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AT command Interface Specification
Version : 2.23
Date : 2004-1-20
CDMA 800
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Contents
1. GENERAL COMM8
1.1. REQUEST REVISION IDENTIFICATION +CGMR.......................................................................................8 1.2. PRODUCT SERIAL NUMBER +CGSN........................................................................................................8 1.3. SELECT TE CHARACTER SET +CSCS : NOT SUPPORT.......................................................................8 1.4. REQUEST IMSI +C8
1.5. CAPABILITIES LIST +GCAP......................................................................................................................8 1.6. REPEAT LAST COMMAND A/......................................................................................................................9 1.7. PHONE OFFLINE +CPOF...........................................................................................................................9 1.8. SET PHONE FUNCTIONALITY +CFUN.......................................................................................................9 1.9. PHONE ACTIVITY STATUS +CPAS.............................................................................................................9 1.10. REPORT MOBILE EQUIPMENT ERRORS +CMEE.................................................................................10 1.11. KEYPAD CONTROL +CKPD...................................................................................................................10 1.12. CLOCK MANAGEMENT +CCLK...........................................................................................................10 1.13. RING MELODY PLAYBACK +CRMP.....................................................................................................11 1.14. RINGER SOUND LEVEL +CRSL............................................................................................................12 1.15. SUBSCRIBER NUMBER +CNUM............................................................................................................12 1.16. SELECT TYPE OF ADDRESS +CSTA......................................................................................................12 1.17. VIEW MODULE TIMERS +WTMR........................................................................................................13 2. CALL CONTROL COMMANDS.............................................................................................................13 2.1. DIAL COMMAND D...13
2.2. HANG-UP COMMAND H...........................................................................................................................15 2.3. ANSWER A CALL A...15
2.4. REMOTE DISC_E.......15
2.5. EXTENDED ERROR REPORT +CEER.......................................................................................................16 2.6. DTMF SIGNALS +VTD, +VTS................................................................................................................16 2.7. DTMF START AND STOP CONTINUOUS +WSDT, +WSDS................................................................17 2.8. REDIAL LAST TELEPHONE NUMBER ATDL............................................................................................17 2.9. AUTOMATIC ANSWER ATS0....................................................................................................................18 2.10. INCOMING CALL BEARER +CICB........................................................................................................18 2.11. SINGLE NUMBERING SCHEME +CSNS.................................................................................................18 2.12. MICROPHONE GAIN +VGT...................................................................................................................19 2.13. VOLUME GAIN CONTROL +VGR..........................................................................................................20 2.14. MICROPHONE MUTE CONTROL +CMUT............................................................................................20 2.15. SPEAKER & MICROPHONE SELECTION +SPEAKER..........................................................................21 2.16. ECHO CANCELLATION +ECHO............................................................................................................21 2.17. SIDE TONE MODIFICATION +SIDET.....................................................................................................22 2.18. INITIALIZE VOICE PARAMETERS +VIP................................................................................................22 2.19. CALL FORWARDING SERVICE CODE SET +CCFSC.............................................................................22 2.20. CALL WAITING SERVICE CODE SET +CCWCS...................................................................................23 2.21. CLI RESTRICTION CODE SET +CCLIRS.............................................................................................23 2.22. CALL FORWARDING MODE SET +CCFMS...........................................................................................24 2.23. CALL WAITING MODE SET +CCWS.....................................................................................................24 3. NETWORK SERVICE COMMANDS.....................................................................................................25 3.1. SIGNAL QUALITY +CSQ..........................................................................................................................25
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第3页共150页 3.2. MODE PREFERENCE +COPS..................................................................................................................25 3.3. ROAM PREFERENCE +WRMP................................................................................................................26 3.4. NETWORK REGISTRATION & ROAMING +CREG..................................................................................27 3.5. CHANGE NAM SELECTION +WNAM....................................................................................................28 3.6. READ CURRENT NAM +WCNM............................................................................................................28 4. SECURITY C29 4.1. ENTER PIN +CPIN..29
4.2. ENTER PIN2 +CPI29
4.3. PIN REMAINING ATTEMPT NUMBER +CPINC......................................................................................30 4.4. FACILITY LOCK +CLCK.........................................................................................................................30 4.5. CHANGE PASSWORD +CPWD.................................................................................................................31 5. SHORT MESSAGES COMMANDS.........................................................................................................31 5.1. PARAMETERS D_RAMETERS31
