SIM800 Series AT Command Manual Datasheet by Adafruit Industries LLC

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SIM800 Series_AT Command
Manual_V1.01
Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.01 2 2013-07-23
Document Title: SIM800 Series AT Commands Manual
Version: 1.01
Date: 2013-07-23
Status: Release
Document Control ID: SIM800 Series_AT Command Manual_V1.01
General Notes
SIMCom offers this information as a service to its customers, to support application and
engineering efforts that use the products designed by SIMCom. The information provided is based
upon requirements specifically provided to SIMCom by the customers. SIMCom has not
undertaken any independent search for additional relevant information, including any information
that may be in the customer’s possession. Furthermore, system validation of this product designed
by SIMCom within a larger electronic system remains the responsibility of the customer or the
customer’s system integrator. All specifications supplied herein are subject to change.
Copyright
This document contains proprietary technical information which is the property of Shanghai
SIMCom Wireless Solutions Ltd, copying of this document and giving it to others and the using or
communication of the contents thereof, are forbidden without express authority. Offenders are
liable to the payment of damages. All rights reserved in the event of grant of a patent or the
registration of a utility model or design. All specification supplied herein are subject to change
without notice at any time.
Copyright © Shanghai SIMCom Wireless Solutions Ltd. 2013
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Contents
Version History.........................................................................................13
1 Introduction............................................................................................16
1.1 Scope of the document .......................................................................................16
1.2 Related documents..............................................................................................16
1.3 Conventions and abbreviations ..........................................................................16
1.4 AT Command syntax ..........................................................................................16
1.4.1 Basic syntax ...................................................................................................................17
1.4.2 S Parameter syntax.........................................................................................................17
1.4.3 Extended Syntax.............................................................................................................17
1.4.4 Combining AT commands on the same Command line.................................................17
1.4.5 Entering successive AT commands on separate lines.....................................................18
1.5 Supported character sets.....................................................................................18
1.6 Flow control .......................................................................................................18
1.6.1 Software flow control (XON/XOFF flow control).........................................................18
1.6.2 Hardware flow control (RTS/CTS flow control)............................................................19
1.7 Definitions ..........................................................................................................19
1.7.1 Parameter Saving Mode .................................................................................................19
1.7.2 Max Response Time.......................................................................................................20
2 AT Commands According to V.25TER ................................................21
2.1 Overview of AT Commands According to V.25TER .........................................21
2.2 Detailed Description of AT Commands According to V.25TER ........................22
2.2.1 A/ Re-issues the Last Command Given.......................................................................22
2.2.2 ATA Answer an Incoming Call....................................................................................22
2.2.3 ATD Mobile Originated Call to Dial A Number..........................................................23
2.2.4 ATD><n> Originate Call to Phone Number in Current Memory................................25
2.2.5 ATD><str> Originate Call to Phone Number in Memory Which Corresponds to
Field <str>...............................................................................................................................26
2.2.6 ATDL Redial Last Telephone Number Used...............................................................27
2.2.7 ATE Set Command Echo Mode ..................................................................................28
2.2.8 ATH Disconnect Existing Connection.........................................................................29
2.2.9 ATI Display Product Identification Information .........................................................29
2.2.10 ATL Set Monitor speaker loudness............................................................................29
2.2.11 ATM Set Monitor Speaker Mode ..............................................................................29
2.2.12 +++ Switch from Data Mode or PPP Online Mode to Command Mode ..................30
2.2.13 ATO Switch from Command Mode to Data Mode....................................................30
2.2.14 ATP Select Pulse Dialling..........................................................................................30
2.2.15 ATQ Set Result Code Presentation Mode..................................................................31
2.2.16 ATS0 Set Number of Rings before Automatically Answering the Call.....................31
2.2.17 ATS3 Set Command Line Termination Character .....................................................32
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2.2.18 ATS4 Set Response Formatting Character ................................................................32
2.2.19 ATS5 Set Command Line Editing Character.............................................................33
2.2.20 ATS6 Pause Before Blind Dialling............................................................................33
2.2.21 ATS7 Set Number of Seconds to Wait for Connection Completion..........................34
2.2.22 ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in
Dial String of D Command .....................................................................................................34
2.2.23 ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier..............35
2.2.24 ATT Select Tone Dialing ...........................................................................................35
2.2.25 ATV TA Response Format .......................................................................................35
2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress .....................36
2.2.27 ATZ Reset Default Configuration .............................................................................37
2.2.28 AT&C Set DCD Function Mode ...............................................................................37
2.2.29 AT&D Set DTR Function Mode................................................................................38
2.2.30 AT&F Factory Defined Configuration ......................................................................38
2.2.31 AT&V Display Current Configuration ......................................................................38
2.2.32 AT&W Store Active Profile ......................................................................................39
2.2.33 AT+GCAP Request Complete TA Capabilities List ..................................................40
2.2.34 AT+GMI Request Manufacturer Identification .........................................................41
2.2.35 AT+GMM Request TA Model Identification ............................................................41
2.2.36 AT+GMR Request TA Revision Identification of Software Release.........................41
2.2.37 AT+GOI Request Global Object Identification.........................................................42
2.2.38 AT+GSN Request TA Serial Number Identification (IMEI) .....................................42
2.2.39 AT+ICF Set TE-TA Control Character Framing........................................................43
2.2.40 AT+IFC Set TE-TA Local Data Flow Control ..........................................................44
2.2.41 AT+IPR Set TE-TA Fixed Local Rate .......................................................................44
2.2.42 AT+HVOIC Disconnect Voice Call Only..................................................................46
3 AT Commands According to 3GPP TS 27.007.....................................47
3.1 Overview of AT Command According to 3GPP TS 27.007 ...............................47
3.2 Detailed Descriptions of AT Command According to 3GPP TS 27.007 ............48
3.2.1 AT+CACM Accumulated Call Meter (ACM) Reset or Query....................................48
3.2.2 AT+CAMM Accumulated Call Meter Maximum (ACM max) Set or Query .............49
3.2.3 AT+CAOC Advice of Charge .....................................................................................50
3.2.4 AT+CBST Select Bearer Service Type........................................................................51
3.2.5 AT+CCFC Call Forwarding Number and Conditions Control ....................................52
3.2.6 AT+CCWA Call Waiting Control ................................................................................53
3.2.7AT+CEER Extended Error Report ...............................................................................55
3.2.8 AT+CGMI Request Manufacturer Identification ........................................................57
3.2.9 AT+CGMM Request Model Identification..................................................................58
3.2.10 AT+CGMR Request TA Revision Identification of Software Release ......................58
3.2.11 AT+CGSN Request Product Serial Number Identification (Identical with +GSN)...58
3.2.12 AT+CSCS Select TE Character Set...........................................................................59
3.2.13 AT+CSTA Select Type of Address ............................................................................60
3.2.14 AT+CHLD Call Hold and Multiparty........................................................................60
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3.2.15 AT+CIMI Request International Mobile Subscriber Identity....................................61
3.2.16 AT+CLCC List Current Calls of ME.........................................................................62
3.2.17 AT+CLCK Facility Lock...........................................................................................63
3.2.18 AT+CLIP Calling Line Identification Presentation ...................................................65
3.2.19 AT+CLIR Calling Line Identification Restriction.....................................................66
3.2.20 AT+CMEE Report Mobile Equipment Error.............................................................67
3.2.21 AT+COLP Connected Line Identification Presentation ............................................68
3.2.22 AT+COPS Operator Selection...................................................................................69
3.2.23 AT+CPAS Phone Activity Status...............................................................................71
3.2.24 AT+CPBF Find Phonebook Entries...........................................................................71
3.2.25 AT+CPBR Read Current Phonebook Entries ............................................................73
3.2.26 AT+CPBS Select Phonebook Memory Storage.........................................................73
3.2.27 AT+CPBW Write Phonebook Entry ..........................................................................74
3.2.28 AT+CPIN Enter PIN..................................................................................................75
3.2.29 AT+CPWD Change Password...................................................................................76
3.2.30 AT+CR Service Reporting Control ...........................................................................77
3.2.31 AT+CRC Set Cellular Result Codes for Incoming Call Indication ...........................78
3.2.32 AT+CREG Network Registration..............................................................................79
3.2.33 AT+CRLP Select Radio Link Protocol Parameters ...................................................80
3.2.34 AT+CRSM Restricted SIM Access ...........................................................................81
3.2.35 AT+CSQ Signal Quality Report ................................................................................82
3.2.36 AT+FCLASS FAX: Select, Read or Test Service Class ............................................83
3.2.37 AT+FMI FAX: Report Manufactured ID...................................................................83
3.2.38 AT+FMM FAX: Report Model ID ............................................................................84
3.2.39 AT+FMR FAX: Report Revision ID .........................................................................84
3.2.40 AT+VTD Tone Duration............................................................................................85
3.2.41 AT+VTS DTMF and Tone Generation ......................................................................85
3.2.42 AT+CMUX Multiplexer Control...............................................................................86
3.2.43 AT+CNUM Subscriber Number................................................................................87
3.2.44 AT+CPOL Preferred Operator List............................................................................88
3.2.45 AT+COPN Read Operator Names.............................................................................89
3.2.46 AT+CFUN Set Phone Functionality ..........................................................................90
3.2.47 AT+CCLK Clock.......................................................................................................91
3.2.48 AT+CSIM Generic SIM Access ................................................................................91
3.2.49 AT+CALM Alert Sound Mode..................................................................................92
3.2.50 AT+CALS Alert Sound Select...................................................................................93
3.2.51 AT+CRSL Ringer Sound Level.................................................................................93
3.2.52 AT+CLVL Loud Speaker Volume Level ...................................................................94
3.2.53 AT+CMUT Mute Control..........................................................................................95
3.2.54 AT+CPUC Price Per Unit and Currency Table..........................................................95
3.2.55 AT+CCWE Call Meter Maximum Event ..................................................................96
3.2.56 AT+CBC Battery Charge...........................................................................................97
3.2.57 AT+CUSD Unstructured Supplementary Service Data.............................................98
3.2.58 AT+CSSN Supplementary Services Notification ......................................................98
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4 AT Commands According to 3GPP TS 27.005...................................101
4.1 Overview of AT Commands According to 3GPP TS 27.005............................101
4.2 Detailed Descriptions of AT Commands According to 3GPP TS 27.005.........101
4.2.1 AT+CMGD Delete SMS Message.............................................................................101
4.2.2 AT+CMGF Select SMS Message Format .................................................................102
4.2.3 AT+CMGL List SMS Messages from Preferred Store..............................................103
4.2.4 AT+CMGR Read SMS Message...............................................................................106
4.2.5 AT+CMGS Send SMS Message................................................................................109
4.2.6 AT+CMGW Write SMS Message to Memory .......................................................... 110
4.2.7 AT+CMSS Send SMS Message from Storage .......................................................... 111
4.2.8 AT+CNMI New SMS Message Indications .............................................................. 112
4.2.9 AT+CPMS Preferred SMS Message Storage ............................................................ 115
4.2.10 AT+CRES Restore SMS Settings............................................................................ 116
4.2.11 AT+CSAS Save SMS Settings ................................................................................116
4.2.12 AT+CSCA SMS Service Center Address ................................................................117
4.2.13 AT+CSCB Select Cell Broadcast SMS Messages................................................... 118
4.2.14 AT+CSDH Show SMS Text Mode Parameters .......................................................119
4.2.15 AT+CSMP Set SMS Text Mode Parameters ...........................................................120
4.2.16 AT+CSMS Select Message Service.........................................................................121
5 AT Commands for SIM Application Toolkit ......................................123
5.1 Overview ..........................................................................................................123
5.2 Detailed Descriptions of Commands................................................................123
5.2.1 AT+STKTRS STK Terminal Response.....................................................................123
5.2.2 AT+STKENVS STK Envelope Command................................................................124
5.2.3 AT+STKCALL STK call setup .................................................................................125
5.2.4 AT+STKSMS STK SMS delivery.............................................................................125
5.2.5 AT+STKSS STK SS setup ........................................................................................126
5.2.6 AT+STKUSSD STK USSD setup .............................................................................126
5.2.7 AT+STKDTMF STK sending DTMF .......................................................................127
5.2.8 +STKPCI STK Proactive Command Indication .......................................................127
5.2.9 AT+STKMENU STK Main menu command ............................................................128
5.2.10 AT+STKPCIS STK URC switch command ............................................................129
6 AT Commands Special for SIMCom ..................................................130
6.1 Overview ..........................................................................................................130
6.2 Detailed Descriptions of Commands................................................................131
6.2.1 AT+SIDET Change the Side Tone Gain Level.......................................................131
6.2.2 AT+CPOWD Power off............................................................................................132
6.2.3 AT+SPIC Times Remained to Input SIM PIN/PUK.................................................132
6.2.4 AT+CMIC Change the Microphone Gain Level.......................................................133
6.2.5 AT+CALA Set Alarm Time......................................................................................134
6.2.6 AT+CALD Delete Alarm..........................................................................................135
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6.2.7 AT+CADC Read ADC .............................................................................................135
6.2.8 AT+CSNS Single Numbering Scheme .....................................................................136
6.2.9 AT+CDSCB Reset Cell Broadcast............................................................................136
6.2.10 AT+CMOD Configure Alternating Mode Calls .....................................................137
6.2.11 AT+CFGRI Indicate RI When Using URC ............................................................137
6.2.12 AT+CLTS Get Local Timestamp............................................................................138
6.2.13 AT+CLDTMF Local DTMF Tone Generation .......................................................139
6.2.14 AT+CDRIND CS Voice/Data Call Termination Indication ...................................140
6.2.15 AT+CSPN Get Service Provider Name from SIM ..................................................141
6.2.16 AT+CCVM Get and Set the Voice Mail Number on the SIM .................................141
6.2.17 AT+CBAND Get and Set Mobile Operation Band .................................................142
6.2.18 AT+CHF Configure Hands Free Operation.............................................................143
6.2.19 AT+CHFA Swap the Audio Channels .....................................................................143
6.2.20 AT+CSCLK Configure Slow Clock ........................................................................144
6.2.21 AT+CENG Switch On or Off Engineering Mode ...................................................145
6.2.22 AT+SCLASS0 Store Class 0 SMS to SIM When Received Class 0 SMS ..............146
6.2.23 AT+CCID Show ICCID ..........................................................................................147
6.2.24 AT+CMTE Set Critical Temperature Operating Mode or Query Temperature ......147
6.2.25 AT+CMGDA Delete All SMS................................................................................148
6.2.26 AT+STTONE Play SIM Toolkit Tone....................................................................149
6.2.27 AT+SIMTONE Generate Specifically Tone...........................................................150
6.2.28 AT+CCPD Enable or Disable Alpha String............................................................150
6.2.29 AT+CGID Get SIM Card Group Identifier.............................................................151
6.2.30 AT+MORING Show State of Mobile Originated Call............................................151
6.2.31 AT+CMGHEX Enable or Disable Sending Non-ASCII Character SMS ...............152
6.2.32 AT+CCODE Configure SMS Code Mode..............................................................153
6.2.33 AT+CIURC Enable or Disable Initial URC Presentation.......................................153
6.2.34 AT+CPSPWD Change PS Super Password ............................................................154
6.2.35 AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications .................154
6.2.36 AT+CGMSCLASS Change GPRS Multislot Class ................................................155
6.2.37 AT+CDEVICE View Current Flash Device Type ..................................................156
6.2.38 AT+CCALR Call Ready Query ..............................................................................156
6.2.39 AT+GSV Display Product Identification Information.............................................156
6.2.40 AT+SGPIO Control the GPIO.................................................................................157
6.2.41 AT+SPWM Generate the Pulse-Width-Modulation ................................................157
6.2.42 AT+ECHO Echo Cancellation Control ...................................................................158
6.2.43 AT+CAAS Control Auto Audio Switch ..................................................................159
6.2.44 AT+SVR Configure Voice Coding Type for Voice Calls.........................................160
6.2.45 AT+GSMBUSY Reject Incoming Call....................................................................161
6.2.46 AT+CEMNL Set the List of Emergency Number ...................................................161
6.2.47 AT*CELLLOCK Set the List of ARFCN Which Needs to Be Locked...................162
6.2.48 AT+SLEDS Set the Timer Period of Net Light .......................................................163
6.2.49 AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring...............164
