Chapter 1 Introduction.................................................................................................. 1-1
Scope of the Document............................................................................................................ 1-2
Related Documents.................................................................................................................. 1-2
ETSI Secretariat....................................................................................................................... 1-2
Abbreviations........................................................................................................................... 1-3
Definitions............................................................................................................................... 1-4
Presentation Rules....................................................................................................................1-4
Chapter 2 AT Command Features................................................................................2-1
Serial Line Settings.................................................................................................................. 2-2
Command Line........................................................................................................................ 2-2
Information Response and Result Codes................................................................................. 2-2
Chapter 3 General Commands..................................................................................... 3-1
Manufacturer Identification: +CGMI.......................................................................................3-2
Request Model Identification: +CGMM.................................................................................. 3-2
Request Revision Identification: +CGMR............................................................................... 3-3
Product Serial Number: +CGSN..............................................................................................3-3
Select TE Character Set: +CSCS............................................................................................. 3-3
Phonebook Character Set: +WPCS..........................................................................................3-4
Request IMSI: +CIMI.............................................................................................................. 3-4
Card Identification: +CCID..................................................................................................... 3-4
Capabilities List: +GCAP........................................................................................................3-5
Repeat Last Command: A/....................................................................................................... 3-5
Power Off: +CPOF.................................................................................................................. 3-5
Set Phone Functionality: +CFUN............................................................................................ 3-5
Phone Activity Status: +CPAS................................................................................................. 3-6
Report Mobile Equipment Errors: +CMEE............................................................................. 3-7
Keypad Control: +CKPD......................................................................................................... 3-7
Clock Management: +CCLK................................................................................................... 3-7
Alarm Management: +CALA.................................................................................................. 3-8
Generic SIM Access: +CSIM...................................................................................................3-8
Restricted SIM Access: +CRSM............................................................................................3-10
Mobile Equipment Control Mode: +CMEC...........................................................................3-11
Indicator Control: +CIND.......................................................................................................3-11
Multiplexing Mode: +CMUX................................................................................................ 3-12
Chapter 4 Call Control Commands.............................................................................. 4-1
Dial Command: D.................................................................................................................... 4-2
Hang-Up Command: H............................................................................................................ 4-3
Answer a Call: A......................................................................................................................4-4
Remote Disconnection............................................................................................................. 4-4
Extended Error Report: +CEER...............................................................................................4-4
DTMF Signals: +VTD, +VTS................................................................................................. 4-5
Redial Last Telephone Number: ATDL....................................................................................4-5
Automatic Dialing with DTR: AT%Dn....................................................................................4-6
Automatic Answer: ATS0........................................................................................................ 4-7
Incoming Call Bearer: +CICB................................................................................................. 4-7
Single Numbering Scheme: +CSNS........................................................................................ 4-8
Gain Control: +VGR, +VGT................................................................................................... 4-8