5.2. PREFERRED MESSAGE STORAGE +CPMS.............................................................................................32 5.3. NEW MESSAGE INDICATION +CNMI......................................................................................................33 5.4. READ MESSAGE +CMGR........................................................................................................................34 5.5. LIST MESSAGE +CMGL..........................................................................................................................35 5.6. SEND MESSAGE +CMGS.........................................................................................................................36 5.7. DELETE MESSAGE +CMGD....................................................................................................................37 5.8. SET SMS COMPOSE LANGUAGE AND ENCODING +WSCL.....................................................................38 5.9. WRITE MESSAGE TO MEMORY +CMGW...............................................................................39 5.10. SEND MESSAGE FROM STORAGE +CMSS...........................................................................................40 6. SUPPLEMENTARY SERVICES COMMANDS.....................................................................................40 6.1. CALL FORWARDING +CCFC...................................................................................................................40 6.2. (RESERVED)..............41
6.3. CALLING LINE IDENTIFICATION RESTRICTION +CLIR.........................................................................41 6.4. CALLING LINE IDENTIFICATION PRESENTATION +CLIP.......................................................................41 6.5. SEND FLASH TO BASE STATION +WFSH................................................................................................42 6.6. LIST CURRENT CALL STATE +CLCC.......................................................................................................43 7. DATA COMMANDS...44
7.1. SELECT MODE +FCLASS........................................................................................................................44 7.2. CELLULAR RESULT CODES +CRC..........................................................................................................44 7.3. V42 BIS DATA COMPRESSION +DS...........................................................................................................45 7.4. V42 BIS DATA COMPRESSION REPORT +DR............................................................................................45 8. V24-V25 COMMAN46
8.1. FIXED DTE RATE +IPR...........................................................................................................................46 8.2. DTE-DCE CHARACTER FRAMING +ICF................................................................................................46 8.3. DTE-DCE LOCAL FLOW CONTROL +IFC..............................................................................................47 8.4. SET DCD SIGNAL &C..............................................................................................................................47 8.5. SET DTR SIGNAL &D..............................................................................................................................47 8.6. BACK TO ONLINE MODE O......................................................................................................................48
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第4页共150页 8.7. RESULT CODE SUPPRESSION Q................................................................................................................48 8.8. DCE RESPONSE FORMAT V.....................................................................................................................48 8.9. ECHO E.....................49
8.10. DISPLAY CONFIGURATION &V..............................................................................................................49 8.11. RESTORE FACTORY SETTING &F.........................................................................................................49 8.12. SAVE CONFIGURATION &W..................................................................................................................50 9. PHONE BOOK COMMANDS..................................................................................................................50 9.1. SELECT PHONE BOOK MEMORY STORAGE +CPBS................................................................................50 9.2. RETURN SELECTED PHONEBOOK LOCATIONS +CPBU..........................................................................50 9.3. FIND PHONEBOOK ENTRIES +CPBF.......................................................................................................51 9.4. WRITE PHONEBOOK ENTRY +CPBW.....................................................................................................51 9.5. PHONEBOOK READ +CPBR.....................................................................................................................52 9.6. PHONEBOOK SEARCH +CPBP.................................................................................................................52 9.7. AVOID PHONEBOOK INIT +WAIP............................................................................................................53 9.8. DELETE CALLS FROM PHONEBOOK +WDCP.........................................................................................53 10. POSITION DETERMINATION (GPS) AT COMMANDS...................................................................53 10.1. POSITION DETERMINATION SESSION TYPE +WPDST........................................................................54 10.2. POSITION DETERMINATION OPERATING MODE +WPDOM...............................................................54 10.3. POSITION DETERMINATION DATA DOWNLOAD +WPDDD.................................................................54 10.4. POSITION DETERMINATION FIX RATE +WPDFR................................................................................55 10.5. POSITION DETERMINATION PRIVACY LEVEL +WPDPL.....................................................................55 10.6. POSITION DETERMINATION START SESSION +WPDSS.......................................................................55 10.7. POSITION DETERMINATION END SESSION +WPDES..........................................................................56 10.8. POSITION DETERMINATION START SESSION RESULT +WPDSS.........................................................56 10.9. PACKET DIAL STRING +GPDS..............................................................................................................57 10.10. PPP AUTHENTICATION PROTOCOL ID +GPAPID.............................................................................58 10.11. PPP AUTHENTICATION PROTOCOL PASSWORD +GPAPPWD..........................................................58 10.12. MPC SERVER IP +GMPCIP...............................................................................................................58 10.13. MPC SERVER PORT +GMPCPORT..................................................................................................58 10.14. OPEN NETWORK LIBRARY +GNETLIB.............................................................................................59 10.15. MAKE PPP DATA CALL +GPPP...........................................................................................................59 10.16. CREATE TCP SOCKET FOR CONNECTION TO MPC +GSOCK.........................................................60 10.17. CONNECTION TO MPC +GCONN......................................................................................................60 10.18. PDE SERVER IP +GPDEIP.................................................................................................................61 10.19. PDE SERVER PORT +GPDEPORT.....................................................................................................61 10.20. NMEA-0183 MESSAGE SUPPORT +GNMEA0183.............................................................................62 10.21. EXAMPLE..............62
11. SIMPLESOCKET INTERFACE AT COMMANDS.............................................................................63 11.1. SIMPLESOCKET SERVER IP +GSIP......................................................................................................63 11.2. SIMPLESOCKET SERVER PORT +GSPORT..........................................................................................63 11.3. CREATE TCP SOCKET FOR CONNECTION TO SIMPLESOCKET SERVER +GSSOCK.........................63 11.4. CONNECTION TO SIMPLESOCKET SERVER +GSCONN......................................................................64 11.5. WRITE DATA TO SIMPLESOCKET +GSWRITE....................................................................................64 11.6. READ DATA FROM SIMPLESOCKET +GSREAD...................................................................................65 11.7. EXAMPLE................65
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第5页共150页 12. SPECIFIC AT COMMANDS..................................................................................................................66 12.1. MANUFACTURER IDENTIFICATION +WGMI........................................................................................66 12.2. REQUEST MODEL IDENTIFICATION +WGMM.....................................................................................66 12.3. CELL ENVIRONMENT DESCRIPTION +CCED.......................................................................................66 12.4. AUTOMATIC RXLEV INDICATION +CCED...........................................................................................67 12.5. GENERAL INDICATIONS +WIND...........................................................................................................68 12.6. ANALOG DIGITAL CONVERTERS MEASUREMENTS +ADC...................................................................69 12.7. MOBILE EQUIPMENT EVENT REPORTING +CMER.............................................................................69 12.8. READ GPIO VALUE +WIOR.................................................................................................................69 12.9. WRITE GPIO VALUE +WIOW..............................................................................................................70 12.10. PLAY TONE +WTONE.........................................................................................................................70 12.11. PLAY DTMF TONE +WDTMF............................................................................................................71 12.12. HARDWARE VERSION +WHWV.........................................................................................................71 12.13. MODULE SELECT VOICE GAIN +WSVG.................................................................................................72 12.14. MODULE STATUS REQUEST +WSTR.......................................................................................................72 12.15. MODULE RING INDICATOR MODE +WRIM...........................................................................................73 12.16. MODULE 32KHZ SLEEP MODE +W32K..................................................................................................73 12.17. MODULE CHANGE DEFAULT MELODY +WCDM...................................................................................74 12.18. MODULE SOFTWARE VERSION +WSSW.................................................................................................74 12.19. MODULE CUSTOM CHARACTER SET +WCCS : NOT SUPPORT........................................................75 12.20. MODULE CHANGE DEFAULT PLAYER +WCDP......................................................................................75 12.21. MODULE RESET +WRST.........................................................................................................................75 12.22. SET STANDARD TONE +WSST............................................................................................................76 12.23. SET VOICE PRIVACY LEVEL +WPRV..................................................................................................76 12.24. SECURITY PIN +WPIN.......................................................................................................................77 12.25. REQUEST PRL VERSION INFORMATION +WPRL..............................................................................77 12.26. VIBRATOR ON/OFF +VIBR.................................................................................................................78 12.27. SET ALERT TYPE +SALT.....................................................................................................................78 13. SIM TOOLKIT.........79
13.1. OVERVIEW OF SIM APPLICATION TOOLKIT.......................................................................................79 13.2. SIM TOOLKIT SET FACILITIES (+STSF).............................................................................................80 13.3. SIM TOOLKIT INDICATION (+STIN)...................................................................................................81 13.4. SIM TOOLKIT GET INFORMATION (+STGI).......................................................................................82 13.5. UNSOLICITED RESULT : SIM TOOLKIT CONTROL RESPONSE (+STCR)..........................................86 13.6. SIM TOOLKIT GIVE RESPONSE (+STGR)...........................................................................................86 14. PROVISIONING AT COMMANDS.......................................................................................................89 14.1. SERVICE PROGRAMMING CODE +WSPC.............................................................................................89 14.2. MOBILE DIRECTORY NUMBER +WMDN.............................................................................................89 14.3. SET IMSI_M +90