6.2.50 AT+CEXTERNTONE Close or Open the Microphone...........................................165
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6.2.51 AT+CNETLIGHT Close the Net Light or Open It to Shining ................................165
6.2.52 AT+CWHITELIST Set the White List ....................................................................166
6.2.53 AT+CSDT Switch On or Off Detecting SIM Card.................................................166
6.2.54 AT+CSMINS SIM Inserted Status Reporting.........................................................167
6.2.55 AT+CSGS Netlight Indication of GPRS Status ......................................................168
6.2.56 AT+CMICBIAS Close or Open the MICBIAS ..........................................................168
7 AT Commands for GPRS Support ......................................................170
7.1 Overview of AT Commands for GPRS Support...............................................170
7.2 Detailed Descriptions of AT Commands for GPRS Support............................170
7.2.1 AT+CGATT Attach or Detach from GPRS Service ..................................................170
7.2.2 AT+CGDCONT Define PDP Context .......................................................................171
7.2.3 AT+CGQMIN Quality of Service Profile (Minimum Acceptable) ...........................172
7.2.4 AT+CGQREQ Quality of Service Profile (Requested) .............................................173
7.2.5 AT+CGACT PDP Context Activate or Deactivate....................................................175
7.2.6 AT+CGDATA Enter Data State .................................................................................176
7.2.7 AT+CGPADDR Show PDP Address .........................................................................176
7.2.8 AT+CGCLASS GPRS Mobile Station Class.............................................................177
7.2.9 AT+CGEREP Control Unsolicited GPRS Event Reporting......................................177
7.2.10 AT+CGREG Network Registration Status ..............................................................178
7.2.11 AT+CGSMS Select Service for MO SMS Messages ..............................................179
8 AT Commands for TCPIP Application Toolkit ..................................181
8.1 Overview ..........................................................................................................181
8.2 Detailed Descriptions of Commands................................................................182
8.2.1 AT+CIPMUX Start Up Multi-IP Connection ............................................................182
8.2.2 AT+CIPSTART Start Up TCP or UDP Connection...................................................182
8.2.3 AT+CIPSEND Send Data Through TCP or UDP Connection...................................184
8.2.4 AT+CIPQSEND Select Data Transmitting Mode .....................................................186
8.2.5 AT+CIPACK Query Previous Connection Data Transmitting State..........................187
8.2.6 AT+CIPCLOSE Close TCP or UDP Connection .....................................................187
8.2.7 AT+CIPSHUT Deactivate GPRS PDP Context ........................................................188
8.2.8 AT+CLPORT Set Local Port .....................................................................................188
8.2.9 AT+CSTT Start Task and Set APN, USER NAME, PASSWORD...........................189
8.2.10 AT+CIICR Bring Up Wireless Connection with GPRS or CSD .............................190
8.2.11 AT+CIFSR Get Local IP Address............................................................................190
8.2.12 AT+CIPSTATUS Query Current Connection Status ...............................................191
8.2.13 AT+CDNSCFG Configure Domain Name Server...................................................192
8.2.14 AT+CDNSGIP Query the IP Address of Given Domain Name...............................193
8.2.15 AT+CIPHEAD Add an IP Head at the Beginning of a Package Received..............193
8.2.16 AT+CIPATS Set Auto Sending Timer .....................................................................194
8.2.17 AT+CIPSPRT Set Prompt of ‘>’ When Module Sends Data...................................195
8.2.18 AT+CIPSERVER Configure Module as Server ......................................................195
8.2.19 AT+CIPCSGP Set CSD or GPRS for Connection Mode ........................................196
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8.2.20 AT+CIPSRIP Show Remote IP Address and Port When Received Data ................197
8.2.21 AT+CIPDPDP Set Whether to Check State of GPRS Network Timing ..................198
8.2.22 AT+CIPMODE Select TCPIP Application Mode....................................................198
8.2.23AT+CIPCCFG Configure Transparent Transfer Mode ............................................199
8.2.24 AT+CIPSHOWTP Display Transfer Protocol in IP Head When Received Data.....200
8.2.25 AT+CIPUDPMODE UDP Extended Mode.............................................................201
8.2.26 AT+CIPRXGET Get Data from Network Manually ...............................................202
8.2.27 AT+CIPSCONT Save TCPIP Application Context .................................................204
8.2.28 AT+CIPRDTIMER Set Remote Delay Timer ........................................................204
8.2.29 AT+CIPSGTXT Select GPRS PDP context ...........................................................205
9 AT Commands for IP Application.......................................................206
9.1 Overview ..........................................................................................................206
9.2 Detailed Descriptions of Commands................................................................206
9.2.1 AT+SAPBR Bearer Settings for Applications Based on IP.......................................206
10 AT Commands for PING Support .....................................................208
10.1 Overview ........................................................................................................208
10.2 Detailed Descriptions of Commands..............................................................208
10.2.1 AT+CIPPING PING Request..................................................................................208
10.2.2 AT+CIPCTL Set the Mode When Receiving an IP Packet .....................................209
10.2.3 AT+CIPFLT Set the Rules of IP Filter ....................................................................210
11 AT Commands for HTTP Application ..............................................212
11.1 Overview ........................................................................................................212
11.2 Detailed Descriptions of Commands..............................................................212
11.2.1 AT+HTTPINIT Initialize HTTP Service .................................................................212
11.2.2 AT+HTTPTERM Terminate HTTP Service ............................................................212
11.2.3 AT+HTTPPARA Set HTTP Parameters Value ........................................................213
11.2.4 AT+HTTPDATA Input HTTP Data .........................................................................214
11.2.5 AT+HTTPACTION HTTP Method Action .............................................................215
11.2.6 AT+HTTPREAD Read the HTTP Server Response................................................217
11.2.7 AT+HTTPSCONT Save HTTP Application Context ..............................................218
11.2.8 AT+HTTPSTATUS Read HTTP Status ...................................................................219
12 AT Commands for FTP Application .................................................220
12.1 Overview ........................................................................................................220
12.2 Detailed Descriptions of Commands..............................................................220
12.2.1 AT+FTPPORT Set FTP Control Port ......................................................................220
12.2.2 AT+FTPMODE Set Active or Passive FTP Mode ..................................................221
12.2.3 AT+FTPTYPE Set the Type of Data to Be Transferred...........................................222
12.2.4 AT+FTPPUTOPT Set FTP Put Type .......................................................................222
12.2.5 AT+FTPCID Set FTP Bearer Profile Identifier .......................................................223
12.2.6 AT+FTPREST Set Resume Broken Download .......................................................223
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12.2.7 AT+FTPSERV Set FTP Server Address ..................................................................224
12.2.8 AT+FTPUN Set FTP User Name ............................................................................224
12.2.9 AT+FTPPW Set FTP Password ...............................................................................225
12.2.10 AT+FTPGETNAME Set Download File Name ....................................................225
12.2.11 AT+FTPGETPATH Set Download File Path.........................................................226
12.2.12 AT+FTPPUTNAME Set Upload File Name .........................................................227
12.2.13 AT+FTPPUTPATH Set Upload File Path..............................................................227
12.2.14 AT+FTPGET Download File ................................................................................228
12.2.15 AT+FTPPUT Set Upload File ...............................................................................229
12.2.16 AT+FTPSCONT Save FTP Application Context ..................................................230
12.2.17 AT+FTPDELE Delete Specified File in FTP Server .............................................231
12.2.18 AT+FTPSIZE Get the Size of Specified File in FTP Server .................................231
12.2.19 AT+FTPSTATE Get the FTP State ........................................................................232
12.2.20 AT+FTPEXTPUT Extend Upload File.....................................................................232
12.2.21 AT+FTPMKD Make Directory on the Remote Machine ......................................233
12.2.22 AT+FTPRMD Remove Directory on the Remote Machine ..................................234
12.2.23 AT+FTPLIST List Contents of Directory on the Remote Machine.......................234
13 AT Commands for GSM Location Application ................................236
13.1 Overview ........................................................................................................236
13.2 Detailed Descriptions of Commands..............................................................236
13.2.1 AT+CIPGSMLOC GSM Location and Time ............................................................236
14 AT Commands for Email Application...............................................238
14.1 Overview ........................................................................................................238
14.2 Detailed Descriptions of Commands..............................................................239
14.2.1 AT+EMAILCID Set Email Bearer Profile Identifier..............................................239
14.2.2 AT+EMAILTO Set Timeout Value of SMTP/POP3 Server Response ..................239
14.2.3 AT+SMTPSRV Set SMTP Server Address and Port..............................................240
14.2.4 AT+SMTPAUTH Set User Name and Password for SMTP Authentication..........241
14.2.5 AT+SMTPFROM Set Sender Address and Name ..................................................241
14.2.6 AT+SMTPRCPT Set the Email Recipient(TO/CC/BCC) Address and Name........242
14.2.7 AT+SMTPSUB Set the Email Subject....................................................................243
14.2.8 AT+SMTPBODY Set the Email Body ...................................................................244
14.2.9 AT+SMTPFILE Set the Email Attachment ............................................................244
14.2.10 AT+SMTPSEND Send the Email.........................................................................245
14.2.11 AT+SMTPFT Transfer the Email Attachment ......................................................246
14.2.12 AT+SMTPCS Set the Email Charset ....................................................................247
14.2.13 AT+POP3SRV Set POP3 Server and Account .....................................................248
14.2.14 AT+POP3IN Log in POP3 Server ........................................................................249
14.2.15 AT+POP3NUM Get Email Number and Total Size..............................................249
14.2.16 AT+POP3LIST Get the Specific Email Size ........................................................250
14.2.17 AT+POP3UIDL Get the Specific Email Unique-id ..............................................251
14.2.18 AT+POP3CMD Get Multi-line Response.............................................................252
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14.2.19 AT+POP3READ Read Multi-line Response ........................................................253
14.2.20 AT+POP3DEL Mark the Specific Email to Delete...............................................255
14.2.21 AT+POP3RSET Unmark the Emails that Be Marked as Deleted.........................255
14.2.22 AT+POP3OUT Log Out POP3 Server..................................................................256
15 AT Commands for MMS Application...............................................258
15.1 Overview ........................................................................................................258
15.2 Detailed Descriptions of Commands..............................................................259
15.2.1 AT+CMMSCURL Set the URL of the mms center ................................................259
15.2.2 AT+CMMSPROTO Set the protocol parameter and MMS proxy..........................259
15.2.3 AT+CMMSCID Set the network parameters for MMS ..........................................260
15.2.4 AT+CMMSSENDCFG Set the parameters for sending MMS ...............................261
15.2.5 AT+CMMSEDIT Enter or exit edit mode ..............................................................262
15.2.6 AT+CMMSDOWN Download the file data or title from UART............................263
15.2.7 AT+CMMSDELFILE Delete the file of the edited MMS by file index .................264
15.2.8 AT+CMMSSEND Start mms sending ....................................................................264
15.2.9 AT+CMMSRECP Add recipients...........................................................................265
15.2.10 AT+CMMSCC Add copy recipients.....................................................................266
15.2.11 AT+CMMSBCC Add Secret Recipients...............................................................266
15.2.12 AT+CMMSDELRECP Delete recipients..............................................................267
15.2.13 AT+CMMSDELCC Delete copy recipients..........................................................268
15.2.14 AT+CMMSDELBCC Delete secret recipients .....................................................268
15.2.15 AT+CMMSRECV Receive MMS ........................................................................269
15.2.16 AT+CMMSVIEW Get the MMS into buffer and show the information ..............270
15.2.17 AT+CMMSREAD Read the given file of the MMS in the buffer ........................271
15.2.18 AT+CMMSRDPUSH Read the information of the MMS PUSH message...........271
15.2.19 AT+CMMSUA Set User Agent ............................................................................273
15.2.20 AT+CMMSPROFILE Set User Agent Profile ......................................................273
15.2.21 AT+CMMSTIMEOUT Set MMS Timeout...........................................................274
15.2.22 AT+CMMSSTATUS Get MMS Status ................................................................275
15.2.23 AT+CMMSINIT Initialize MMS Function...........................................................276
15.2.24 AT+CMMSTERM Exit MMS Function ...............................................................276
15.2.25 AT+CMMSSCONT Save MMS Context..............................................................276
16 AT Commands for DDET Application..............................................278
16.1 Overview ........................................................................................................278
16.2 Detailed Descriptions of Commands..............................................................278
16.2.1 AT+DDET DTMF Detection Control.....................................................................278
17 AT Commands for RECORD Application........................................279
17.1 Overview ........................................................................................................279
17.2 Detailed Descriptions of Commands..............................................................279
17.2.1 AT+CREC record operation....................................................................................279
18 AT Commands for TTS Application .................................................283
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18.1 Overview ........................................................................................................283
18.2 Detailed Descriptions of Commands..............................................................283
18.2.1 AT+CTTS TTS Operation.......................................................................................283
18.2.2 AT+CTTSPARAM Set parameters of the TTS playing ..........................................284
19 Supported Unsolicited Result Codes .................................................285
19.1 Summary of CME ERROR Codes .................................................................285
19.2 Summary of CMS ERROR Codes .................................................................288
19.3 Summary of Unsolicited Result Codes ..........................................................292
20 AT Commands Examples ..................................................................297
20.1 Profile Commands ..........................................................................................297
20.2 SIM Commands..............................................................................................298
20.3 General Commands ........................................................................................299
20.4 Call Control Commands.................................................................................299
20.5 SIM Toolkit Commands .................................................................................301
20.6 Audio Commands ...........................................................................................301
20.7 SMS Commands.............................................................................................302
20.8 GPRS Commands...........................................................................................303
20.9 TCPIP Commands ..........................................................................................305
20.10 IP Commands ...............................................................................................305
20.11 PING Commands..........................................................................................305
20.12 HTTP and FTP Commands ..........................................................................306
20.13 GSM Location Commands ...........................................................................306
20.14 EMAIL Commands ......................................................................................307
20.15 MMS Commands .........................................................................................307
20.16 DDET Commands ........................................................................................308
20.17 RECORD Commands...................................................................................310
20.18 TTS Commands............................................................................................ 311
21 ATC Differences among SIM800 Series...........................................313
21.1 AT+CSDT.......................................................................................................313
21.2 AT+CSMINS ..................................................................................................313
21.3 AT+SGPIO......................................................................................................313
21.4 AT+CBAND ...................................................................................................314
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Version History
Version Date Chapter What is new
V1.00 New version
All Modify GSM 07.05 to 3GPP TS
27.005,modify GSM 07.07 to 3GPP TS
27.007
1.1 Scope of the document Add SIM800
2.2.8 ATH Delete ATH parameter [n]
2.2.12 +++ Change "0.5 second" to "1 second"
2.2.13 ATO Change "NO CARRIER" to "ERROR"
2.2.26 ATX Change default value from 0 to 4
2.2.32 AT&W Add AT+CFGRI,AT+CSGS
2.2.41.1 Auto-bauding Disable DTR auto-bauding
3.2.14 AT+CHLD Delete parameter of CHLD
3.2.18 AT+CLIP Change URC parameter
3.2.51 AT+CRSL Delete reference Note
3.2.7 AT+CEER Change description of 34 (emergency call
not possible)
4.2.10 AT+CRES Delete description of CSCB
4.2.11 AT+CSAS Delete description of CSCB
6.2.4 AT+CMIC Add reference Note
6.2.11 AT+CFGRI Add default value
6.2.16 AT+CCVM Modify Test Command response
information and parameter description
6.2.18 AT+CHF Add URC
6.2.26 AT+STTONE Change <duration> supported
range;delete reference note
6.2.27 AT+SIMTONE Modify last parameter of Test Command
to 10-500000
6.2.48 AT+SLEDS Modify default value
6.2.55 AT+CSGS Add ATC
6.2.56 AT+CMICBIAS Add ATC
8.2.2 AT+CIPSTART Modify parameter
8.2.15 AT+CIPHEAD Modify parameter
8.2.20 AT+CIPSRIP Modify parameter
8.2.23 AT+CIPCCFG Modify write cmd parameters
V1.01 2013-07-23
8.2.26 AT+CIPRXGET Add "single IP & multi IP connection"
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information
9.2.1 AT+SAPBR Modify parameter
12.2.23 AT+FTPLIST Change "Execution Command" to "Write
Command"
14.2.8 AT+SMTPBODY Change "Execution Command" to "Write
Command"
14.2.10 AT+SMTPSEND Modify parameter
14.2.11 AT+SMTPFT Change "Execution Command" to "Write
Command"
15.2.15 AT+CMMSRECV Change reference note
15.2.21
AT+CMMSTIMEOUT
Change "milliseconds" to "seconds"
15.2.25
AT+CMMSSCONT
Modify parameter of Execution
Command
17.2.1 AT+CREC Add note
18.2.2 AT+CTTSPARAM Modify parameter;add note
20.8 GPRS Commands Modify the CGQREQ example
20.17 RECORD
Commands
Add example
3.2.17 AT+CLCK Add Max Response Time
3.2.22 AT+COPS Add Max Response Time
3.2.29 AT+CPWD Add Max Response Time
3.2.28 AT+CPIN Add Max Response Time
3.2.41 AT+VTS Add Max Response Time
3.2.44 AT+CPOL Add Max Response Time
3.2.45 AT+COPN Add Max Response Time
3.2.54 AT+CPUC Add Max Response Time
6.2.7 AT+CADC Add Max Response Time
6.2.23 AT+CCID Add Max Response Time
7.2.1 AT+CGATT Add Max Response Time
7.2.5 AT+CGACT Add Max Response Time
3.2.24 AT+CPBF Modify description of max response
time
3.2.25 AT+CPBR Modify description of max response
time
4.2.1 CMGD Modify description of max response
time
4.2.3 CMGL Modify description of max response
time
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6.2.25 CMGDA Modify description of max response
time
15.2.8 AT+CMMSSEND Modify description of max response
time
15.2.15 AT+CMMSRECV Modify description of max response
time
2.2.16 ATS0 Add parameter saving mode
2.2.20 ATS6 Add parameter saving mode
2.2.21 ATS7 Add parameter saving mode
2.2.22 ATS8 Add parameter saving mode
2.2.26 ATX Add parameter saving mode
3.2.4 AT+CBST Add parameter saving mode
3.2.16 AT+CLCC Add parameter saving mode
3.2.12 AT+CSCS Add parameter saving mode
3.2.51 AT+CRSL Add parameter saving mode
3.2.52 AT+CLVL Add parameter saving mode
6.2.33 AT+CIURC Add parameter saving mode
6.2.53 AT_CSDT Add parameter saving mode
6.2.54 AT+CSMINS Add parameter saving mode
3.2.32 AT+CREG Modify parameter save mode
6.2.44 AT+SVR Modify parameter save mode
7.2.10 AT+CGREG Modify parameter save mode
3.2.24 AT+CPBS Delete parameter save mode
3.2.25 AT+CPBW Delete parameter save mode
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1 Introduction
1.1 Scope of the document
This document presents the AT Command Set for SIMCom SIM800 Series, including SIM800,
SIM800W, SIM800V, SIM800L and SIM800H.
