Category:SIMCOM GSM AT

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Template

  • Make sure network register, net led blink every 3 seconds
Excute Feedback Read Feedback Write Feedback Test Feedback Description
- - - - ATD+number; "ATD18576608994;" OK - - don't forget the ";" after AT commands
ATA OK - - - - - - answer the incoming phone call
ATH or AT+CHUP OK - - - - - - hang off the phone call
AT+COLP +COLP:"10086",129,"","" - - - - - - show up the calling number
AT+CLIP (AT+CLIP=1) +CLIP:"15124532672",161,"",,"ailin",0, - - - - - - Enable calling number display
AT+CSDVC - - - - - - - 1 = microphone output, 3 = speaker output
- - AT+CLVL=? +CLVL: (0-5) //The volume is 0~5 adjustable Set volume to 2: AT+CLVL=2 - - - Check volume range
- - - - - - - - -
- - - - - - - - -


DTMF

  • AT+CLDTMF=2,"1,2,3,4,5"
  • AT+VTS=1 send DTMF voice, this is send "1" tone
Excute Feedback Read Feedback Write Feedback Test Feedback Description
- - - - AT+VTS=* - - -
  • send DTMF audio.
  • for example, when we call the service provider number and need the press number 1 for operation, you can do AT+VTS=1

Phone Number Book

  • List avaialble number book: AT+CPBS=?
  • Choose sim book: AT+CPBS="SM"
  • List number book range: AT+CPBR=?
  • list number book contents: AT+CPBR=1,10
  • write a contact into number book -> AT+CPBW="13800138000",,"China mobile"
  • check if avaialble by: AT+CPBF="China mobile"
  • Delete -> AT+CPBW=2


Audio parameter debugging

  • AT+CACDBFN=?
  • +CACDBFN: (Handset_cal.acdb,Handset_tianmai.acdb) // It is recommended to consider setting this parameter
  • OK

A. The module is powered on during the initialization phase. Before making a call, add the following

  • AT^PWRCTL=0,1,3 // Mainly improve TDD noise effect
  • OK

B. Module establishes a voice call

  • VOICE CALL: BEGIN // Module call setup is performed to improve call performance
  • AT+CECM=1 //Echo suppression processing
  • OK
  • AT+CECH=0x500 //Improve the volume effect of the mobile phone
  • OK

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