14.4. SID AND NID +90
14.5. ACCESS OVERLOAD CLASS +WAOC...................................................................................................90 14.6. SLOT CYCLE INDEX +WSCI.................................................................................................................90 14.7. PACKET DIAL STRING +WPDS.............................................................................................................91 14.8. PRIMARY CDMA CHANNELS +WPCC.................................................................................................91 14.9. SECONDARY CDMA CHANNELS +WSCC............................................................................................91 14.10. SERVICE OPTION MANAGEMENT +WSOM.......................................................................................91 14.11. COMMIT CHANGES +WCMT..............................................................................................................92
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第6页共150页 14.12. SERVICE PROGRAMMING EXAMPLE...................................................................................................92 15. EXTENDED AT COMMANDS IN IS707.3............................................................................................93 15.1. REMOTE ASYNC/FAX COMMAND X......................................................................................................93 15.2. RESET TO DEFAULT CONFIGURATION Z0.............................................................................................93 15.3. SELECT TONE DIALING T.......................................................................................................................94 15.4. SELECT PULSE DIALING P......................................................................................................................94 15.5. BASIC S-REGISTERS ATS<X>...............................................................................................................94 15.6. ERROR CONTROL OPERATION +EB......................................................................................................95 15.7. NUMERIC PARAMETER CONTROL +EFCS............................................................................................95 15.8. ERROR CONTROL REPORT +ER............................................................................................................96 15.9. ERROR CONTROL SELECTION +ES.......................................................................................................96 15.10. ERROR CONTROL SELECTION +ESR..................................................................................................97 15.11. ERROR CONTROL SELECTION +ETBM..............................................................................................97 15.12. REQUEST MANUFACTURE IDENTIFICATION +GMI............................................................................98 15.13. REQUEST MANUFACTURE IDENTIFICATION +GMM..........................................................................98 15.14. REQUEST REVISION IDENTIFICATION +GMR....................................................................................98 15.15. REQUEST PRODUCT SERIAL NUMBER IDENTIFICATION +GSN..........................................................99 15.16. REQUEST GLOBAL OBJECT IDENTIFICATION +GOI...........................................................................99 15.17. MODULATION SELECTION +MS..........................................................................................................99 15.18. MODULATION AUTOMODE CONTROL +MA......................................................................................100 15.19. MODULATION REPORTING CONTROL +MR......................................................................................100 15.20. V.18 REPORTING CONTROL +MV18R...............................................................................................100 15.21. V.18 SELECTION +MV18S.................................................................................................................101 15.22. CELLULAR EXTENSION +CXT..........................................................................................................101 15.23. CONFIGURATION STRING +CFG.......................................................................................................102 15.24. QUERY SERVICE +CAD ?..................................................................................................................102 15.25. UM INTERFACE DATA COMPRESSION REPORTING +CDR................................................................103 15.26. UM INTERFACE DATA COMPRESSION +CDS.....................................................................................103 15.27. SET RM INTERFACE PROTOCOL +CRM...........................................................................................103 15.28. BATTERY CHARGE +CBC ?..............................................................................................................104 15.29. COMMAND STATE INACTIVITY TIMER +CQD.................................................................................104 15.30. MOBILE STATION IP ADDRESS +CMIP?..........................................................................................105 15.31. BASE STATION IP ADDRESS +CBIP ?...............................................................................................105 15.32. SERVING SYSTEM +CSS ?.................................................................................................................105 15.33. SELECT MULTIPLEX OPTION +CMUX............................................................................................106 15.34. UM INTERFACE FAX COMPRESSION +CFC......................................................................................106 15.35. HANG-UP VOICE +CHV.....................................................................................................................106 15.36. DIAL COMMAND FOR VOICE CALLS +CDV......................................................................................107 15.37. UM PACKET DATA INACTIVITY TIMER +CTA...................................................................................107 16. QUALCOMM DEFINED AT COMMANDS FOR CDMA OPERATION........................................107 16.1. TRANSITION TO DIAGNOSTICS MONITOR $QCDMG.......................................................................107 16.2. QUICK NET CONNECT $QCQNC........................................................................................................108 16.3. PROTOCOL REVISION IN USE $QCPREV...........................................................................................108 16.4. DUMP RLP PROTOCOL STATISTICS $QCRLPD.................................................................................109 16.5. RESET RLP PROTOCOL STATISTICS $QCRLPR................................................................................109 16.6. DUMP PPP PROTOCOL STATISTICS $QCPPPD..................................................................................109 16.7. RESET PPP PROTOCOL STATISTICS $QCPPPR.................................................................................110 16.8. DUMP IP PROTOCOL STATISTICS $QCIPD.........................................................................................110 16.9. RESET IP PROTOCOL STATISTICS $QCIPR........................................................................................110