1.2 Related documents
You can visit the SIMCom Website using the following link:
http://www.sim.com
1.3 Conventions and abbreviations
In this document, the GSM engines are referred to as following term:
ME (Mobile Equipment);
MS (Mobile Station);
TA (Terminal Adapter);
DCE (Data Communication Equipment) or facsimile DCE (FAX modem, FAX board);
In application, controlling device controls the GSM engine by sending AT Command via its
serial interface. The controlling device at the other end of the serial line is referred to as
following term:
TE (Terminal Equipment);
DTE (Data Terminal Equipment) or plainly "the application" which is running on an embedded
system;
1.4 AT Command syntax
The "AT" or "at" or “aT” or “At”prefix must be set at the beginning of each Command line. To
terminate a Command line enter <CR>.
Commands are usually followed by a response that includes.
"<CR><LF><response><CR><LF>"
Throughout this document, only the responses are presented, <CR><LF> are omitted
intentionally.
The AT Command set implemented by SIM800 Series is a combination of 3GPP TS 27.005,
3GPP TS 27.007 and ITU-T recommendation V.25ter and the AT commands developed by
SIMCom.
Note: A HEX string such as "00 49 49 49 49 FF FF FF FF" will be sent out through serial
port at the baud rate of 115200 immediately after SIM800 Series is powered on. The string
shall be ignored since it is used for synchronization with PC tool. Only enter AT Command
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through serial port after SIM800 Series is powered on and Unsolicited Result Code "RDY"
is received from serial port. If auto-bauding is enabled, the Unsolicited Result Codes
"RDY" and so on are not indicated when you start up the ME, and the "AT" prefix, or
"at" prefix must be set at the beginning of each command line.
All these AT commands can be split into three categories syntactically: "basic", "S parameter",
and "extended". These are as follows:
1.4.1 Basic syntax
These AT commands have the format of "AT<x><n>", or "AT&<x><n>", where "<x>"is the
Command, and "<n>"is/are the argument(s) for that Command. An example of this is "ATE<n>",
which tells the DCE whether received characters should be echoed back to the DTE according to
the value of "<n>". "<n>" is optional and a default will be used if missing.
1.4.2 S Parameter syntax
These AT commands have the format of "ATS<n>=<m>", where "<n>" is the index of the S
register to set, and "<m>"is the value to assign to it. "<m>" is optional; if it is missing, then a
default value is assigned.
1.4.3 Extended Syntax
These commands can operate in several modes, as in the following table:
Table 1: Types of AT commands and responses
Test Command AT+<x>=? The mobile equipment returns the list of parameters
and value ranges set with the corresponding Write
Command or by internal processes.
Read Command AT+<x>? This command returns the currently set value of the
parameter or parameters.
Write Command AT+<x>=<…> This command sets the user-definable parameter
values.
Execution Command AT+<x> The execution command reads non-variable
parameters affected by internal processes in the GSM
engine.
1.4.4 Combining AT commands on the same Command line
You can enter several AT commands on the same line. In this case, you do not need to type the
"AT" or "at" prefix before every command. Instead, you only need type "AT" or "at" the
beginning of the command line. Please note to use a semicolon as the command delimiter after
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an extended command; in basic syntax or S parameter syntax, the semicolon need not enter, for
example: ATE1Q0S0=1S3=13V1X4;+IFC=0,0;+IPR=115200;&W.
The Command line buffer can accept a maximum of 556 characters (counted from the first
command without “AT” or “at” prefix). If the characters entered exceeded this number then none
of the Command will executed and TA will return "ERROR".
1.4.5 Entering successive AT commands on separate lines
When you need to enter a series of AT commands on separate lines, please Note that you need to
wait the final response (for example OK, CME error, CMS error) of last AT Command you
entered before you enter the next AT Command.
1.5 Supported character sets
The SIM800 Series AT Command interface defaults to the IRA character set. The SIM800 Series
supports the following character sets:
GSM format
UCS2
HEX
IRA
PCCP
PCDN
8859-1
The character set can be set and interrogated using the "AT+CSCS" Command (3GPP TS
27.007). The character set is defined in GSM specification 3GPP TS 27.005.
The character set affects transmission and reception of SMS and SMS Cell Broadcast messages,
the entry and display of phone book entries text field and SIM Application Toolkit alpha strings.
1.6 Flow control
Flow control is very important for correct communication between the GSM engine and DTE.
For in the case such as a data or fax call, the sending device is transferring data faster than the
receiving side is ready to accept. When the receiving buffer reaches its capacity, the receiving
device should be capable to cause the sending device to pause until it catches up.
There are basically two approaches to achieve data flow control: software flow control and
hardware flow control. SIM800 Series support both two kinds of flow control.
In Multiplex mode, it is recommended to use the hardware flow control.
1.6.1 Software flow control (XON/XOFF flow control)
Software flow control sends different characters to stop (XOFF, decimal 19) and resume (XON,
decimal 17) data flow. It is quite useful in some applications that only use three wires on the
serial interface.
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The default flow control approach of SIM800 Series is hardware flow control (RTS/CTS flow
control), to enable software flow control in the DTE interface and within GSM engine, type the
following AT Command:
AT+IFC=1, 1
This setting is stored volatile, for use after restart, AT+IFC=1, 1 should be stored to the user
profile with AT&W.
NOTE:
The AT commands listed in the table of AT&W chapter should be stored to user profile with
AT&W for use after restart. Most other AT commands in V.25, 3GPP TS 27.005, 3GPP TS
27.007,GPRS will store parameters automatically and can be used after module restart.
Ensure that any communications software package (e.g. Hyper terminal) uses software flow
control.
NOTE:
Software Flow control should not be used for data calls where binary data will be transmitted or
received (e.g. TCP/IP) as the DTE interface may interpret binary data as flow control characters.
1.6.2 Hardware flow control (RTS/CTS flow control)
Hardware flow control achieves the data flow control by controlling the RTS/CTS line. When the
data transfer should be suspended, the CTS line is set inactive until the transfer from the
receiving buffer has completed. When the receiving buffer is ok to receive more data, CTS goes
active once again.
To achieve hardware flow control, ensure that the RTS/CTS lines are present on your application
platform.
1.7 Definitions
1.7.1 Parameter Saving Mode
For the purposes of the present document, the following syntactical definitions apply:
z NO_SAVE: The parameter of the current AT command will be lost if module is rebooted.
z AUTO_SAVE: The parameter of the current AT command will be kept in NVRAM
automatically, and it won't be lost if module is rebooted.
z AT&W_SAVE: The parameter of the current AT command will be kept in NVRAM by
sending the command of “AT&W.
If one AT command has not the item of “Parameter Saving Mode”, it means this AT command
doesn’t save the parameter or haven’t parameter.
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1.7.2 Max Response Time
Max response time is estimated maximum time to get response, the unit is seconds.
If one AT command has not the item of “Max Response Time”, it means this AT command
doesn’t care the response time.
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2 AT Commands According to V.25TER
These AT Commands are designed according to the ITU-T (International Telecommunication
Union, Telecommunication sector) V.25ter document.
2.1 Overview of AT Commands According to V.25TER
Command Description
A/ RE-ISSUES THE LAST COMMAND GIVEN
ATA ANSWER AN INCOMING CALL
ATD MOBILE ORIGINATED CALL TO DIAL A NUMBER
ATD><N> ORIGINATE CALL TO PHONE NUMBER IN CURRENT MEMORY
ATD><STR> ORIGINATE CALL TO PHONE NUMBER IN MEMORY WHICH
CORRESPONDS TO FIELD <STR>
ATDL REDIAL LAST TELEPHONE NUMBER USED
ATE SET COMMAND ECHO MODE
ATH DISCONNECT EXISTING CONNECTION
ATI DISPLAY PRODUCT IDENTIFICATION INFORMATION
ATL SET MONITOR SPEAKER LOUDNESS
ATM SET MONITOR SPEAKER MODE
+++ SWITCH FROM DATA MODE OR PPP ONLINE MODE TO
COMMAND MODE
ATO SWITCH FROM COMMAND MODE TO DATA MODE
ATP SELECT PULSE DIALLING
ATQ SET RESULT CODE PRESENTATION MODE
ATS0 SET NUMBER OF RINGS BEFORE AUTOMATICALLY
ANSWERING THE CALL
ATS3 SET COMMAND LINE TERMINATION CHARACTER
ATS4 SET RESPONSE FORMATTING CHARACTER
ATS5 SET COMMAND LINE EDITING CHARACTER
ATS6 PAUSE BEFORE BLIND DIALLING
ATS7 SET NUMBER OF SECONDS TO WAIT FOR CONNECTION
COMPLETION
ATS8 SET NUMBER OF SECONDS TO WAIT FOR COMMA DIAL
MODIFIER ENCOUNTERED IN DIAL STRING OF D COMMAND
ATS10 SET DISCONNECT DELAY AFTER INDICATING THE ABSENCE OF
DATA CARRIER
ATT SELECT TONE DIALING
ATV TA RESPONSE FORMAT
ATX SET CONNECT RESULT CODE FORMAT AND MONITOR CALL
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PROGRESS
ATZ RESET DEFAULT CONFIGURATION
AT&C SET DCD FUNCTION MODE
AT&D SET DTR FUNCTION MODE
AT&F FACTORY DEFINED CONFIGURATION
AT&V DISPLAY CURRENT CONFIGURATION
AT&W STORE ACTIVE PROFILE
AT+GCAP REQUEST COMPLETE TA CAPABILITIES LIST
AT+GMI REQUEST MANUFACTURER IDENTIFICATION
AT+GMM REQUEST TA MODEL IDENTIFICATION
AT+GMR REQUEST TA REVISION IDENTIFICATION OF SOFTWARE
RELEASE
AT+GOI REQUEST GLOBAL OBJECT IDENTIFICATION
AT+GSN REQUEST TA SERIAL NUMBER IDENTIFICATION (IMEI)
AT+ICF SET TE-TA CONTROL CHARACTER FRAMING
AT+IFC SET TE-TA LOCAL DATA FLOW CONTROL
AT+IPR SET TE-TA FIXED LOCAL RATE
AT+HVOIC DISCONNECT VOICE CALL ONLY
2.2 Detailed Description of AT Commands According to V.25TER
2.2.1 A/ Re-issues the Last Command Given
A/ Re-issues the Last Command Given
Execution
Command
A/
Response
Re-issues the previous Command
Reference
V.25ter
Note
2.2.2 ATA Answer an Incoming Call
ATA Answer an Incoming Call
Execution
Command
ATA
Response
TA sends off-hook to the remote station.
Note1: Any additional commands on the same Command line are ignored.
Note2: This Command may be aborted generally by receiving a character
during execution. The aborting is not possible during some states of
connection establishment such as handshaking.
Response in case of data call, if successfully connected
CONNECT<text> TA switches to data mode.
Note: <text> output only if ATX<value> parameter setting with the
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<value>>0
When TA returns to Command mode after call release
OK
Response in case of voice call, if successfully connected
OK
Response if no connection
NO CARRIER
Max Response
Time
20s(voice call)
Timeout set with ATS7 (data call)
Reference
V.25ter
Note
See also ATX
2.2.3 ATD Mobile Originated Call to Dial A Number
ATD Mobile Originated Call to Dial A Number
Execution
Command
ATD<n>[<mgsm
][;]
Response
This Command can be used to set up outgoing voice, data or fax calls. It
also serves to control supplementary services.
Note: This Command may be aborted generally by receiving an ATH
Command or a character during execution. The aborting is not possible
during some states of connection establishment such as handshaking.
If error is related to ME functionality
+CME ERROR: <err>
If no dial tone and (parameter setting ATX2 or ATX4)
NO DIALTONE
If busy and (parameter setting ATX3 or ATX4)
BUSY
If a connection cannot be established
NO CARRIER
If the remote station does not answer
NO ANSWER
If connection successful and non-voice call.
CONNECT<text> TA switches to data mode.
Note: <text> output only if ATX<value> parameter setting with the
<value> >0
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When TA returns to Command mode after call release
OK
If connection successful and voice call
OK
Parameters
<n> String of dialing digits and optionally V.25ter modifiers dialing
digits:
0-9, * , #, +, A, B, C
Following V.25ter modifiers are ignored:
,(comma), T, P, !, W, @
Emergency call:
<n> Standardized emergency number 112 (no SIM needed)
<mgsm> String of GSM modifiers:
I Actives CLIR (Disables presentation of own number to
called party)
i Deactivates CLIR (Enable presentation of own number
to called party)
G Activates Closed User Group invocation for this call
only
g Deactivates Closed User Group invocation for this call
only
<;> Only required to set up voice call , return to Command state
Max Response
Time
20s(voice call)
Timeout set with ATS7 (data call)
Reference
V.25ter
Note
Parameter "I" and "i" only if no *# code is within the dial string
<n> is default for last number that can be dialed by ATDL
*# codes sent with ATD are treated as voice calls. Therefore, the Command
must be terminated with a semicolon ";"
See ATX Command for setting result code and call monitoring parameters.
Responses returned after dialing with ATD
For voice call two different responses mode can be determined. TA returns
"OK" immediately either after dialing was completed or after the call is
established. The setting is controlled by AT+COLP. Factory default is
AT+COLP=0, this cause the TA returns "OK" immediately after dialing
was completed, otherwise TA will returns "OK", "BUSY", "NO DIAL
TONE", "NO CARRIER".
Using ATD during an active voice call:
When a user originates a second voice call while there is already an active
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voice call, the first call will be automatically put on hold.
The current states of all calls can be easily checked at any time by using the
AT+CLCC Command.
2.2.4 ATD><n> Originate Call to Phone Number in Current Memory
ATD><n> Originate Call to Phone Number in Current Memory
Response
This Command can be used to dial a phone number from current phonebook
memory.
Note: This Command may be aborted generally by receiving an ATH
Command or a character during execution. The aborting is not possible
during some states of connection establishment such as handshaking.
If error is related to ME functionality
+CME ERROR: <err>
If no dial tone and (parameter setting ATX2 or ATX4)
NO DIALTONE
If busy and (parameter setting ATX3 or ATX4)
BUSY
If a connection cannot be established
NO CARRIER
If the remote station does not answer
NO ANSWER
If connection successful and non-voice call.
CONNECT<text> TA switches to data mode.
Note: <text> output only if ATX<value> parameter setting with the
<value> >0
When TA returns to Command mode after call release
OK
If successfully connected and voice call
OK
Execution
Command
ATD><n>[<clir>
][ <cug>][;]
Parameters
<n> Integer type memory location should be in the range of locations
available in the memory used
<mgsm> String of GSM modifiers:
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<clir>
I Override the CLIR supplementary service subscription
default value for this call
Invocation (restrict CLI presentation)
i Override the CLIR supplementary service subscription
default value for this call
Suppression (allow CLI presentation)
<cug>
G Control the CUG supplementary service information
for this call
CUG Not supported
g Control the CUG supplementary service information
for this call
CUG Not supported
<;> Only required to set up voice call , return to
Command state
Reference
V.25ter
Note
Parameter "I" and "i" only if no *# code is within the dial string
*# codes sent with ATD are treated as voice calls. Therefore, the Command
must be terminated with a semicolon ";"
See ATX Command for setting result code and call monitoring parameters.
2.2.5 ATD><str> Originate Call to Phone Number in Memory Which Corresponds to
Field <str>
ATD><str> Originate Call to Phone Number in Memory Which Corresponds to Field
<str>
Execution
Command
ATD><str>[<clir
>][<cug>][;]
Response
This Command make the TA attempts to set up an outgoing call to stored
number.
All available memories are searched for the entry <str>.
Note: This Command may be aborted generally by receiving an ATH
Command or a character during execution. The aborting is not possible
during some states of connection establishment such as handshaking.
If error is related to ME functionality
+CME ERROR: <err>
If no dial tone and (parameter setting ATX2 or ATX4)
NO DIALTONE
If busy and (parameter setting ATX3 or ATX4)
BUSY
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If a connection cannot be established
NO CARRIER
If the remote station does not answer
NO ANSWER
If connection successful and non-voice call.
CONNECT<text> TA switches to data mode.
Note: <text> output only if ATX<value> parameter setting with the
<value> >0
When TA returns to Command mode after call release
OK
If successfully connected and voice call
OK
Parameters
<str> String type (string should be included in quotation marks) value
("x"), which should equal to an alphanumeric field in at least one phone
book entry in the searched memories. str formatted as current TE character
set specified by +CSCS.
