Document Outline

• Contents
• Version History
• Introduction
  • Scope of the document
  • Supported product versions and related documents
  • Conventions
  • Supported character sets
  • AT command syntax
    • Using parameters
    • Combining AT commands on the same command line
    • Entering successive AT commands on separate lines
• Standard V.25ter AT Commands
  • A/ Repeat previous command line
  • +++ Switch from data mode to command mode
  • AT\Qn Flowcontrol
  • ATA Answer a call
  • ATD Mobile originated call to dial a number
  • ATD><mem><n> Originate call to phone number <n> in memory <mem>
  • ATD><n> Originate call to phone number selected from active memory
  • ATD><str> Originate call to phone number in memory with corresponding field
  • ATE Enable command echo
  • ATH Disconnect existing connection
  • ATI Display product identification information
  • ATI[value] Display additional identification information
  • ATL Set monitor speaker loudness
  • ATM Set monitor speaker mode
  • ATO Switch from command mode to data mode
  • ATQ Set result code presentation mode
  • ATP Select pulse dialling
  • ATS0 Set number of rings before automatically answering the call
  • ATS3 Write command line termination character
  • ATS4 Set response formatting character
  • ATS5 Write command line editing character
  • ATS6 Set 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
  • ATS10 Set disconnect delay after indicating the absence of data carrier
  • ATS18 Extended error report
  • ATT Select tone dialling
  • ATV Set result code format mode
  • ATX Set CONNECT result code format and call monitoring
  • ATZ Set all current parameters to user defined profile
  • AT&C Set circuit Data Carrier Detect (DCD) function mode
  • AT&D Set circuit Data Terminal Ready (DTR) function mode
  • AT&F Set all current parameters to manufacturer defaults
  • AT&S Set circuit Data Set Ready (DSR) function mode
  • AT&V Display current configuration
  • AT&W Store current configuration to user defined 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 status
  • AT+GSN Request TA serial number identification(IMEI)
  • AT+ILRR Set TE-TA local rate reporting
  • AT+IPR Set fixed local rate
    • Autobauding
• AT Commands for FAX
  • AT+FBADLIN Bad Line Treshold
  • AT+FBADMUL Error Threshold Multiplier
  • AT+FBOR Query data bit order
  • AT+FCIG Query or set the Local polling id
  • AT+FCLASS Fax: Select, read or test service class
  • AT+FCQ Copy Quality Checking
  • AT+FCR Capability to receive
  • AT+FDCC Query or set capabilities
  • AT+FDFFC Data Compression Format Conversion
  • AT+FDIS Query or set session parameters
  • AT+FDR Begin or continue phase C data reception
  • AT+FDT Data Transmission
  • AT+FET End a page or document
  • AT+FK Kill operation, orderly FAX abort
  • AT+FLID Query or set the Local Id setting capabilities
  • AT+FMDL identify Product Model
  • AT+FMFR Request Manufacturer Identification
  • AT+FOPT Set bit order independently
  • AT+FPHCTO DTE Phase C Response Timeout
  • AT+FREV Identify Product Revision
  • AT+FRH Receive Data Using HDLC Framing
  • AT+FRM Receive Data
  • AT+FRS Receive Silence
  • AT+FTH Transmit Data Using HDLC Framing
  • AT+FTM Transmit Data
  • AT+FTS Stop Transmission and Wait
  • AT+FVRFC Vertical resolution format conversion
• AT Commands originating from GSM 07.07
  • AT+CACM Accumulated call meter (ACM) reset or query
  • AT+CALA Set alarm time
  • AT+CAMM Accumulated call meter maximum (ACMmax) set or query
  • AT+CAOC Advice of Charge information
  • AT+CBST Select bearer service type
  • AT+CCFC Call forwarding number and conditions control
    • Examples: Call forwarding
  • AT+CCLK Real Time Clock
  • AT+CEER Extended error report
  • AT+CFUN Set phone functionality
  • AT+CGMI Request manufacturer identification
  • AT+CGMM Request model identification
  • AT+CGMR Request revision identification of software status
  • AT+CGSN Request product serial number identification (IMEI) identical to GSN
  • AT+CHLD Call hold and multiparty
  • AT+CHUP Hang up call
  • AT+CIMI Request international mobile subscriber identity
  • AT+CLCC List current calls of ME
  • AT+CLCK Facility lock
    • Examples: Enabling / disabling PIN 1 authentication
    • Examples: Call barring
  • AT+CLIP Calling line identification presentation
  • AT+CLIR Calling line identification restriction (by *# sequence)
  • AT+CLVL Loudspeaker volume level
  • AT+CMEE Report mobile equipment error
  • AT+CMUT Mute control
  • AT+CMUX Enter multiplex mode
    • Restricted use of AT commands in Multiplex mode
  • AT+COPN Read operator names
  • AT+COPS Operator selection
  • AT+CPAS Mobile equipment activity status
  • AT+CPBR Read current phonebook entries
  • AT+CPBS Select phonebook memory storage
  • AT+CPBW Write phonebook entry
  • AT+CPIN Enter PIN
    • What to do if PIN or password authentication fails?