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第7页共150页 16.10. DUMP UDP PROTOCOL STATISTICS $QCUDPD...............................................................................110 16.11. RESET UDP PROTOCOL STATISTICS $QCUDPR..............................................................................111 16.12. DUMP TCP PROTOCOL STATISTICS $QCTCPD...............................................................................111 16.13. RESET TCP PROTOCOL STATISTICS $QCTCPR..............................................................................111 16.14. SET DATA SERVICE OPTION $QCSO.................................................................................................112 16.15. CLEAR MOBILE ERROR LOG $QCCLR............................................................................................112 16.16. ANSWER INCOMING VOICE CALL $QCCAV.....................................................................................112 16.17. AUTOMATIC PACKET DETECTION $QCPKND.................................................................................113 16.18. PREARRANGEMENT SETTING $QCVAD...........................................................................................113 16.19. SET DM BAUD RATE $QCDMR........................................................................................................114 16.20. SET MEDIUM DATA RATE $QCMDR.................................................................................................114 16.21. DUMP RLP 3 PROTOCOL STATISTICS $QCRL3D.............................................................................115 16.22. RESET RLP 3 PROTOCOL STATISTICS $QCRL3R...........................................................................115 16.23. SCRM’ING SELECTION $QCSCRM.................................................................................................115 16.24. R-SCH SELECTION $QCTRTL........................................................................................................116 17. UNSOLICITED AT RESULT CODES.................................................................................................116 17.1. CELL ENVIRONMENT DESCRIPTION INDICATION +CCED...............................................................116 17.2. CALL WAITING INDICATION +CCWA................................................................................................116 17.3. KEY PRESS OR RELEASE +CKEV.......................................................................................................117 17.4. CALLER ID PRESENTATION +CLIP....................................................................................................117 17.5. INCOMING MESSAGE DIRECTLY DISPLAYED +CMT.........................................................................117 17.6. INCOMING MESSAGE STORED IN MEMORY +CMTI.........................................................................117 17.7. MODE PREFERENCE +COPS..............................................................................................................118 17.8. REGISTRATION & ROAMING +CREG................................................................................................118 17.9. INCOMING CALL +CRING..................................................................................................................118 17.10. AUTOMATIC RXLEV INDICATION +CSQ..........................................................................................119 17.11. INCOMING CALL RING.....................................................................................................................119 17.12. CALL ANSWERED +WANS................................................................................................................119 17.13. CALL CONNECTED +WCNT.............................................................................................................120 17.14. CALL ENDED +WEND.......................................................................................................................120 17.15. FEATURE NOTIFICATION MESSAGE +WFNM.................................................................................121 17.16. MODULE GENERAL INDICATOR +WIND..............................................................................................121 17.17. CALL ORIGINATED +WORG............................................................................................................121 17.18. CALL PRIVACY INDICATION +WPRV...............................................................................................121 17.19. ROAMING INDICATION +WROM......................................................................................................122 17.20. CURRENT NAM CHANGE +WNAM.................................................................................................122 17.21. MODULE VOICE MAIL INDICATOR +WVMI.........................................................................................122 17.22. SMS MESSAGE STORAGE FULL +WMGF.......................................................................................123 17.23. SMS STATUS REPORT INDICATION DIRECT DISPLAYED +CDS......................................................123 18. APPENDICES.........123
18.1. MS ERROR RESULT CODE : +CME ERROR: <ERROR>...................................................................123 18.2. MESSAGE SERVICE FAILURE RESULT CODE: +CMS ERROR : <ERROR>......................................124 18.3. EXTENDED ERROR REPORT (+CEER) CALL PROCESSING CODES..................................................124 18.4. PARAMETERS STORAGE......................................................................................................................125
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1. GENERAL COMMANDS
1.1. Request revision identification +CGMR
1.1.1. Description:
This command is used to get the revised software version.