<mgsm> String of GSM modifiers:
I Actives CLIR (Disables presentation of own number to
called party)
i Deactivates CLIR (Enable presentation of own number
to called party)
G Activates Closed User Group invocation for this call
only
g Deactivates Closed User Group invocation for this call
only
<;> Only required to set up voice call, return to Command state
Reference
V.25ter
Note
Parameter "I" and "i" only if no "*#" code is within the dial string
*# codes sent with ATD are treated as voice calls. Therefore, the Command
must be terminated with a semicolon ";"
See ATX Command for setting result code and call monitoring parameters.
2.2.6 ATDL Redial Last Telephone Number Used
ATDL Redial Last Telephone Number Used
Execution
Command
ATDL
Response
This Command redials the last voice and data call number used.
Note: This Command may be aborted generally by receiving an ATH
Command or a character during execution. The aborting is not possible
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during some states of connection establishment such as handshaking.
If error is related to ME functionality
+CME ERROR: <err>
If no dial tone and (parameter setting ATX2 or ATX4)
NO DIALTONE
If busy and (parameter setting ATX3 or ATX4)
BUSY
If a connection cannot be established
NO CARRIER
If the remote station does not answer
NO ANSWER
If connection successful and non-voice call.
CONNECT<text> TA switches to data mode.
Note: <text> output only if ATX<value> parameter setting with the
<value> >0
When TA returns to Command mode after call release
OK
If successfully connected and voice call
OK
Reference
V.25ter
Note
See ATX Command for setting result code and call monitoring parameters.
Return the numbers and symbols which ATD supports if there is no last
dialing context.
2.2.7 ATE Set Command Echo Mode
ATE Set Command Echo Mode
Response
This setting determines whether or not the TA echoes characters received
from TE during Command state.
OK
Execution
Command
ATE<value>
Parameter
<value> 0 Echo mode off
1 Echo mode on
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Reference
V.25ter
Note
2.2.8 ATH Disconnect Existing Connection
ATH Disconnect Existing Connection
Execution
Command
ATH
Response
Disconnect existing call by local TE from Command line and terminate call
OK
Note: OK is issued after circuit 109(DCD) is turned off, if it was previously
on.
Max Response
Time
20s
Reference
V.25ter
Note
2.2.9 ATI Display Product Identification Information
ATI Display Product Identification Information
Execution
Command
ATI
Response
TA issues product information text
Example:
SIM800 R11.08
OK
Reference
V.25ter
Note
2.2.10 ATL Set Monitor speaker loudness
ATL Set Monitor speaker loudness
Response
OK
Execution
Command
ATL<value> Parameter
<value> 0..9 Volume
Reference
V.25ter
Note
No effect in GSM
2.2.11 ATM Set Monitor Speaker Mode
ATM Set Monitor Speaker Mode
Execution
Command
Response
OK
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ATM<value> Parameter
<value> 0..9 Mode
Reference
V.25ter
Note
No effect in GSM
2.2.12 +++ Switch from Data Mode or PPP Online Mode to Command Mode
+++ Switch from Data Mode or PPP Online Mode to Command Mode
Execution
Command
+++
Response
The +++ character sequence causes the TA to cancel the data flow over the
AT interface and switch to Command mode. This allows you to enter AT
Command while maintaining the data connection to the remote server.
OK
To prevent the +++ escape sequence from being misinterpreted as data, it
should comply to following sequence:
No characters entered for T1 time (1 second)
"+++" characters entered with no characters in between (1 second)
No characters entered for T1 timer (1 second)
Switch to Command mode, otherwise go to step 1.
Reference
V.25ter
Note
To return from Command mode back to data mode: Enter ATO.
2.2.13 ATO Switch from Command Mode to Data Mode
ATO Switch from Command Mode to Data Mode
Response
TA resumes the connection and switches back from Command mode to data
mode.
CONNECT
If connection is not successfully resumed
ERROR
else
TA returns to data mode from command mode CONNECT <text>
Note: <text> only if parameter setting ATX>0
Execution
Command
ATO[n]
Parameter
<n> 0 Switch from command mode to data mode.
Reference
V.25ter
Note
2.2.14 ATP Select Pulse Dialling
ATP Select Pulse Dialling
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Execution
Command
ATP
Response
OK
Reference
V.25ter
Note
No effect in GSM
2.2.15 ATQ Set Result Code Presentation Mode
ATQ Set Result Code Presentation Mode
Response
This parameter setting determines whether or not the TA transmits any result
code to the TE. Information text transmitted in response is not affected by
this setting.
If <n>=0:
OK
If <n>=1:
(none)
Execution
Command
ATQ<n>
Parameter
<n> 0 TA transmits result code
1 Result codes are suppressed and not transmitted
Reference
V.25ter
Note
2.2.16 ATS0 Set Number of Rings before Automatically Answering the Call
ATS0 Set Number of Rings before Automatically Answering the Call
Response
<n>
OK
Read Command
ATS0?
Parameter
See Write Command
Response
This parameter setting determines the number of rings before auto-answer.
OK
ERROR
Write Command
ATS0=<n>
Parameter
<n> 0 Automatic answering is disable.
1-255 Number of rings the modem will wait for before answering
the phone if a ring is detected.
Parameter Saving
Mode
AT&W_SAVE
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Reference
V.25ter
Note
If <n> is set too high, the calling party may hang up before the call can be
answered automatically.
2.2.17 ATS3 Set Command Line Termination Character
ATS3 Set Command Line Termination Character
Response
<n>
OK
Read Command
ATS3?
Parameter
See Write Command
Response
This parameter setting determines the character recognized by TA to
terminate an incoming Command line. The TA also returns this character in
output.
OK
ERROR
Write Command
ATS3=<n>
Parameter
<n> 13 Command line termination character
Reference
V.25ter
Note
Default 13 = CR. It only supports default value.
2.2.18 ATS4 Set Response Formatting Character
ATS4 Set Response Formatting Character
Response
<n>
OK
Read Command
ATS4?
Parameter
See Write Command
Response
This parameter setting determines the character generated by the TA for
result code and information text.
OK
ERROR
Write Command
ATS4=<n>
Parameter
<n> 10 Response formatting character
Reference Note
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V.25ter Default 10 = LF. It only supports default value.
2.2.19 ATS5 Set Command Line Editing Character
ATS5 Set Command Line Editing Character
Response
<n>
OK
Read Command
ATS5?
Parameter
See Write Command
Response
This parameter setting determines the character recognized by TA as a
request to delete from the Command line the immediately preceding
character.
OK
ERROR
Write Command
ATS5=<n>
Parameter
<n> 0-8-127 Response formatting character
Reference
V.25ter
Note
Default 8 = Backspace.
2.2.20 ATS6 Pause Before Blind Dialling
ATS6 Pause Before Blind Dialling
Read Command
ATS6?
Response
<n>
OK
Response
OK
ERROR
Write Command
ATS6=<n>
Parameter
<n> 0..999 Time
Parameter Saving
Mode
AT&W_SAVE
Reference
V.25ter
Note
No effect in GSM
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2.2.21 ATS7 Set Number of Seconds to Wait for Connection Completion
ATS7 Set Number of Seconds to Wait for Connection Completion
Response
<n>
OK
Read Command
ATS7?
Parameter
See Write Command
Response
This parameter setting determines the amount of time to wait for the
connection completion in case of answering or originating a call.
OK
ERROR
Write Command
ATS7=<n>
Parameter
<n> 1-60-255 Number of seconds to wait for connection completion
Parameter Saving
Mode
AT&W_SAVE
Reference
V.25ter
Note
If called party has specified a high value for ATS0=<n>, call setup may fail.
The correlation between ATS7 and ATS0 is important
Example: Call may fail if ATS7=30 and ATS0=20.
ATS7 is only applicable to data call.
2.2.22 ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in
Dial String of D Command
ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in Dial
String of D Command
Response
<n>
OK
Read Command
ATS8?
Parameter
See Write Command
Response
OK
ERROR
Write Command
ATS8=<n>
Parameter
<n> 0-255 The value of this register determines how long the modem
should pause when it sees a comma in the dialing string.
Parameter Saving AT&W_SAVE
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Mode
Reference
V.25ter
Note
No effect in GSM
2.2.23 ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier
ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier
Response
<n>
OK
Read Command
ATS10?
Parameter
See Write Command
Response
This parameter setting determines the amount of time that the TA will
remain connected in absence of data carrier. If the data carrier is once more
detected before disconnecting, the TA remains connected.
OK
ERROR
Write Command
ATS10=<n>
Parameter
<n> 1-15-254 Number of tenths seconds of delay
Reference
V.25ter
Note
2.2.24 ATT Select Tone Dialing
ATT Select Tone Dialing
Execution
Command
ATT
Response
OK
Reference
V.25ter
Note
No effect in GSM
2.2.25 ATV TA Response Format
ATV TA Response Format
Execution
Command
ATV<value>
Response
This parameter setting determines the contents of the header and trailer
transmitted with result codes and information responses.
When <value>=0
0
When <value>=1
OK
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Parameter
<value> 0 Information response: <text><CR><LF>
Short result code format: <numeric code><CR>
1 Information response: <CR><LF><text><CR><LF>
Long result code format: <CR><LF><verbose code>
<CR><LF>
The result codes, their numeric equivalents and brief descriptions of the use
of each are listed in the following table.
Reference
V.25ter
Note
ATV1 ATV0 Description
OK 0 Acknowledges execution of a Command
CONNECT 1 A connection has been established; the DCE is moving from
Command state to online data state
RING 2 The DCE has detected an incoming call signal from
network
NO CARRIER 3 The connection has been terminated or the attempt to
establish a connection failed
ERROR 4 Command not recognized, Command line maximum length
exceeded, parameter value invalid, or other problem with
processing the Command line
NO DIALTONE 6 No dial tone detected
BUSY 7 Engaged (busy) signal detected
NO ANSWER 8 "@" (Wait for Quiet Answer) dial modifier was used, but
remote ringing followed by five seconds of silence was not
detected before expiration of the connection timer (S7)
PROCEEDING 9 An AT command is being processed
CONNECT
<text>
Manufacturer-
specific
Same as CONNECT, but includes manufacturer-specific
text that may specify DTE speed, line speed, error control,
data compression, or other status
2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress
ATX Set CONNECT Result Code Format and Monitor Call Progress
Execution
Command
ATX<value>
Response
This parameter setting determines whether or not the TA detected the
presence of dial tone and busy signal and whether or not TA transmits
particular result codes.
OK
ERROR
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Parameter
<value> 0 CONNECT result code only returned, dial tone and busy
detection are both disabled.
1 CONNECT<text> result code only returned, dial tone and
busy detection are both disabled.
2 CONNECT<text> result code returned, dial tone
detection is enabled, busy detection is disabled.
3 CONNECT<text> result code returned, dial tone
detection is disabled, busy detection is enabled.
4 CONNECT<text> result code returned, dial tone and
busy detection are both enabled.
Parameter Saving
Mode
AT&W_SAVE
Reference
V.25ter
Note
2.2.27 ATZ Reset Default Configuration
ATZ Reset Default Configuration
Response
TA sets all current parameters to the user defined profile.
OK
ERROR
Execution
Command
ATZ[<value>]
Parameter
<value> 0 Restore profile 0
Reference
V.25ter
Note
Parameter impacted by Z command: refer to AT&W
2.2.28 AT&C Set DCD Function Mode
AT&C Set DCD Function Mode
Response
This parameter determines how the state of circuit 109 (DCD) relates to the
detection of received line signal from the distant end.
OK
ERROR
Execution
Command
AT&C[<value>]
Parameter
<value> 0 DCD line is always ON
1 DCD line is ON only in the presence of data carrier
Parameter Saving AT&W_SAVE
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Mode
Reference
V.25ter
Note
2.2.29 AT&D Set DTR Function Mode
AT&D Set DTR Function Mode
Response
This parameter determines how the TA responds when circuit 108/2 (DTR)
is changed from the ON to the OFF condition during data mode.
OK
ERROR
Execution
Command
AT&D[<value>]
Parameter
<value> 0 TA ignores status on DTR.
1 ON->OFF on DTR: Change to Command mode with
remaining the connected call.
2 ON->OFF on DTR: Disconnect call, change to Command
mode. During state DTR = OFF is auto-answer off.
Parameter Saving
Mode
AT&W_SAVE
Reference
V.25ter
Note
2.2.30 AT&F Factory Defined Configuration
AT&F Factory Defined Configuration
Response
TA sets all current parameters to the manufacturer defined profile.
OK
Execution
Command
AT&F[<value>]
Parameter
<value> 0 Set all TA parameters to manufacturer defaults.
Reference
V.25ter
Note
Parameter impacted by &F command: refer to AT&W
2.2.31 AT&V Display Current Configuration
AT&V Display Current Configuration
Execution
Command
AT&V[<n>]
Response
TA returns the current parameter setting.
<current configurations text>
OK
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ERROR
Parameter
<n> 0 Responses in numeric format
Reference
V.25ter
Note
2.2.32 AT&W Store Active Profile
AT&W Store Active Profile
Response
TA stores the current parameter setting in the user defined profile.
OK
ERROR
Execution
Command
AT&W[<n>]
Parameter
<n> 0 Store the current configuration in profile 0
Reference
V.25ter
Note
The user defined profile is stored in non volatile memory.
Parameter stored by &W
Command Parameter name Displayedby &V
ATS0 <num> Y
ATS3 <char> Y
ATS4 <char> Y
ATS5 <char> Y
ATS6 <short> Y
ATS7 <time> Y
ATS8 <time> Y
ATS10 <time> Y
AT+CBST <speed>,<name>,<ce> Y
AT+CRLP <iws>,<mws>,<T1>,<N2> Y
ATV <format> Y
ATE <echo> Y
ATQ <result> Y
ATX <result> Y
AT&C <behavior> Y
AT&D <behavior> Y
AT+CLTS <timestamp> Y
AT+CREG <n> Y
AT+CGREG <n> Y
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AT+CMEE <n> Y
AT+CSCLK <n> Y
AT+CIURC <mode> Y
AT+CFGRI <mode> Y
AT+CMTE <mode> Y
AT+STKPCIS <switch> Y
AT+CMGF <mode> Y
AT+CNMI <mode>,<mt>,<bm>,<ds>,<bfr> Y
AT+CSCS <chest> Y
AT+VTD <n> Y
AT+CALS <n> Y
AT+CEXTHS <mode> Y
AT+CEXTBUT <mode> Y
AT+CHF <ind> Y
AT+CAAS <mode> Y
AT+CBUZZERRING <mode> Y
AT+DDET <n> Y
AT+MORING <mode> Y
AT+SVR <voice_rate_coding> Y
AT+CCPD <mode> Y
AT+CSGS <mode> Y
AT+CNETLIGHT <mode> Y
AT+SLEDS <mode>,<timer_on>,<timer_off> Y
AT+CSDT <mode> Y
AT+CSMINS <n> Y
AT+EXUNSOL <exunsol> Y
AT+IPR <n> Y
AT+IFC <TA_by_TE>, <TE_by_TA> Y
AT+ICF <format>,<parity> Y
AT+FCLASS <mode> Y
NOTE:
AT+CSMINS and AT+CSDT is available when simcard supports hot plug function.
2.2.33 AT+GCAP Request Complete TA Capabilities List
AT+GCAP Request Complete TA Capabilities List
Execution
Command
AT+GCAP
Response
TA reports a list of additional capabilities.
+GCAP: list of supported <name>s
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OK
Parameter
<name> +CGSM GSM function is supported
+FCLASS FAX function is supported
Reference
V.25ter
Note
2.2.34 AT+GMI Request Manufacturer Identification
AT+GMI Request Manufacturer Identification
Response
OK
Test Command
AT+GMI=?
Parameter
Execution
Command
AT+GMI
TA reports one or more lines of information text which permit the user to
identify the manufacturer.
SIMCOM_Ltd
OK
Reference
V.25ter
Note
2.2.35 AT+GMM Request TA Model Identification
AT+GMM Request TA Model Identification
Test Command
AT+GMM=?
Response
OK
TA reports one or more lines of information text which permit the user to
identify the specific model of device.
<model>
OK
Execution
Command
AT+GMM
Parameter
<model> Product model identification text
Reference
V.25ter
Note
2.2.36 AT+GMR Request TA Revision Identification of Software Release
AT+GMR Request TA Revision Identification of Software Release
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Test Command
AT+GMR=?
Response
OK
TA reports one or more lines of information text which permit the user to
identify the revision of software release.
Revision: <revision>
OK
Execution
Command
AT+GMR
Parameter
<revision> Revision of software release
Reference
V.25ter
Note
2.2.37 AT+GOI Request Global Object Identification
AT+GOI Request Global Object Identification
Test Command
AT+GOI=?
Response
OK
Response
TA reports one or more lines of information text which permit the user to
identify the device, based on the ISO system for registering unique object
identifiers.
<Object Id>
OK
Execution
Command
AT+GOI
Parameter
<Object Id> Identifier of device type
see X.208, 209 for the format of <Object Id>
Reference
V.25ter
Note
2.2.38 AT+GSN Request TA Serial Number Identification (IMEI)
AT+GSN Request TA Serial Number Identification(IMEI)
Test Command
AT+GSN=?
Response
OK
Execution
Command
AT+GSN
Response
TA reports the IMEI (international mobile equipment identifier) number in
information text which permit the user to identify the individual ME device.
