax class 1 (TIA-578-A)

1.0 fax class 1 (ITU-T T.31 [11]) 2 fax (manufacturer specific)

2.0 fax class 2 (ITU-T T.32 [12] and TIA-592)

3...7 reserved for other fax modes 8 voice

9...15 reserved for other voice modes

16..79 reserved 80 VoiceView (Radish)

81..255 reserved

Voice mode is of particular interest here, and has an additional result code +VCON. Specifically, +VCON indicates that the TA is entering the voice command mode and there is a voice connection to at least one audio input or output. This presupposes that some mechanism has previously initiated a connection to that audio I/O.

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+FCLASS=? 0,2.0,8 OK

84

AT+FCLASS?

0

OK

AT+FCLASS=2.0 OK

AT+FCLASS?

2.0 OK

DTMF and tone generation +VTS

Table: +VTS parameter command syntax

Command Return +VTS=<tone> OK

ERROR if there is no communication.

+VTS=? (list of supported <tone1>s),(list of supported

<tone2>s) ,(list of supported <duration>s)

NOTE: In GSM this operates only in voice mode.

Description

This command allows the transmission of DTMF tones and arbitrary tones (see note). These tones may be used (for example) when announcing the start of a recording period. The command is write only. In this profile of commands, this command does not operate in data or fax modes of operation (+FCLASS=0,1,2-7). NOTE: D is used only for dialling. The string parameter of the command consists of combinations of the following separated by commas:

1. <DTMF>. A single ASCII character in the set 0-9, #,*,A-D. This is interpreted as a single ACSII character whose duration is set by the +VTD command. NOTE: In GSM this operates only in voice mode.

2. [<tone1>,<tone2>,<duration>]. This is interpreted as a dual tone of frequencies <tone1> and <tone2>, lasting for a time <duration> (in 10 ms multiples). NOTE: This does not operate in GSM.

3. {<DTMF>,<duration>}. This is interpreted as a DTMF tone of different duration from that mandated by the +VTD command.

85

Informative examples

-Initial the HyperTerminal

-Initial the MS

-AT Command AT+VTS=? +VTS: (0,1,2,3,4,5,6,7,8,9,A,B,C,D,#,*) OK

/* Setup voice call first…. */ AT+VTS=1 OK AT+VTS=9 OK

Play DTMF tone +WDTMF

Table: +WDTMF parameter command syntax

Command Possible response(s)

+WDTMF=<isEnable>[,<dt mf>,<gain>,<duration>]

Description :

This specific command allows a DTMF tone to be played on the current

speaker. DTMF, gain and duration can be set.

This command is only used to play a DTMF tone. To send a DTMF over the

GSM network, use the +VTS command.

Defined values :

0: Stop playing. 1: Play a DTMF tone

<dtmf>

This parameter sets the DTMF to play in {0-9,*,#,A,B,C,D} (mandatory if

<mode>=1)

<gain> (0-15)

This parameter sets tone gain. By default, the value is 9.

<duration> (0-50)

This parameter sets the tone duration (unit of 100 ms).

86

When this parameter is 0 (default value), the duration is infinite, and the

DTMF tone can be stopped by AT+WDTMF=0.

Receive gain selection +VGR

Table: +VGR parameter command syntax

Command Return +VGR=<n> +VGR? <n> +VGR=? (list of supported <n>s)

Description

This command is used to tune the receive gain of speaker.

Defined values

n Receive gain 1 -6db 2 -5db 3 -4db 4 -3db 5 -2db 6 -1db 7 0db 8 +1db 9 +2db 10 +3db 11 +4db 12 +5db 13 +6db

Transmit gain selection +VGT

Table: +VGT parameter command syntax

Command Return +VGT=<n> +VGT? <n> +VGT=? (list of supported <n>s)

87

Description

This command is used to tune the transmit gain of microphone.

Defined values

n Transmit

gain 1 -12db 2 -11db 3 -10db 4 -9db 5 -8db 6 -7db 7 -6db 8 -5db 9 -4db 10 -3db 11 -2db 12 -1db 13 0db 14 +1db 15 +2db 16 +3db 17 +4db 18 +5db 19 +6db 20

+7db

21 +8db 22 +9db 23 +10db 24 +11db 25 +12db

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2.2 Commands related to short message service

SMS Text Mode & PDU Mode

Parameter Definitions

The following parameters are used in the subsequent clauses which describe all commands.