1.1.2. Syntax:
AT+CGMR
Command Possible responses AT+CGMR +CGMR: S/W VER: 58.00.00.03
Note: Get software version Jun 30 2003
OK
Note: Software Version
58.00.00.03, generated on the June
30th , 2003
1.2. Product Serial Number +CGSN
1.2.1. Description:
This command allows the user application to get the ESN of the product. 1.2.2. Syntax:
AT+CGSN
Command Possible responses AT+CGSN +CGSN: FE7A7704 Note: Get the ESN OK
Note: ESN read from NV
1.3. Select TE character set +CSCS : NOT SUPPORT
1.3.1. Description:
NOT SUPPORT
1.4. Request IMSI +CIMI
1.4.1. Description:
This command is used to read and identify the IMSI (International Mobile Subscriber Identity) of
the SIM card. The PIN may need to be entered before reading the IMSI. 1.4.2. Syntax:
AT+CIMI
Command Possible responses AT+CIMI +CIMI: Note: Read the IMSI 310008585551212
OK
Note: IMSI value (15 digits)
1.5. Capabilities list +GCAP
1.5.1. Description:
This command gets the complete list of capabilities.
1.5.2. Syntax:
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AT+GCAP
Command Possible responses AT+GCAP +GCAP: +CIS707-A, +MS, Note: Get capabilities list +ES, +DS, +FCLASS
OK
1.6. Repeat last command A/
1.6.1. Description
This command repeats the previous command. Only the A/ command itself cannot be repeated. 1.6.2. Syntax:
A/
Command Possible responses
A/
Note: Repeat last command
1.7. Phone Offline +CPOF
1.7.1. Description:
This specific command sends all CDMA software stack tasks offline. AT command can still be
received, however, there is no RF functionality. The AT+CFUN=0 command is equivalent to
+CPOF.
1.7.2. Syntax:
AT+CPOF
Command Possible responses
AT+CPOF +CPOF:
Note: Stop CDMA stack OK
Note: Command valid
1.8. Set phone functionality +CFUN
1.8.1. Description:
This command selects the mobile station’s level of functionality.
AT+CFUN=0 is equivalent to AT+CPOF
The AT+CFUN=1 (by default, AT+CFUN will act the same as AT+CFUN=1) command restarts the
entire CDMA stack and CDMA functionality: a complete software reset is performed. In addition,
the OK response will be sent at the last baud rate defined by the +IPR command. 1.8.2. Syntax:
AT+CFUN=<functionality level>
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Command Possible responses AT+CFUN? +CFUN: 1 Note: Ask for current functionality level OK
Note: Full functionality AT+CFUN=0 OK
Note: Set phone offline Note: Command valid
Note: Command valid AT+CFUN=1
Note: Perform software reset
1.9. Phone activity status +CPAS
1.9.1. Description:
This command returns the activity status of the mobile equipment.
1.9.2. Syntax:
AT+CPAS
Command Possible responses AT+CPAS +CPAS: <pas> Note: Current activity status OK
1.9.3. Defined values :
<pas>
0: ready (allow commands from TA/TE)
1: unavailable (does not allow commands)
2: unknown
3: ringing (ringer is active)
4: call in progress
5: asleep (low functionality)
1.10. Report Mobile Equipment errors +CMEE
1.10.1. Description:
This command disables or enables the use of the “+CME ERROR : <xxx>” or “+CMS
ERROR :<xxx>?? result code instead of simply ??ERROR??. See section 17.1 for +CME ERROR result
codes description and section 17.2 for +CMS ERROR result codes.
AT+CMEE=<error reporting flag> Command Possible responses AT+CMEE=0 OK Note: Disable MS error reports, use only . ERROR .
AT+CMEE=1 OK Note: Enable .+CME ERROR: <xxx>. or
.+CMS ERROR: <xxx>.
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