<sn>
OK
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Parameter
<sn> IMEI of the telephone(International Mobile station Equipment
Identity)
Reference
V.25ter
Note
The serial number (IMEI) is varied by individual ME device.
2.2.39 AT+ICF Set TE-TA Control Character Framing
AT+ICF Set TE-TA Control Character Framing
Response
+ICF: (list of supported <format>s),(list of supported <parity>s)
OK
Test Command
AT+ICF=?
Parameters
See Write Command
Response
+ICF: <format>,<parity>
OK
Read Command
AT+ICF?
Parameters
See Write Command
Response
This parameter setting determines the serial interface character framing
format and parity received by TA from TE.
OK
Write Command
AT+ICF=<forma
t>[,<parity>]
Parameters
<format> 1 8 data 0 parity 2 stop
2 8 data 1 parity 1 stop
3 8 data 0 parity 1 stop
4 7 data 0 parity 2 stop
5 7 data 1 parity 1 stop
6 7 data 0 parity 1 stop
<parity> 0 odd
1 even
3 space (0)
Reference
V.25ter
Note
The Command is applied for Command state;
In <format> parameter, "0 parity" means no parity;
The <parity> field is ignored if the <format> field specifies no parity and
string "+ICF: <format>,255" will be response to AT+ICF? Command.
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2.2.40 AT+IFC Set TE-TA Local Data Flow Control
AT+IFC Set TE-TA Local Data Flow Control
Response
+IFC: (list of supported <dce_by_dte>s),(list of supported
<dte_by_dce>s)
OK
Test Command
AT+IFC=?
Parameters
See Write Command
Response
+IFC: <dce_by_dte>,<dte_by_dce>
OK
Read Command
AT+IFC?
Parameters
See Write Command
Response
This parameter setting determines the data flow control on the serial
interface for data mode.
OK
Write Command
AT+IFC=<dce_b
y_dte>[,<dte_by
_dce>]
Parameters
<dce_by_dte> Specifies the method will be used by TE at receive of
data from TA
0 No flow control
1 Software flow control
2 Hardware flow control
<dte_by_dce> Specifies the method will be used by TA at receive of data
from TE
0 No flow control
1 Software flow control
2 Hardware flow control
Reference
V.25ter
Note
2.2.41 AT+IPR Set TE-TA Fixed Local Rate
AT+IPR Set TE-TA Fixed Local Rate
Response
+IPR: (list of supported auto detectable <rate>s),(list of supported
fixed-only <rate>s)
OK
Test Command
AT+IPR=?
Parameter
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See Write Command
Response
+IPR: <rate>
OK
Read Command
AT+IPR?
Parameter
See Write Command
Response
This parameter setting determines the data rate of the TA on the serial
interface. The rate of Command takes effect following the issuance of any
result code associated with the current Command line.
OK
Write Command
AT+IPR=<rate>
Parameter
<rate> Baud rate per second
0 (Auto-bauding)
1200
2400
4800
9600
19200
38400
57600
115200
Reference
V.25ter
Note
Factory setting is AT+IPR=0auto-bauding.
2.2.41.1 Auto-bauding
Synchronization between DTE and DCE ensure that DTE and DCE are correctly synchronized and
the baud rate used by the DTE is detected by the DCE (= ME). To allow the baud rate to be
synchronized, simply issue an "AT" string. This is necessary when you start up the module while
auto-bauding is enabled. It is recommended to wait 3 to 5 seconds before sending the first AT
character. Otherwise undefined characters might be returned.
If you want to use auto-bauding and auto-answer at the same time, you can easily enable the
DTE-DCE synchronization, when you activate auto-bauding first and then configure the
auto-answer mode.
Restrictions on auto-bauding operation
The serial interface has to be operated at 8 data bits, no parity and 1 stop bit (factory setting).
Only the strings "AT" or "At" or "aT" or "at" can be detected when auto-bauding is enabled.
AT+IPR=0 setting to auto-bauding will take effect after module resets.
Unsolicited Result Codes that may be issued before the ME detects the new baud rate (by
receiving the first AT Command string) will be sent at the previously detected baud rate.The
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Unsolicited Result Codes "RDY" and so on are not indicated when you start up the ME while
auto-bauding is enabled.
It is not recommended to switch to auto-bauding from a baud rate that cannot be detected by the
auto-bauding mechanism (e.g. 300 baud). Responses to +IPR=0 and any commands on the same
line might be corrupted.
Auto-bauding and baud rate after restart
The most recently detected baud rate can not be stored when module is powered down.
2.2.42 AT+HVOIC Disconnect Voice Call Only
AT+HVOIC Disconnect Voice Call Only
Execution
Command
AT+HVOIC
Response
Disconnect existing voice call by local TE from Command line and
terminate call with existing PPP or CSD connection on.
OK
Reference
V.25ter
Note
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SIM800 Series_AT Command Manual_V1.01 47 2013-07-23
3 AT Commands According to 3GPP TS 27.007
3.1 Overview of AT Command According to 3GPP TS 27.007
Command Description
AT+CACM ACCUMULATED CALL METER(ACM) RESET OR QUERY
AT+CAMM ACCUMULATED CALL METER MAXIMUM(ACM MAX) SET OR
QUERY
AT+CAOC ADVICE OF CHARGE
AT+CBST SELECT BEARER SERVICE TYPE
AT+CCFC CALL FORWARDING NUMBER AND CONDITIONS CONTROL
AT+CCWA CALL WAITING CONTROL
AT+CEER EXTENDED ERROR REPORT
AT+CGMI REQUEST MANUFACTURER IDENTIFICATION
AT+CGMM REQUEST MODEL IDENTIFICATION
AT+CGMR REQUEST TA REVISION IDENTIFICATION OF SOFTWARE
RELEASE
AT+CGSN REQUEST PRODUCT SERIAL NUMBER IDENTIFICATION
(IDENTICAL WITH +GSN)
AT+CSCS SELECT TE CHARACTER SET
AT+CSTA SELECT TYPE OF ADDRESS
AT+CHLD CALL HOLD AND MULTIPARTY
AT+CIMI REQUEST INTERNATIONAL MOBILE SUBSCRIBER IDENTITY
AT+CLCC LIST CURRENT CALLS OF ME
AT+CLCK FACILITY LOCK
AT+CLIP CALLING LINE IDENTIFICATION PRESENTATION
AT+CLIR CALLING LINE IDENTIFICATION RESTRICTION
AT+CMEE REPORT MOBILE EQUIPMENT ERROR
AT+COLP CONNECTED LINE IDENTIFICATION PRESENTATION
AT+COPS OPERATOR SELECTION
AT+CPA S PHONE ACTIVITY STATUS
AT+CPBF FIND PHONEBOOK ENTRIES
AT+CPBR READ CURRENT PHONEBOOK ENTRIES
AT+CPBS SELECT PHONEBOOK MEMORY STORAGE
AT+CPBW WRITE PHONEBOOK ENTRY
AT+CPIN ENTER PIN
AT+CPWD CHANGE PASSWORD
AT+CR SERVICE REPORTING CONTROL
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AT+CRC SET CELLULAR RESULT CODES FOR INCOMING CALL
INDICATION
AT+CREG NETWORK REGISTRATION
AT+CRLP SELECT RADIO LINK PROTOCOL PARAMETERS
AT+CRSM RESTRICTED SIM ACCESS
AT+CSQ SIGNAL QUALITY REPORT
AT+FCLAS S FAX: SELECT, READ OR TEST SERVICE CLASS
AT+FMI FAX: REPORT MANUFACTURED ID
AT+FMM FAX: REPORT MODEL ID
AT+FMR FAX: REPORT REVISION ID
AT+VTD TONE DURATION
AT+VTS DTMF AND TONE GENERATION
AT+CMUX MULTIPLEXER CONTROL
AT+CNUM SUBSCRIBER NUMBER
AT+CPOL PREFERRED OPERATOR LIST
AT+COPN READ OPERATOR NAMES
AT+CFUN SET PHONE FUNCTIONALITY
AT+CCLK CLOCK
AT+CSIM GENERIC SIM ACCESS
AT+CALM ALERT SOUND MODE
AT+CALS ALERT SOUND SELECT
AT+CRSL RINGER SOUND LEVEL
AT+CLV L LOUD SPEAKER VOLUME LEVEL
AT+CMUT MUTE CONTROL
AT+CPUC PRICE PER UNIT AND CURRENCY TABLE
AT+CCWE CALL METER MAXIMUM EVENT
AT+CBC BATTERY CHARGE
AT+CUSD UNSTRUCTURED SUPPLEMENTARY SERVICE DATA
AT+CSSN SUPPLEMENTARY SERVICES NOTIFICATION
3.2 Detailed Descriptions of AT Command According to 3GPP TS 27.007
3.2.1 AT+CACM Accumulated Call Meter (ACM) Reset or Query
AT+CACM Accumulated Call Meter(ACM) Reset or Query
Test Command
AT+CACM=?
Response
OK
Read Command
AT+CACM?
Response
TA returns the current value of ACM.
+CACM: <acm>
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OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<acm> String type (string should be included in quotation marks);
three bytes of the current ACM value in hexa-decimal format (e.g.
"00001E" indicates decimal value 30)
000000 – FFFFFF
Response
TA resets the Advice of Charge related accumulated call meter (ACM)
value in SIM file EF (ACM). ACM contains the total number of home
units for both the current and preceding calls.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CACM=<pa
sswd>
Parameter
<passwd> String type (string should be included in quotation marks):
SIM PIN2
Reference
3GPP TS 27.007
[13]
Note
3.2.2 AT+CAMM Accumulated Call Meter Maximum (ACM max) Set or Query
AT+CAMM Accumulated Call Meter Maximum(ACM max) Set or Query
Test Command
AT+CAMM=?
Response
OK
Response
TA returns the current value of ACM max.
+CAMM: <acmmax>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CAMM?
Parameters
See Write Command
Write Command
AT+CAMM=<ac
mmax>[,<passwd
>]
Response
TA sets the Advice of Charge related accumulated call meter maximum
value in SIM file EF (ACM max). ACM max contains the maximum
number of home units allowed to be consumed by the subscriber.
OK
ERROR
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If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<acmmax> String type (string should be included in quotation
marks); three bytes of the max. ACM value in hex-decimal format (e.g.
"00001E" indicates decimal value 30)
000000 disable ACMmax feature
000001-FFFFFF
<passwd> String type (string should be included in quotation marks)
SIM PIN2
Reference
3GPP TS 27.007
[13]
Note
3.2.3 AT+CAOC Advice of Charge
AT+CAOC Advice of Charge
Response
+CAOC: (list of supported <mode>s)
OK
Test Command
AT+CAOC=?
Parameters
See Write Command
Response
+CAOC: <mode>
OK
Read Command
AT+CAOC?
Parameters
See Write Command
Response
TA sets the Advice of Charge supplementary service function mode.
If <mode>=0, TA returns the current call meter value
+CAOC: <ccm>
OK
If <mode>=1, TA deactivates the unsolicited reporting of CCM value
OK
If <mode>=2, TA activates the unsolicited reporting of CCM value
OK
ERROR
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CAOC=<mo
de>
Parameters
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<mode> 0 Query CCM value
1 Deactivate the unsolicited reporting of CCM value
2 Activate the unsolicited reporting of CCM value
<ccm> String type (string should be included in quotation marks);
three bytes of the current CCM value in hex-decimal format (e.g.
"00001E" indicates decimal value 30); bytes are similarly coded as
ACMmax value in the SIM 000000-FFFFFF
Execution
Command
AT+CAOC
Response
+CAOC: <ccm>
OK
Reference
3GPP TS 27.007
[13]
Note
3.2.4 AT+CBST Select Bearer Service Type
AT+CBST Select Bearer Service Type
Response
+CBST: (list of supported <speed>s),(list of supported <name>s),(list of
supported <ce>s)
OK
Test Command
AT+CBST=?
Parameters
See Write Command
Response
+CBST: <speed>,<name>,<ce>
OK
Read Command
AT+CBST?
Parameters
See Write Command
Response
TA selects the bearer service <name> with data rate <speed>, and the
connection element <ce> to be used when data calls are originated.
OK
ERROR
Write Command
AT+CBST=<spee
d>[,<name>[,<ce
>]]
Parameters
<speed> 0 Auto-bauding (automatic selection of the speed; this
setting is possible in case of 3.1kHz modern and non-transparent service)
4 2400 bps (V.22bis)
5 2400 bps (V.26ter)
6 4800 bps (V.32)
7 9600 bps (V.32)
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12 9600 bps (V.34)
14 14400 bps (V.34)
68 2400 bps (V.110 or X.31 flag stuffing)
70 4800 bps (V.110 or X.31 flag stuffing)
71 9600 bps (V.110 or X.31 flag stuffing)
75 14400 bps (V.110 or X.31 flag stuffing)
<name> 0 Data circuit asynchronous (UDI or 3.1 kHz modem)
4 Data circuit asynchronous (RDI)
<ce> 0 Transparent
1 Non-transparent
2 Both, transparent prefered
3 Both, non-transparent prefered
Parameter Saving
Mode
AT&W_SAVE
Reference
3GPP TS 27.007
[14]
Note
GSM 02.02[1]: lists the allowed combinations of the sub parameters.
3.2.5 AT+CCFC Call Forwarding Number and Conditions Control
AT+CCFC Call Forwarding Number and Conditions Control
Response
+CCFC: (list of supported <reason>s)
OK
Test Command
AT+CCFC=?
Parameter
See Write Command
Write Command
AT+CCFC=<rea
son>,
<mode>[,<numb
er> [,<type>
[,<class>[,<subad
dr>[,<satype>[,ti
me]]]]]]
Response
TA controls the call forwarding supplementary service. Registration,
erasure, activation, deactivation, and status query are supported.
Only ,<reads> and <mode> should be entered with mode (0-2,4)
If <mode>2 and Command successful
OK
If <mode>=2 and Command successful (only in connection with <reads> 0
–3)
For registered call forwarding numbers:
when <mode>=2 and command successful:
+CCFC: <status>,<class1>
[,<number>,<type>[,<subaddr>,<satype>[,<time>]]]
[<CR><LF>+CCFC: <status>,<class2>
[,<number>,<type>[,<subaddr>,<satype>[,<time>]]][…]
OK
If no call forwarding numbers are registered (and therefore all classes are
inactive):
Smart Machine Smart Decision
+CCFC: <status>, <class>
OK
where <status>=0 and <class>=7
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<reason> 0 Unconditional
1 Mobile busy
2 No reply
3 Not reachable
4 All call forwarding
5 All conditional call forwarding
<mode> 0 Disable
1 Enable
2 Query status
3 Registration
4 Erasure
<number> String type (Phone number of forwarding address in format
specified by <type>)
<type> Type of address
<subaddr> String type (subaddress of format specified by <satype>)
<satype> Type of sub-address in integer
<class> 1 Voice (telephony)
2 Data (refers to all bearer services; with <mode>=2 this
may refer only to some bearer service if TA does not support
values 16, 32, 64 and 128)
4 Fax (facsimile services)
7 All classes
<time> 1..30 When "no reply" is enabled or queried, this gives the time
in seconds to wait before call is forwarded, default value is 20.Supported
only if it is multiples of 5.
<status>
0 Not active
1 Active
Max Response
Time
15s
Reference
3GPP TS 27.007
Note
3.2.6 AT+CCWA Call Waiting Control
AT+CCWA Call Waiting Control
SIM800 Series_AT Command Manual_V1.01 53 2013-07-23
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Response
+CCWA: (list of supported <n>s)
OK
Test Command
AT+CCWA=?
Parameter
See Write Command
Response
+CCWA: <n>
OK
Read Command
AT+CCWA?
Parameter
See Write Command
Response
TA controls the Call Waiting supplementary service. Activation,
deactivation and status query are supported.
If <mode>2 and Command successful
OK
If <mode>=2 and Command successful
+CCWA:<status>,<class1>[<CR><LF>+CCWA:<status>,<class2>[...]]
OK
ERROR
If error is related to ME functionality:
+CME ERROR: <err>
Note: <status>=0 should be returned only if service is not active for any
<class> i.e. +CCWA: 0, 7 will be returned in this case.
When mode=2, all active call waiting classes will be reported. In this mode
the Command is aborted by pressing any key.
Write Command
AT+CCWA=<n>[,
<mode>[,<class>]]
Parameters
<n> 0 Disable presentation of an unsolicited result code
1 Enable presentation of an unsolicited result code
<mode> When <mode> parameter not given, network is not
interrogated
0 Disable
1 Enable
2 Query status
<class> Is a sum of integers each representing a class of information
1 Voice (telephony)
2 Data (refers to all bearer services; with <mode>=2 this
may refer only to some bearer service if TA does not support values 16,
32, 64 and 128
4 Fax (facsimile services)
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7 Default(1+2+4)
<status> 0 Not active
1 Enable
Unsolicited result code
RING
+CCWA: <number>,<type>,<class>[,<alpha>]
Parameters
<number> String type (string should be included in quotation marks)
phone number of calling address in format specified by <type>
<type> Type of address octet in integer format;
129 Unknown type
161 National number type
145 International number type
177 Network specific number
<alpha> Optional string type (string should be included in quotation
marks) alphanumeric representation of <number> corresponding to the
entry found in phone book.