Message Storage Parameters

<index> integer type (1-256); value in the range of location numbers

supported by the associated memory

<mem1> string type; memory from which messages are read, and deleted;

defined value:

“BM” broadcast message storage “ME” ME message storage “MT” any of the storages associated with ME “SM” (U)SIM message storage “SR” status report storage

<mem2> string type; memory to which writing and sending operations are

made; refer <mem1> for defined values

<mem3> string type; memory to which received SMs are preferred to be

stored (unless forwarded directly to TE; refer command New Message Indications +CNMI); refer <mem1> for defined values

<stat> integer type in PDU mode (default 0), or string type in text mode

(default "REC UNREAD"); indicates the status of message in memory; defined values:

0 "REC UNREAD" received unread message (i.e. new

message)

1 "REC READ" received read message 2 "STO UNSENT" stored unsent message (only applicable to

SMS) 3 "STO SENT" stored sent message (only applicable toSMS) 4 "ALL" all messages (only applicable to +CMGL command)

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Message Data Parameters

<alpha> string type alphanumeric representation of <da> or <oa>

corresponding to the entry found in MT phonebook; used character set should be the one selected with command Select TE Character Set +CSCS

<da> 3GPP TS 23.40 TP-Destination-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet characters) are converted to characters of the currently selected TE character set (refer command +CSCS in 3GPP TS 27.07); type of address given by <toda>

<data> In the case of SMS: 3GPP TS 23.040 TP-User-Data in text mode

responses; format:

- if <dcs> indicates that 3GPP TS 23.038 default alphabet is used and <fo> indicates that 3GPP TS 23.040 TP-UserData-Header-Indication is not set:

- if TE character set other than "HEX" (refer +CSCS) : ME/TA converts GSM alphabet into current TE character set according to rules of Annex A

- if TE character set is "HEX": ME/TA converts each 7-bit character of GSM alphabet into two IRA character long

hexadecimal number (e.g. character Π (GSM 23) is presented as 17 (IRA 49 and 55))

- if <dcs> indicates that 8-bit or UCS2 data coding scheme is used, or <fo> indicates that GSM 03.40 TP-User-Data-Header-Indication is set: ME/TA converts each 8-bit octet into two IRA character long hexadecimal number (e.g. octet with integer value 42 is presented to TE as two characters 2A (IRA 50 and 65))

<dcs> depending on the command or result code: 3GPP TS 23.038

SMS Data Coding Scheme (default 0)

<dt> GSM 03.40 TP-Discharge-Time in time-string format:

“yy/MM/dd,hh:mm:ss±zz”, where characters indicate year (two last digits), month, day, hour, minutes, seconds and time zone. E.g. 6th of May 1994, 22:10:00 GMT+2 hours equals to “94/05/06,22:10:00+08”

<fo> depending on the command or result code: first octet of 3GPP

23.040 SMS-DELIVER, SMS-SUBMIT (default 17),

SMS-STATUS-REPORT, or SMS-COMMAND (default 2) in

90

integer format

<length> Integer type value indicating in the text mode (+CMGF=1) the

length of the message body <data> in characters; or in PDU mode (+CMGF=0), the length of the actual TP data unit in octets (i.e. the RP layer SMSC address octets are not counted in the

length) <mr> 3GPP TS 23.040 TP-Message-Reference in integer format <oa> 3GPP TS 23.040 TP-Originating-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet

characters) are converted to characters of the currently selected

TE character set (refer +CSCS); type of address given by

<tooa> <pdu> In the case of SMS: 3GPP TS24.011 SC address followed by

3GPP TS 23.040 TPDU in hexadecimal format: ME/TA converts

each octet of TP data unit into two IRA character long

hexadecimal number (e.g. octet with integer value 42 is

presented to TE as two characters 2A (IRA 50 and 65)) <pid> 3GPP TS 23.040 TP-Protocol-Identifier in integer format (default

0)

0x00 plain text

0x21 telex

0x22 group 3 telefax

0x23 group 4 telefax

0x24 voice telephone

0x25 ERMES

0x26 National paging system

0x32 Internet Electronic Mail <ra> 3GPP TS 23.040 TP-Recipient-Address Address-Value field in

string format; BCD numbers (or GSM default alphabet

characters) are converted to characters of the currently selected

TE character set (refer +CSCS); type of address given by

<tora> <sca> 3GPP TS 24.011 RP SC address Address-Value field in string

format; BCD numbers (or GSM default alphabet characters) are

converted to characters of the currently selected TE character

set (refer +CSCS); type of address given by <tosca> <scts> 3GPP TS 23.040 TP-Service-Centre-Time-Stamp in time-string

format (refer <dt>)

91

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