  • AT+CPIN2 Enter PIN2
  • AT+CPUC Price per unit and currency table
  • AT+CPWD Change password
  • AT+CR Service reporting control
  • AT+CRC Set Cellular Result Codes for incoming call indication
  • AT+CREG Network registration
  • AT+CRLP Select radio link protocol param. for orig. non-transparent data call
  • AT+CRSM Restricted SIM access
  • AT+CSCS Set TE character set
  • AT+CSNS Single Numbering Scheme
  • AT+CSQ Signal quality
  • AT+CSSN Supplementary service notifications
  • AT+CUSD Unstructured supplementary service data
  • AT+VTD=<n> Tone duration
  • AT+VTS DTMF and tone generation (<Tone> in {0-9, *, #, A, B, C, D})
  • AT+WS46 Select wireless network
• AT commands originating from GSM 07.05 for SMS
  • AT+CMGC Send an SMS command
  • AT+CMGD Delete SMS message
  • AT+CMGF Select SMS message format
  • AT+CMGL List SMS messages from preferred store
  • AT+CMGR Read SMS message
  • AT+CMGS Send SMS message
  • AT+CMGW Write SMS message to memory
  • AT+CMSS Send SMS message from storage
  • AT+CNMA New SMS message acknowledge to ME/TE, only phase 2+
  • AT+CNMI New SMS message indications
  • AT+CPMS Preferred SMS message storage
  • AT+CSCA SMS service centre address
  • AT+CSCB Select cell broadcast messages
  • AT+CSDH Show SMS text mode parameters
  • AT+CSMP Set SMS text mode parameters
  • AT+CSMS Select Message Service
• GPRS AT commands in accordance with GSM 07.07
  • Commands specific to MTs supporting GPRS
    • AT+CGATT GPRS attach and detach
    • AT+CGACT PDP context activate or deactivate
    • AT+CGDATA Enter data state
    • AT+CGDCONT Define PDP Context
    • AT+CGQMIN Quality of Service Profile (Minimum acceptable)
    • AT+CGQREQ Quality of Service Profile (Requested)
    • AT+CGSMS Select service for MO SMS messages
    • AT^SGAUTH Set type of authentication for PPP connection
  • Modem compatibility commands to MTs supporting GPRS
  • ATD *99# Request GPRS service
    • ATD *98# Request GPRS IP service
    • ATH Manual rejection of a network request for PDP context activation
  • Using GPRS AT commands (examples)
    • Miscellaneous AT commands
  • Using the GPRS dial command ATD
• AT Commands for SIM Application Toolkit (GSM 11.14)
  • AT^SSTA Remote-SAT Interface Activation
  • ^SSTN Remote-SAT Notification
  • AT^SSTGI Remote-SAT Get Information
  • AT^SSTR Remote-SAT Response
• Siemens defined AT commands for enhanced functions
  • AT+CXXCID Display card ID (identical to AT^SCID)
  • AT^MONI Monitor idle mode and dedicated mode
  • AT^MONP Monitor neighbour cells
  • AT^SACM Advice of charge and query of ACM and ACMmax
  • AT^SBC Battery charging / discharging and charge control
  • AT^SCID Display SIM card identification number
  • AT^SCKS Set SIM connection presentation mode and query SIM connection status
  • AT^SCNI List Call Number Information
  • AT^SCTM Set critical operating temperature presentation mode or query temperature
  • AT^SDLD Delete the “last number redial“ memory
  • AT^SHOM Display Homezone
  • AT^SLCD Display Last Call Duration
  • AT^SLCK Facility lock
  • AT^SMGL List SMS messages from preferred storage
  • AT^SMGO Set or query SMS overflow presentation mode or query SMS overflow
  • AT^SMSO Switch off mobile station
  • AT^SMGR Read SMS message without set to REC READ
  • AT^SM20 Set M20 Compatibility
  • AT^SNFD Set audio parameters to manufacturer default values
  • AT^SNFI Set microphone path parameters
  • AT^SNFM Mute microphone
  • Audio programming model
  • AT^SNFO Set audio output (= loudspeaker path) parameter
  • AT^SNFS Select audio hardware set
  • AT^SNFV Set loudspeaker volume
  • AT^SNFW Write audio setting in non-volatile store
  • AT^SPBC Search the first entry in the sorted telephone book
  • AT^SPBG Read entry from active telephone book via sorted index
  • AT^SPBS Steps the selected phonebook alphabetically
  • AT^SPIC Display PIN counter
  • AT^SPLM Read the PLMN list
  • AT^SPLR Read entry from the preferred operators list
  • AT^SPLW Write an entry to the preferred operators list
  • AT^SPWD Change password for a lock
  • AT^SSYNC Configure SYNC Pin
  • AT^STCD Display Total Call Duration
• APPENDIX
  • Summary of ERRORS and Messages
    • Summary of CME ERRORS related to GSM 07.07
    • Summary of GPRS-related CME ERRORS
    • Summary of CMS ERRORS related to GSM 07.05
  • Summary of PIN requiring AT Commands
  • AT commands available before entering the SIM PIN
  • Standard GSM service codes
    • Additional notes on ^SCCFC, ^SCCWA, ^SCLCK
  • Alphabet tables