Max Response
Time
15s
Reference
3GPP TS 27.007
Note
3.2.7AT+CEER Extended Error Report
AT+CEER Extended Error Report
Response
+CEER: (list of supported <n>s)
OK
Test Command
AT+CEER=?
Parameter
See Write Command
Response
+CEER: <n>
OK
Read Command
AT+CEER?
Parameter
See Write Command
Response
OK
Write Command
AT+CEER=<n>
Parameter
<n> 0 The reason for last call release as text code
1 The reason for last call release as number code
16 17 1s 19 21 22 26 27 28 29 30 31 34 3s 41 42 43 44 47 (No cause) (unassigned (unallocated) number) (no route to destination) (channel unacceptable) (operator determined barring) (normal call clearing) (user busy) (no user responding) (user alerting, no answer) (call rejected) (number changed) (non-selected user clearing) (destination out of order) (invalid number format (incomplete number)) (facility rejected) (response to STATUS ENQUIRY) (normal, unspecified) (emergency call not possible) (network out of order) (temporary failure) (switching equipment congestion) (access information discarded) (requested circuit/channel not available) (resource unavailable, unspecified)
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Response
TA returns an extended report of the reason for the last call release.
+CEER: <report>
OK
Parameter
<report> If AT+CEER=0, return <s>
<s> a string that represents the Cause
If AT+CEER=1, return
Cause:<c>
<c> number representing the Cause
Execution
Command
AT+CEER
Parameters
<c>(number) <s>(string)
0 (No cause)
1 (unassigned (unallocated) number)
3 (no route to destination)
6 (channel unacceptable)
8 (operator determined barring)
16 (normal call clearing)
17 (user busy)
18 (no user responding)
19 (user alerting, no answer)
21 (call rejected)
22 (number changed)
26 (non-selected user clearing)
27 (destination out of order)
28 (invalid number format (incomplete number))
29 (facility rejected)
30 (response to STATUS ENQUIRY)
31 (normal, unspecified)
34 (
emergency call not possible)
38 (network out of order)
41 (temporary failure)
42 (switching equipment congestion)
43 (access information discarded)
44 (requested circuit/channel not available)
47 (resource unavailable, unspecified)
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49 50 55 57 58 63 68 65 69 70 available) 79 81 87 88 91 95 96 97 98 99 100 101 102 111 (quality of service unavailable) (Requested facility not subscribed) (Incoming calls barred within the CUG) (bearer capability not authorized) (bearer capability not presently available) (service or option not available, unspecified) (ACM equal to or greater than ACMmax) (bearer service not implemented) (Requested facility not implemented) (only restricted digital information bearer capability is (service or option not implemented,unspecitied) (invalid transaction identifier value) (user not member of CUG) (incompatible destination) (invalid transit network selection) (semantically incorrect message) (invalid mandatory information) (message type non-existent or not implemented) (message type not compatible with protocol state) (information element non»existent or not implemented) (conditional 1E error) (message not compatible with protocol state) (recovery on timer expiry) (protocol error, unspecified)
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49 (quality of service unavailable)
50 (Requested facility not subscribed)
55 (Incoming calls barred within the CUG)
57 (bearer capability not authorized)
58 (bearer capability not presently available)
63 (service or option not available, unspecified)
68 (ACM equal to or greater than ACMmax)
65 (bearer service not implemented)
69 (Requested facility not implemented)
70 (only restricted digital information bearer capability is
available)
79 (service or option not implemented,unspecified)
81 (invalid transaction identifier value)
87 (user not member of CUG)
88 (incompatible destination)
91 (invalid transit network selection)
95 (semantically incorrect message)
96 (invalid mandatory information)
97 (message type non-existent or not implemented)
98 (message type not compatible with protocol state)
99 (information element non-existent or not implemented)
100 (conditional IE error)
101 (message not compatible with protocol state)
102 (recovery on timer expiry)
111 (protocol error, unspecified)
127 (interworking, unspecified)
Reference
3GPP TS 27.007
[13]
Note
3.2.8 AT+CGMI Request Manufacturer Identification
AT+CGMI Request Manufacturer Identification
Test Command
AT+CGMI=?
Response
OK
Execution
Command
Response
TA returns manufacturer identification text.
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<manufacturer>
OK
AT+CGMI
Parameter
<manufacturer> The ID of manufacturer
Reference
3GPP TS 27.007
[13]
Note
3.2.9 AT+CGMM Request Model Identification
AT+CGMM Request Model Identification
Test Command
AT+CGMM=?
Response
OK
Response
TA returns product model identification text.
<model>
OK
Execution
Command
AT+CGMM
Parameter
<model> Product model identification text
Reference
3GPP TS 27.007
[13]
Note
3.2.10 AT+CGMR Request TA Revision Identification of Software Release
AT+CGMR Request TA Revision Identification of Software Release
Test Command
AT+CGMR=?
Response
OK
Response
TA returns product software version identification text.
Revision: <revision>
OK
Execution
Command
AT+CGMR
Parameter
<revision> Product software version identification text
Reference
3GPP TS 27.007
[13]
Note
3.2.11 AT+CGSN Request Product Serial Number Identification (Identical with +GSN)
AT+CGSN Request Product Serial Number Identification (Identical with +GSN)
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Test Command
AT+CGSN=?
Response
OK
Response
see +GSN
<sn>
OK
Execution
Command
AT+CGSN
Parameter
<sn> International mobile equipment identity (IMEI)
Reference
3GPP TS 27.007
[13]
Note
3.2.12 AT+CSCS Select TE Character Set
AT+CSCS Select TE Character Set
Response
+CSCS: (list of supported <chset>s)
OK
Test Command
AT+CSCS=?
Parameter
<chset> "GSM" GSM 7 bit default alphabet (3GPP TS 23.038);
"UCS2" 16-bit universal multiple-octet coded character set
(ISO/IEC10646); UCS2 character strings are converted to
hexadecimal numbers from 0000 to FFFF; e.g.
"004100620063" equals three 16-bit characters with decimal
values 65, 98 and 99
"IRA" International reference alphabet (ITU-T T.50)
"HEX" Character strings consist only of hexadecimal
b
ers from 00 to FF;
"PCCP" PC character set Code
"PCDN" PC Danish/Norwegian character set
"8859-1" ISO 8859 Latin 1 character set
Response
+CSCS: <chset>
OK
Read Command
AT+CSCS?
Parameter
See Test Command
Write Command
AT+CSCS=<chse
t>
Response
Sets which character set <chset> are used by the TE. The TA can then
convert character strings correctly between the TE and ME character sets.
OK
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If error is related to ME functionality:
+CME ERROR: <err>
Parameter
See Test Command
Parameter Saving
Mode
AT&W_SAVE
Reference
3GPP TS 27.007
[13]
Note
3.2.13 AT+CSTA Select Type of Address
AT+CSTA Select Type of Address
Response
+CSTA: (list of supported <type>s)
OK
Test Command
AT+CSTA=?
Parameter
See Write Command
Response
+CSTA: <type>
OK
Read Command
AT+CSTA?
Parameter
<type> Current address type setting.
Response
OK
If <type> is not in the parameter range:
ERROR
Write Command
AT+CSTA=<type
>
Parameter
<type> Type of address octet in integer format;
129 Unknown type
161 National number type
145 International number type
177 Network specific number
Reference
3GPP TS 27.007
[13]
Note
The ATD Command overrides this setting when a number is dialed.
3.2.14 AT+CHLD Call Hold and Multiparty
AT+CHLD Call Hold and Multiparty
Test Command Response
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+CHLD: (list of supported <n>s)
OK
AT+CHLD=?
Parameter
See Write Command
Response
TA controls the supplementary services Call Hold, Multiparty and Explicit
Call Transfer. Calls can be put on hold, recovered, released, added to
conversation, and transferred.
Note These supplementary services are only applicable to tele service 11
(Speech: Telephony).
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CHLD=<n>
Parameter
<n> 0 Releases all held calls or sets User Determined User Busy
(UDUB) for a waiting call
1 Releases all active calls (if any exist) and accepts the other
(held or waiting) call.
1x Releases a specific call x
2 Place all active calls on hold (if any) and accept the other
(held or waiting) call.
2x Places all active calls on hold except call X with which
communication shall be supported.
3 Adds a held call to the conversation.
4 Connects the two calls and disconnects the subscriber from
both calls(ECT)
Max Response
Time
20s
Reference Note
3.2.15 AT+CIMI Request International Mobile Subscriber Identity
AT+CIMI Request International Mobile Subscriber Identity
Test Command
AT+CIMI=?
Response
OK
Execution
Command
AT+CIMI
Response
TA returns <IMSI>for identifying the individual SIM which is attached to
ME.
<IMSI>
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OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<IMSI> International Mobile Subscriber Identity (string without
double quotes)
Max Response
Time
20s
Reference
3GPP TS 27.007
[13]
Note
3.2.16 AT+CLCC List Current Calls of ME
AT+CLCC List Current Calls of ME
Response
+CLCC: (0,1)
OK
Test Command
AT+CLCC=?
Parameter
See Write Command
Response
+CLCC: <n>
OK
Read Command
AT+CLCC?
Parameter
See Write Command
Response
OK
Write Command
AT+CLCC=<n>
Parameter
<n> 0 Don’t report a list of current calls of ME automatically
when the current call status changes.
1 Report a list of current calls of ME automatically when the
current call status changes.
Execution
Command
AT+CLCC
Response
TA returns a list of current calls of ME.
Note: If Command succeeds but no calls are available, no information
response is sent to TE.
[+CLCC: <id1>,<dir>,<stat>,<mode>,<mpty>[,<number>,<type
>,<alphaID>]
[<CR><LF>+CLCC: <id2>,<dir>,<stat>,<mode>,<mpty>
[,<number>,<type>,<alphaID>][...]]]
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OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<idx> 1..7 Call identification number
This number can be used in +CHLD command operations
<dir> 0 Mobile originated (MO) call
1 Mobile terminated (MT) call
<stat> State of the call:
0 Active
1 Held
2 Dialing (MO call)
3 Alerting (MO call)
4 Incoming (MT call)
5 Waiting (MT call)
6 Disconnect
<mode> Bearer/tele service:
0 Voice
1 Data
2 Fax
<mpty> 0 Call is not one of multiparty (conference) call parties
1 Call is one of multiparty (conference) call parties
<number> String type (string should be included in quotation marks)
phone number in format specified by <type>.
<type> Type of address
<alphaId> String type (string should be included in quotation marks)
alphanumeric representation of <number> corresponding to the entry
found in phone book.
Parameter Saving
Mode
AUTO_SAVE
Reference
3GPP TS 27.007
[13][14]
Note
3.2.17 AT+CLCK Facility Lock
AT+CLCK Facility Lock
Response
+CLCK: (list of supported <fac>s)
OK
Test Command
AT+CLCK=?
Parameter
See Write Command
Write Command Response
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This Command is used to lock, unlock or interrogate a ME or a network
facility <fac>. Password is normally needed to do such actions. When
querying the status of a network service (<mode>=2) the response line for
‘not active’ case (<status>=0) should be returned only if service is not
active for any <class>.
If <mode>2 and Command is successful
OK
If <mode>=2 and Command is successful
+CLCK: <status>[,<class1>[<CR><LF>+CLCK:
<status>,<class2>[…]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
AT+CLCK=<fac>
,<mode>[,<passw
d>[,<class>]]
Parameters
<fac>
"AO" BAOC (Barr All Outgoing Calls)
"OI" BOIC (Barr Outgoing International Calls)
"OX" BOIC-exHC (Barr Outgoing International Calls
except to Home Country)
"AI" BAIC (Barr All Incoming Calls)
"IR" BIC-Roam (Barr Incoming Calls when Roaming
outside the home country)
"FD" SIM card or active application in the UICC (GSM or
USIM) fixed dialling memory feature (if PIN2 authentication has not been
done during the current session, PIN2 is required as <passwd>)
"SC" SIM (lock SIM/UICC card) (SIM/UICC asks
password in MT power-up and when this lock command issued)
Correspond to PIN1 code.
"PN" Network Personalization, Correspond to NCK code
"PU" Network subset Personalization
Correspond to NSCK code
"PP" Service Provider Personalization
Correspond to SPCK code
<mode> 0 unlock
1 lock
2 query status
<passwd> String type (Shall be the same as password specified for the
facility from the MT user interface or with command Change Password
+CPWD)
<class> 1 Voice (telephony)
2 Data refers to all bearer services; with <mode>=2 this
may refer only to some bearer service if TA does not support values 16,
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32, 64 and 128)
4 Fax
(facsimile services)
7 All classes
<status> 0 Not active
1 Active
Max Response
Time
15s
Reference
3GPP TS 27.007
[14]
Note
CME errors if SIM not inserted or PIN is not entered.
3.2.18 AT+CLIP Calling Line Identification Presentation
AT+CLIP Calling Line Identification Presentation
Response
+CLIP: (list of supported <n>s)
OK
Test Command
AT+CLIP=?
Parameter
See Write Command
Response
+CLIP: <n>, <m>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CLIP?
Parameters
See Write Command
Response
TA enables or disables the presentation of the CLI at the TE. It has no
effect on the execution of the supplementary service CLIP in the network.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<n> 0 Disable +CLIP notification.
1 Enable +CLIP notification.
<m> 0 CLIP not provisioned
1 CLIP provisioned
2 unknown (e.g. no network, etc.)
Write Command
AT+CLIP=<n>
Unsolicited Result Code
When the presentation of the CLI at the TE is enabled (and calling
subscriber allows), an unsolicited result code is returned after every RING
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(or +CRING: <type>) at a mobile terminating call.
+CLIP: <number>,<type>[,<subaddr>,<satype>,<alphaId>,<CLI
validity>]
Parameters
<number> String type (string should be included in quotation marks)
phone number of calling address in format specified by <type>.
<type> Type of address octet in integer format;
129 Unknown type
161 National number type
145 International number type
177 Network specific number
<subaddr> String type (subaddress of format specified by <satype>)
<satype> Integer type (type of subaddress)
<alphaId> String type (string should be included in quotation marks)
alphanumeric representation of <number> corresponding to the entry
found in phone book.
<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.
Max Response
Time
15s
Reference Note
3.2.19 AT+CLIR Calling Line Identification Restriction
AT+CLIR Calling Line Identification Restriction
Response
+CLIR: (list of supported <n>s)
OK
Test Command
AT+CLIR=?
Parameter
See Write Command
Response
+CLIR: <n>, <m>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CLIR?
Parameters
See Write Command
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Response
TA restricts or enables the presentation of the CLI to the called party when
originating a call.
The Command overrides the CLIR subscription (default is restricted or
allowed) when temporary mode is provisioned as a default adjustment for
all following outgoing calls. This adjustment can be revoked by using the
opposite Command.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CLIR=<n>
Parameters
<n> (parameter sets the adjustment for outgoing calls):
0 Presentation indicator is used according to the subscription of
the CLIR service.
1 CLIR invocation
2 CLIR suppression
<m> (parameter shows the subscriber CLIR service status in the
network):
0 CLIR not provisioned
1 CLIR provisioned in permanent mode
2 Unknown (e.g. no network, etc.)
3 CLIR temporary mode presentation restricted
4 CLIR temporary mode presentation allowed
Max Response
Time
15s
Reference Note
3.2.20 AT+CMEE Report Mobile Equipment Error
AT+CMEE Report Mobile Equipment Error
Response
+CMEE: (list of supported <n>s)
OK
Test Command
AT+CMEE=?
Parameter
See Write Command
Response
+CMEE: <n>
OK
Read Command
AT+CMEE?
Parameter
See Write Command
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Response
TA disables or enables the use of result code +CME ERROR: <err> as an
indication of an error relating to the functionality of the ME.
OK
If error is related to ME functionality:
+CME ERROR:<err>
Write Command
AT+CMEE=[<n>
]
Parameter
<n> 0 Disable +CME ERROR: <err> result code and use ERROR
instead.
1 Enable +CME ERROR: <err> result code and use numeric
<err>
2 Enable +CME ERROR: <err> result code and use verbose
<err> values
Reference
3GPP TS 27.007
[13]
Note
3.2.21 AT+COLP Connected Line Identification Presentation
AT+COLP Connected Line Identification Presentation
Response
+COLP: (list of supported <n>s)
OK
Test Command
AT+COLP=?
Parameter
See Write Command
Response
+COLP: <n>,<m>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+COLP?
Parameters
See Write Command
Write Command
AT+COLP=<n>
Response
TA enables or disables the presentation of the COL (Connected Line) at the
TE for a mobile originated call. It has no effect on the execution of the
supplementary service COLR in the network.
Intermediate result code is returned from TA to TE before any +CR or
V.25ter responses.
OK
If error is related to ME functionality:
+CME ERROR: <err>
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Parameters
<n> (parameter sets/shows the result code presentation status in the
TA):
0 Disable +COLP notification
1 Enable +COLP notification
<m> (parameter shows the subscriber COLP service status in the
network):
0 COLP not provisioned
1 COLP provisioned
2 Unknown (e.g. no network, etc.)
Intermediate result code
When enabled (and called subscriber allows), an intermediate result code is
returned before any +CR or V.25ter responses:
+COLP: <number>,<type>[,<subaddr>,<satype> ,<alphaId>]
Parameters
<number> String type (string should be included in quotation marks)
phone number of format specified by <type>
<type> Type of address octet in integer format;
129 Unknown type
161 National number type
145 International number type
177 Network specific number
<subaddr> String type (string should be included in quotation marks)
sub address of format specified by <satype>
<satype> Type of sub address octet in integer format (refer GSM
04.08 [8] sub clause 10.5.4.8)
<alphaId> String type (string should be included in quotation marks)
alphanumeric representation of <number> corresponding to the entry
found in phone book.
Reference Note
3.2.22 AT+COPS Operator Selection
AT+COPS Operator Selection
Test Command
AT+COPS=?
Response
TA returns a list of quadruplets, each representing an operator present in
the network. Any of the formats may be unavailable and should then be an
empty field. The list of operators shall be in order: home network,
networks referenced in SIM, and other networks.
+COPS: (list of supported<stat>,long alphanumeric<oper>,short
alphanumeric<oper>,numeric <oper>)s[,,(list of supported <mode>s),
(list of supported <format>s)]
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OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
See Write Command
Response
TA returns the current mode and the currently selected operator. If no
operator is selected, <format> and <oper> are omitted.
+COPS: <mode>[,<format>, <oper>]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+COPS?
Parameters
See Write Command
Response
TA forces an attempt to select and register the GSM network operator. If
the selected operator is not available, no other operator shall be selected
(except <mode>=4). The selected operator name format shall apply to
further read commands (+COPS?).
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+COPS=<mo
de>,[<format>[,<
oper>]]
Parameters
<stat> 0 Unknown
1 Operator available
2 Operator current
3 Operator forbidden
<oper> Refer to [27.007]
operator in format as per <format>
<mode> 0 Automatic mode; <oper> field is ignored
1 Manual (<oper> field shall be present, and <AcT>
optionally)
2 manual deregister from network
3 set only <format> (for read Command +COPS?) - not
shown in Read Command response
4 Manual/automatic (<oper> field shall be present); if
manual selection fails, automatic mode (<mode>=0) is
entered
<format> 0 Long format alphanumeric <oper>
1 Short format alphanumeric <oper>
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2 Numeric <oper>; GSM Location Area Identification
number
Max Response
Time
Test command: 45 seconds
Write command: 120 seconds
Reference
3GPP TS 27.007
[14]
Note
3.2.23 AT+CPAS Phone Activity Status
AT+CPAS Phone Activity Status
Response
+CPAS: (list of supported <pas>s)
OK
Test Command
AT+CPAS=?
Parameter
See Execution Command
Response
TA returns the activity status of ME.
+CPAS: <pas>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution
Command
AT+CPAS
Parameter
<pas> 0 Ready (MT allows commands from TA/TE)
2 Unknown (MT is not guaranteed to respond to
t
ructions)
3 Ringing (MT is ready for commands from TA/TE, but the
ringer is active)
4 Call in progress (MT is ready for commands from TA/TE,
a call is in progress)
Reference
3GPP TS 27.007
[13]
Note
3.2.24 AT+CPBF Find Phonebook Entries
AT+CPBF Find Phonebook Entries
Test Command
AT+CPBF=?
Response
+CPBF: maximum length of field <nlength>,maximum length of field
<tlength>
OK
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If error is related to ME functionality:
+CME ERROR: <err>
Parameters
See Write Command
Response
TA returns phone book entries (from the current phone book memory
storage selected with +CPBS) which contains alphanumeric string
<findtext>.
[+CPBF:<index1>,<number>,<type>,<text>]
[[…]<CR><LF>+CBPF:<index2>,<number>,<type>,<text>]
OK
Write Command
AT+CPBF=[<find
text>]
Parameters
<findtext> String type(string should be included in quotation marks)
field of maximum length <tlength> in current TE character set specified by
+CSCS.
<index1> Integer type values in the range of location numbers of
phone book memory
<index2> Integer type values in the range of location numbers of phone
book memory
<number> String type (string should be included in quotation marks)
phone number of format <type>
<type> Type of address octet in integer format ;
129 Unknown type
145 International number type
<text> String type (string should be included in quotation marks) field
of maximum length <tlength> in current TE character set specified by
+CSCS.
<nlength> Integer type value indicating the maximum length of field
<number>
<tlength> Integer type value indicating the maximum length of field
<text>
Max Response
Time
30 seconds (complete reading of a 250 records full phonebook)
3 seconds(string present in a 250 records full phonebook)
1 second(string not present)
We use the China Mobile sim cards for testing, which produced by Axalto
at 2010 for Shanghai. Use other sim cards may have different results.
Reference
3GPP TS 27.007
[13]
Note
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3.2.25 AT+CPBR Read Current Phonebook Entries
AT+CPBR Read Current Phonebook Entries
Response
TA returns location range supported by the current storage as a compound
value and the maximum lengths of <number> and <text> fields.
+CPBR: (list of supported <index>s), <nlength>, <tlength>
OK
Test Command
AT+CPBR=?
Parameters
<index> Location number
<nlength> Max. length of phone number
<tlength> Max. length of text for number
Response
TA returns phone book entries in location number range <index1>...
<index2> from the current phone book memory storage selected with
+CPBS. If <index2> is left out, only location <index1> is returned.
+CPBR:<index1>,<number>,<type>,<text>
[[…]<CR><LF>+CPBR: <index2>, <number>, <type>, <text>]
OK
Write Command
AT+CPBR=<inde
x1>[,<index2>]
Parameters
<index1> Read as of this location number
<index2> Read to this location number
<number> Phone number
<type> Type of number
<text> Text for phone number in current TE character set specified by
+CSCS.
Max Response
Time
3 seconds (single reading)
30 seconds (complete reading of a 250 records full phonebook.
We use the China Mobile sim cards for testing, which produced by Axalto
at 2010 for Shanghai. Use other sim cards may have different results.
Reference
3GPP TS 27.007
[13]
Note
3.2.26 AT+CPBS Select Phonebook Memory Storage
AT+CPBS Select Phonebook Memory Storage
Test Command
AT+CPBS=?
Response
+CPBS: (list of supported <storage>s)
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OK
Parameter
See Write Command
Response
+CPBS: <storage>,<used>,<total>
OK
Read Command
AT+CPBS?
Parameters
See Write Command
Response
TA selects current phone book memory storage, which is used by other
phone book commands.
OK
Write Command
AT+CPBS=<stora
ge>
Parameters
<storage>
"ON" SIM (or MT) own numbers (MSISDNs) list
(reading of this storage may be available through +CNUM
also). When storing information in the SIM/UICC, if a SIM
card is present or if a UICC with an active GSM application
is present, the information in EFMSISDN under
DFTelecom is selected.
"SM" SIM/UICC phonebook. If a SIM card is present or
if a UICC with an active GSM application is present, the
EFADN under DFTelecom is selected.
"ME" ME phonebook
<used> Integer type value indicating the total number of used
locations in selected memory
<total> Integer type value indicating the total number of locations
in selected memory
Max Response
Time
3 seconds
Reference
3GPP TS 27.007
[13]
Note
3.2.27 AT+CPBW Write Phonebook Entry
AT+CPBW Write Phonebook Entry
Test Command
AT+CPBW=?
Response
TA returns location range supported by the current storage, the maximum
length of <number> field, supported number formats of the storage, and
the maximum length of <text> field.
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+CPBW: (list of supported <index>s), <nlength>, (list of supported
<type>s), <tlength>
OK
Parameters
See Write Command
Response
TA writes phone book entry in location number <index> in the current
phone book memory storage selected with +CPBS. Entry fields written are
phone number <number> (in the format <type>) and text <text> associated
with the number. If those fields are omitted, phone
b
ook entry is deleted. If
<index> is left out, but <number> is given, entry is written to the first free
location in the phone book.
OK
Write Command
AT+CPBW=<inde
x>[,<number>,[<t
ype>,[<text>]]]
Parameters
<nlength> Max length of phone number
<tlength> Max length of text for number
<index> Location number
<number> Phone number
<type> Type of number;
129 National number type
145 International number type
<text> String type (string should be included in quotation marks): text
for phone number in current TE character set specified by +CSCS.
Note: The following characters in <text> must be entered via the
escape sequence:
GSM char. Seq. Seq.(hex) Note
\ \5C 5C 35 43 (backslash)
" \22 5C 32 32 (string delimiter)
BSP \08 5C 30 38 (backspace)
NULL \00 5C 30 30 (GSM null)
‘0’ (GSM null) may cause problems for application layer software
when reading string lengths.
Max Response
Time
3 seconds
Reference
3GPP TS 27.007
[13]
Note
3.2.28 AT+CPIN Enter PIN
AT+CPIN Enter PIN
Test Command
AT+CPIN=?
Response
OK
Read Command Response
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TA returns an alphanumeric string indicating whether some password is
required or not.
+CPIN: <code>
OK
AT+CPIN?
Parameter
<code>
READY MT is not pending for any password
SIM PIN MT is waiting SIM PIN to be given
SIM PUK MT is waiting for SIM PUK to be given
PH_SIM PIN ME is waiting for phone to SIM card (antitheft)
PH_SIM PUK ME is waiting for SIM PUK (antitheft)
SIM PIN2 PIN2, e.g. for editing the FDN book possible only
if preceding Command was acknowledged with +CME
ERROR:17
SIM PUK2 Possible only if preceding Command was
acknowledged with error +CME ERROR: 18.
Response
TA stores a password which is necessary before it can be operated (SIM
PIN, SIM PUK, PH-SIM PIN, etc.).
If the PIN required is SIM PUK or SIM PUK2, the second pin is required.
This second pin, <new pin>, is used to replace the old pin in the SIM.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CPIN=<pin>[
,<new pin>]
Parameters
<pin> String type; password
<new pin> String type; If the PIN required is SIM PUK or SIMPUK2:
new password
Max Response
Time
5s
Reference
3GPP TS 27.007
[13]
Note
3.2.29 AT+CPWD Change Password
AT+CPWD Change Password
Test Command
AT+CPWD=?
Response
TA returns a list of pairs which present the available facilities and the
maximum length of their password.
+CPWD: (list of supported <fac>s, list of supported <pwdlength>s)
OK
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Parameters
<fac> See Write Command
<pwdlength> Integer max. length of password
Response
TA sets a new password for the facility lock function.
OK
Write Command
AT+CPWD =
<fac>, <oldpwd>,
<newpwd> Parameters
<fac>
"AO" BAOC (Barr All Outgoing Calls)
"OI" BOIC (Barr Outgoing International Calls)
"OX" BOIC-exHC (Barr Outgoing International Calls
except to Home Country)
"AI" BAIC (Barr All Incoming Calls)
"IR" BIC-Roam (Barr Incoming Calls when Roaming
outside the home country)
"AB" All Barring services
"P2" SIM PIN2
"SC" SIM (lock SIM/UICC card) (SIM/UICC asks password
in MT power-up and when this lock command issued) Correspond to PIN1
code.
<oldpwd> String type (string should be included in quotation marks):
password specified for the facility from the user interface or with
command. If an old password has not yet been set, <oldpwd> is not to
enter.
<newpwd> String type (string should be included in quotation marks):
new password
Max Response
Time
15s
Reference
3GPP TS 27.007
[13]
Note
3.2.30 AT+CR Service Reporting Control
AT+CR Service Reporting Control
Response
+CR: (list of supported <mode>s)
OK
Test Command
AT+CR=?
Parameter
See Write Command
Read Command
AT+CR?
Response
+CR: <mode>
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OK
Parameter
See Write Command
Response
TA controls whether or not intermediate result code +CR: <serv> is
returned from the TA to the TE at a call set up.
OK
Parameter
<mode> 0 Disable
1 Enable
Intermediate result code
If enabled, an intermediate result code is transmitted at the point during
connect negotiation at which the TA has determined which speed and
quality of service will be used, before any error control or data
compression reports are transmitted, and before any final result code (e.g.
CONNECT) is transmitted.
+CR:<serv>
Write Command
AT+CR=[<mode
>]
Parameter
<serv> ASYNC Asynchronous transparent
SYNC Synchronous transparent
REL ASYNC Asynchronous non-transparent
REL SYNC Synchronous non-transparent
GPRS For GPRS
Reference
3GPP TS 27.007
[13]
Note
3.2.31 AT+CRC Set Cellular Result Codes for Incoming Call Indication
AT+CRC Set Cellular Result Codes for Incoming Call Indication
Response
+CRC: (list of supported <mode>s)
OK
Test Command
AT+CRC=?
Parameter
See Write Command
Response
+CRC: <mode>
OK
Read Command
AT+CRC?
Parameter
See Write Command
Write Command Response
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TA controls whether or not the extended format of incoming call
indication is used.
OK
Parameter
<mode> 0 Disable extended format
1 Enable extended format
Omitted Use previous value
Unsolicited Result Code
When enabled, an incoming call is indicated to the TE with unsolicited
result code +CRING: <type> instead of the normal RING.
AT+CRC=[<mod
e>]
Parameter
<type> ASYNC Asynchronous transparent
SYNC Synchronous transparent
REL ASYNC Asynchronous non-transparent
REL SYNC Synchronous non-transparent
FAX Facsimile
VOICE Voice
Reference
3GPP TS 27.007
[13]
Note
3.2.32 AT+CREG Network Registration
AT+CREG Network Registration
Response
+CREG: (list of supported <n>s)
OK
Test Command
AT+CREG=?
Parameter
See Write Command
Read Command
AT+CREG?
Response
TA returns the status of result code presentation and an integer <stat>
which shows whether the network has currently indicated the registration
of the ME. Location information elements <lac> and <ci> are returned
only when <n>=2 and ME is registered in the network.
+CREG: <n>,<stat>[,<lac>,<ci>]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CREG=[<n>
]
Response
TA controls the presentation of an unsolicited result code +CREG: <stat>
when <n>=1 and there is a change in the ME network registration status.
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OK
Parameters
<n> 0 Disable network registration unsolicited result code
1 Enable network registration unsolicited result code
+CREG: <stat>
2 Enable network registration unsolicited result code with
location information +CREG: <stat>[,<lac>,<ci>]
<stat> 0 Not registered, MT is not currently searching a new
operator to register to
1 Registered, home network
2 Not registered, but MT is currently searching a new
operator to register to
3 Registration denied
4 Unknown
5 Registered, roaming
<lac> String type (string should be included in quotation marks);
two byte location area code in hexadecimal format
<ci> String type (string should be included in quotation marks);
two byte cell ID in hexadecimal format
Unsolicited Result Code
If <n>=1 and there is a change in the MT network registration status
+CREG: <stat>
If <n>=2 and there is a change in the MT network registration status or a
change of the network cell:
+CREG: <stat>[,<lac>,<ci>]
Parameters
See Write Command
Parameter Saving
Mode
AT&W_SAVE
Reference
3GPP TS 27.007
[13]
Note
3.2.33 AT+CRLP Select Radio Link Protocol Parameters
AT+CRLP Select Radio Link Protocol Parameters
Response
TA returns values supported. RLP versions 0 and 1 share the same
parameter set.
+CRLP: (list of supported <iws>s),(list of supported <mws>s),(list of
supported <T1>s),(list of supported <N2>s),(list of supported <T4>s)
OK
Test Command
AT+CRLP=?
Parameters
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See Write Command
Response
TA returns current settings for RLP version. RLP versions 0 and 1 share
the same parameter set.
+CRLP: <iws>,<mws>,<T1>,<N2>,<T4>
OK
Read Command
AT+CRLP?
Parameters
See Write Command
Response
TA sets radio link protocol (RLP) parameters used when non-transparent
data calls are setup.
OK
Write Command
AT+CRLP=<iws
>[,<mws>[,<T1>[
,<N2> [,<T4>]]]]
Parameters
<iws> 0-61 Interworking window size (IWF to MS)
<mws> 0-61 Mobile window size(MS to IWF)
<T1> 44-255 Acknowledgment timer T1 in 10 ms units
<N2> 1-255 Retransmission attempts N2
<T4> 7 Re-sequencing period in integer format, in units of 10 ms.
Reference
3GPP TS 27.007
[13]
Note
3.2.34 AT+CRSM Restricted SIM Access
AT+CRSM Restricted SIM Access
Test Command
AT+CRSM=?
Response
OK
Response
+CRSM: <sw1>, <sw2> [,<response>]
OK
ERROR
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CRSM=<Co
mmand>[,<fileId
>[,<P1>,<P2>,<P
3>[,<data>]]]
Parameters
<Command>
176 READ BINARY
178 READ RECORD
192 GET RESPONSE
214 UPDATE BINARY
220 UPDATE RECORD
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242 STATUS
All other values are reserved; refer GSM 11.11.
<fileId> Integer type; this is the identifier for an elementary data file on
SIM. Mandatory for every Command except STATUS
<P1>,<P2>,<P3> Integer type, range 0 – 255
Parameters to be passed on by the ME to the SIM; refer GSM
11.11.
<data> Information which shall be written to the SIM (hex-decimal
character format)
<sw1>, <sw2> Integer type, range 0 - 255
Status information from the SIM about the execution of the
actual Command. These parameters are delivered to the TE in
both cases, on successful or failed execution of the Command;
refer GSM 11.11.
<response> Response of a successful completion of the Command
previously issued (hexadecimal character format)
Reference
3GPP TS 27.007
GSM 11.11
Note
3.2.35 AT+CSQ Signal Quality Report
AT+CSQ Signal Quality Report
Test Command
AT+CSQ=?
Response
+CSQ: (list of supported <rssi>s),(list of supported <ber>s)
OK
Response
+CSQ: <rssi>,<ber>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution Command returns received signal strength indication <rssi>
and channel bit error rate <ber> from the ME. Test Command returns
values supported by the TA.
Execution
Command
AT+CSQ
Parameters
<rssi>
0 -115 dBm or less
1 -111 dBm
2...30 -110... -54 dBm
31 -52 dBm or greater
99 not known or not detectable
<ber> (in percent):
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0...7 As RXQUAL values in the table in GSM 05.08 [20]
subclause 7.2.4
99 Not known or not detectable
Reference
3GPP TS 27.007
[13]
Note
3.2.36 AT+FCLASS FAX: Select, Read or Test Service Class
AT+FCLASS FAX: Select, Read or Test Service Class
Response
+FCLASS: (list of supported <class>s)
OK
Test Command
AT+FCLASS=?
Parameter
See Write Command
Response
+FCLASS: <class>
OK
Read Command
AT+FCLASS?
Parameter
See Write Command
Response
TA sets a particular mode of operation (data fax). This causes the TA to
process information in a manner suitable for that type of information
OK
Write Command
AT+FCLASS=<cl
ass>
Parameter
<class>
0 data
1 fax class 1 (TIA-578-A)
Reference
3GPP TS 27.007
[13]
Note
3.2.37 AT+FMI FAX: Report Manufactured ID
AT+FMI FAX: Report Manufactured ID
Test Command
AT+FMI=?
Response
OK
Execution
Command
AT+FMI
Response
TA reports one or more lines of information text which permit the user to
identify the manufacturer.
<manufacturer Id>
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OK
Parameter
<manufacturer Id> The ID of manufacturer
Reference
EIA/TIA-578-D
Note
3.2.38 AT+FMM FAX: Report Model ID
AT+FMM FAX: Report Model ID
Test Command
AT+FMM=?
Response
OK
Response
TA reports one or more lines of information text which permit the user to
identify the specific model of device.
<model Id>
OK
Execution
Command
AT+FMM
Parameter
<model Id> The ID of model
Reference
EIA/TIA-578-D
Note
3.2.39 AT+FMR FAX: Report Revision ID
AT+FMR FAX: Report Revision ID
Test Command
AT+FMR=?
Response
OK
Response
TA reports one or more lines of information text which permit the user to
identify the version, revision level or data or other information of the
device.
Revision:<Revision Id>
OK
Execution
Command
AT+FMR
Parameter
<Revision Id> The version, revision level or data or other information
of the device.
Reference
EIA/TIA-578-D
Note
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3.2.40 AT+VTD Tone Duration
AT+VTD Tone Duration
Response
+VTD: (list of supported <n>s)
OK
Test Command
AT+VTD=?
Parameter
See Write Command
Response
+VTD: <n>
OK
Read Command
AT+VTD?
Parameter
See Write Command
Response
This command refers to an integer <n> that defines the length of tones
emitted as a result of the +VTS command. This does not affect the D
command.
OK
Write Command
AT+VTD=<n>
Parameter
<n> 1-255 Duration of the tone in 1/10 seconds
Parameter Saving
Mode
AT&W_SAVE
Reference
3GPP TS 27.007
[13]
Note
3.2.41 AT+VTS DTMF and Tone Generation
AT+VTS DTMF and Tone Generation
Response
+VTS: (list of supported <dtmf>s),(list of supported <duration>s)
OK
Test Command
AT+VTS=?
Parameters
See Write Command
Write Command
Generate tone
Duration is set by
+VTD
AT+VTS=<dtmf-
string>
Response
This Command allows the transmission of DTMF tones and arbitrary
tones in voice mode. These tones may be used (for example) when
announcing the start of a recording period.
Note: D is used only for dialing.
OK
If error is related to ME functionality:
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+CME ERROR: <err>
Note: The Command is writing only.
Parameters
<dtmf-string> Which has a max length of 20 characters, must be entered
between double quotes ("") and consists of combinations of the following
separated by commas. But a single character does not require quotes.
1) <dtmf> A single ASCII characters in the set 0-9, #,*, A-D.
This is interpreted as a sequence of DTMF tones whose duration
is set by the +VTD Command.
2) {<dtmf>, <duration>} This is interpreted as a DTMF tone
whose duration is determined by <duration>.
<duration> Duration of the tone in 1/10 seconds range :1-255
Max Response
Time
number of DTMF characters*duration.
Reference
3GPP TS 27.007
[13]
Note
3.2.42 AT+CMUX Multiplexer Control
AT+CMUX Multiplexer Control
Response
+CMUX: (0)
OK
Test Command
AT+CMUX=?
Parameters
See Write Command
Response:
+CMUX:[<mode>[,<subset>[,<port_speed>[,<N1>[,<T1>[,<N2>[,<T2
>[,<T3>[,<k>]]]]]]]]]
OK
ERROR
Read Command
AT+CMUX?
Parameters
<mode> Multiplexer transparency mechanism
0 Basic option
<subset> The way in which the multiplexer control channel is set up
0 UIH frames used only
<port_speed> Transmission rate
1 9600 bits/t
2 19200 bits/t
3 38400 bits/t
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4 57600 bits/t
5 115200 bit/s
6 230400 bits/t
7 460800 bits/t
Proprietary values, available if MUX NEW PORT
SPEED FTR is activated
8 921600 bits/t
Proprietary values, available if MUX NEW PORT
SPEED FTR is activated
<N1> Maximum frame size
1-255 Default: 127
<T1> Acknowledgement timer in units of ten milliseconds
1-255 Default:10 (100 ms)
<N2> Maximum number of re-transmissions
0-100 Default:3
<T2> Max Response Timer for the multiplexer control channel in
units of ten milliseconds
2-255 Default:30
<T3> Wake up Max Response Timers in seconds
1-255 Default:10
<k> Window size, for Advanced operation with Error Recovery
options
1-7 Default:2
Response
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CMUX=<mo
de>
Parameters
<mode> Multiplexer transparency mechanism
0 Basic option
Reference
3GPP TS 27.007
[13]
Note
The multiplexing transmission rate is according to the current serial baud
rate. It is recommended to enable multiplexing protocol under 115200
bit/s baud rate
Multiplexer control channels are listed as follows:
Channel Number Type DLCI
None Multiplexer Control 0
1 3GPP TS 27.007 and 005 1
2 3GPP TS 27.007 and 005 2
3 3GPP TS 27.007 and 005 3
4 3GPP TS 27.007 and 005 4
3.2.43 AT+CNUM Subscriber Number
AT+CNUM Subscriber Number
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Test Command
AT+CNUM=?
Response
OK
Response
+CNUM: [<alpha1>],<number1>,<type1>[,<speed>,<service>]
[<CR><LF>+CNUM:[<alpha2>],<number2>,<type2>[,<speed>,<serv
ice>]
[...]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution
Command
AT+CNUM
Parameters
<alphax> Optional alphanumeric string associated with <numberx>;
used character set should be the one selected with Command Select TE
Character Set +CSCS
<numberx> String type (string should be included in quotation marks)
phone number of format specified by <typex>
<typex> Type of address octet in integer format (refer GSM04.08[8]
subclause 10.5.4.7)
<speed> As defined by the +CBST Command
<service> (service related to the phone number:)
0 Asynchronous modem
1 Synchronous modem
2 PAD Access (asynchronous)
3 Packet Access (synchronous)
4 Voice
5 Fax
Reference
3GPP TS 27.007
[13]
Note
3.2.44 AT+CPOL Preferred Operator List
AT+CPOL Preferred Operator List
Response
+CPOL: (list of supported <index>s),(list of supported <format>s)
OK
Test Command
AT+CPOL=?
Parameters
See Write Command
Read Command
AT+CPOL?
Response
+CPOL: <index1>,<format>,<oper1>
[<CR><LF>+CPOL: <index2>,<format>,<oper2>[…]]
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OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CPOL=<ind
ex>[,<format>,<o
per>]
Parameters
<index> Integer type: order number of operator in SIM preferred
operator list
<format> Indicates whether alphanumeric or numeric
format used (see +COPS Command)
0 Long format alphanumeric <oper>
1 Short format alphanumeric <oper>
2 Numeric <oper>
<oper> String type(string should be included in quotation marks)
Max Response
Time
Immediately
Reference
3GPP TS 27.007
[13]
Note
3.2.45 AT+COPN Read Operator Names
AT+COPN Read Operator Names
Test Command
AT+COPN=?
Response
OK
Response
+COPN: <numeric1>,<alpha1>
[<CR><LF>+COPN: <numeric2>,<alpha2>
[…]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution
Command
AT+COPN
Parameters
<numericn> String type (string should be included in quotation marks):
operator in numeric format (see +COPS)
<alphan> String type (string should be included in quotation marks):
operator in long alphanumeric format (see +COPS)
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Max Response
Time
Immediately
Reference
3GPP TS 27.007
[13]
Note
3.2.46 AT+CFUN Set Phone Functionality
AT+CFUN Set Phone Functionality
Response
+CFUN: (list of supported <fun>s),(list of supported <rst>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CFUN=?
Parameters
See Write Command
Response
+CFUN: <fun>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CFUN?
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CFUN=<fun
>[,<rst>]
Parameters
<fun> 0 Minimum functionality
1 Full functionality (Default)
4 Disable phone both transmit and receive RF circuits.
<rst> 1 Reset the MT before setting it to <fun> power level.
Reference
3GPP TS 27.007
[13]
Note
Minimum functionality mode (AT+CFUN=0)and RF disabled
functionality mode (AT+CFUN=4) cannot be switched to each other.
The <fun> power level will be written to flash except minimum
functionality.
AT+CFUN=1,1 can be used to reset module purposely at minimum/full
functionality mode.
Response string "OK" will be returned after module resets if baud rate is
set to fixed baud rate.
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3.2.47 AT+CCLK Clock
AT+CCLK Clock
Test Command
AT+CCLK=?
Response
OK
Response
+CCLK: <time>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CCLK?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CCLK=<tim
e>
Parameter
<time> String type(string should be included in quotation marks)
value; format is "yy/MM/dd,hh:mm:ss±zz", where characters indicate
year (two last digits),month, day, hour, minutes, seconds and time zone
(indicates the difference, expressed in quarters of an hour, between the
local time and GMT; range -47...+48). E.g. 6th of May 2010, 00:01:52
GMT+2 hours equals to "10/05/06,00:01:52+08".
Parameter Saving
Mode
AUTO_SAVE
Reference
3GPP TS 27.007
[13]
Note
3.2.48 AT+CSIM Generic SIM Access
AT+CSIM Generic SIM Access
Test Command
AT+CSIM=?
Response
OK
Write Command
AT+CSIM=<leng
th>,<Command>
Response
+CSIM: <length>,<response>
OK
If error is related to ME functionality:
+CME ERROR: <err>
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Parameters
<length> Integer type: length of characters sent to the TE in
<Command> or <response> (i.e. twice the number of octets in the raw
data).
<Command> String type(string should be included in quotation
marks): hex format: GSM 11.11 SIM Command sent from the ME to the
SIM.
<response> String type(string should be included in quotation
marks): hex format: GSM 11.11 response from SIM to <Command>.
Reference
3GPP TS 27.007
[13]
Note
3.2.49 AT+CALM Alert Sound Mode
AT+CALM Alert Sound Mode
Response
+CALM: (list of supported <mode>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CALM=?
Parameter
See Write Command
Response
+CALM: <mode>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CALM?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CALM=<mo
de>
Parameter
<mode> 0 Normal mode
1 Silent mode (all sounds from ME are prevented)
Reference
3GPP TS 27.007
[13]
Note
If CALM is set to silent mode before, when user sets CALM to normal
mode during an incoming call, the module maintains silent this time. But
next time the normal mode works.
sl
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3.2.50 AT+CALS Alert Sound Select
AT+CALS Alert Sound Select
Response
+CALS: (list of supported <n>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CALS=?
Parameter
See Write Command
Response
+CALS: <n>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CALS?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CALS=<n>
Parameter
<n> 0-19 Alert sound type
Parameter Saving
Mode
AT&W_SAVE
Reference
Note
3.2.51 AT+CRSL Ringer Sound Level
AT+CRSL Ringer Sound Level
Response
+CRSL: (list of supported <level>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CRSL=?
Parameter
See Write Command
Read Command Response
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+CRSL: <level>
OK
If error is related to ME functionality:
+CME ERROR: <err>
AT+CRSL?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CRSL=<leve
l>
Parameter
<level> integer type value (0-100) with manufacturer specific range
Parameter Saving
Mode
AUTO_SAVE
Reference
3GPP TS 27.007
[13]
Note
3.2.52 AT+CLVL Loud Speaker Volume Level
AT+CLVL Loud Speaker Volume Level
Response
+CLVL: (list of supported <level>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CLVL=?
Parameter
See Write Command
Response
+CLVL: <level>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CLVL?
Parameter
See Write Command
Write Command
AT+CLVL=<leve
l>
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
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Parameter
<level> 0-100 Integer type value with manufacturer specific range
(smallest value represents the lowest sound level).
Parameter Saving
Mode
AUTO_SAVE
Reference
3GPP TS 27.007
[13]
Note
3.2.53 AT+CMUT Mute Control
AT+CMUT Mute Control
Response
+CMUT: (list of supported <n>s)
OK
Test Command
AT+CMUT=?
Parameter
See Write Command
Response
+CMUT: <n>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CMUT?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CMUT=<n>
Parameter
<n> 0 Mute off
1 Mute on
Reference
3GPP TS 27.007
[13]
Note
Only during a call this command can be set successfully.
3.2.54 AT+CPUC Price Per Unit and Currency Table
AT+CPUC Price Per Unit and Currency Table
Test Command
AT+CPUC=?
Response
OK
Read Command Response
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+CPUC: <currency>,<ppu>
OK
If error is related to ME functionality:
+CME ERROR: <err>
AT+CPUC?
Parameters
See Write Command
Response
OK
+CME ERROR: <err>
Write Command
AT+CPUC=<cur
rency>,<ppu>[,<
passwd>] Parameters
<currency> String type (string should be included in quotation marks);
three-character currency code (e.g. "GBP", "DEM");
character set as specified by Command Select TE
Character Set +CSCS
<ppu> String type (string should be included in quotation marks); price
per unit; dot is used as a decimal separator(e.g. "2.66")
<passwd> String type (string should be included in quotation marks);
SIM PIN2
Max Response
Time
5s
Reference
3GPP TS 27.007
[13]
Note
3.2.55 AT+CCWE Call Meter Maximum Event
AT+CCWE Call Meter Maximum Event
Response
+CCWE: (list of supported <mode>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CCWE=?
Parameter
See Write Command
Read Command
AT+CCWE?
Response
+CCWE: <mode>
OK
If error is related to ME functionality:
+CME ERROR: <err>
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Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<mode> 0 Disable call meter warning event
1 Enable call meter warning event
Write Command
AT+CCWE=<m
ode>
Unsolicited result codes supported:
+CCWV Shortly before the ACM (Accumulated Call Meter)
maximum value is reached, an unsolicited result code +CCWV will be
sent, if enabled by this command. The warning is issued approximately
when 5 seconds call time remains. It is also issued when starting a call if
less than 5 s call time remains.
Reference
3GPP TS 27.007
[13]
Note
3GPP TS 27.007 specifies 30 seconds, so SIMCom deviates from the
specification.
3.2.56 AT+CBC Battery Charge
AT+CBC Battery Charge
Response
+CBC: (list of supported <bcs>s),(list of supported <bcl>s),(<voltage>)
OK
Test Command
AT+CBC=?
Parameters
See Execution Command
Response
+CBC: <bcs>, <bcl>,<voltage>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution
Command
AT+CBC
Parameters
<bcs> Charge status
0 ME is not charging
1 ME is charging
2 Charging has finished
<bcl> Battery connection level
1...100 battery has 1-100 percent of capacity remaining
vent
<voltage> Battery voltage(mV)
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Reference
3GPP TS 27.007
[13]
Note
This command depends on hardware and only be used when battery is
charging.
3.2.57 AT+CUSD Unstructured Supplementary Service Data
AT+CUSD Unstructured Supplementary Service Data
Response
+CUSD: (list of supported <n>s)
OK
Test Command
AT+CUSD=?
Parameter
See Write Command
Response
+CUSD: <n>
OK
Read Command
AT+CUSD?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CUSD=<n>[,
<str>[,<dcs>]]
Parameters
<n> A numeric parameter which indicates control of the unstructured
supplementary service data
0 disable the result code presentation in the TE
1 enable the result code presentation in the TE
2 cancel session (not applicable to read Command response)
<str> String type (string should be included in quotation marks)
USSD-string
<dcs> Cell Broadcast Data Coding Scheme in integer format
(default 0)
Reference
GSM 03.38 [25]
Note
3.2.58 AT+CSSN Supplementary Services Notification
AT+CSSN Supplementary Services Notification
Response
+CSSN: (list of supported <n>s),(list of supported <m>s)
OK
Test Command
AT+CSSN=?
Parameters
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