4.8 External SMS Control

If this function is enabled for the active Telnet session, the GSM gateway automatically sends information on an incoming SMS message. An SMS message can also be sent using special commands.

  • AT – 'basic keep alive' command (answer 'OK')
  • AT!G=A6 – Activation of SMS control(can be activated only in one session at same time)
  • AT!G=A55 – Deactivation of SMS control
  • AT^MS=ch – GSM module [ch] status
  • AT^MI=ch – GSM module [ch] info
  • AT^SX=ch – Request to list all SMS messages and status confirmations saved in the SIM card / GSM module. Possible answers: *smserr(busy,list) or *smsinc (ix=1–255) for each saved SMS or status SMS. End of list or empty storage – *smsinc(ix=0), or *smserr 255
  • ST^SR=ch,ix – Request to read an SMS message or SMS status saved on the SIM card. Possible answers: *smserr (busy,read) or *smspdu
  • AT^SD=ch,ix – Request to delete an SMS message (or SMS status message). Possible answers: *smserr (busy,delete) or *smsdel
  • AT^SM=ch,len,pdu,csum – Request to send a message via GSM module 0..31 or via any GSM module (ch=32). Possible answers: *smserr (busy,write) or *smsout
  • AT^SG=grp[/id],len,pdu,csum – Request to send an SMS message via GSM outgoing group 1..8. Possible answers: *smserr (busy,write) or *smsout
  • AT^SS=ch,mem – Command for an SMS storage change. Ch (0–31) = module number. Mem (1;2;3) = SMS storage type

SMS Storages

  • Siemens/Cinterion: 1=SM, 2=ME, 3=ME
  • Ericsson: 1=SM, 2=ME, 3=ME
  • Wavecom: 1=SM, 2=ME, 3=SR
  • Huawei: 1=SM, 2=SM, 3=SM
  • SierraWir.: 1=SM, 2=ME, 3=SR
  • Motorola: 1=IM, 2=IM, 3=IM

(SM = SIM card, ME = module, SR = status report memory, IM = inbox memory)

Information Messages

  • *smsinc: ch,ix,sts,mem – An SMS message was received and saved into the SMS storage.
  • *smsrep: ch,ix,sts,mem – An SMS status confirmation was received.
  • *smsout: ch[/id],ref,req – An SMS message was sent and not saved into the SMS storage.
  • *smspdu: ch,ix,sts,len,pdu,csum – Content of SMS message or status confirmation.
  • *smsdel: ch,ix – An SMS message or status confirmation was deleted from position ix.
  • *smserr: ch[/id],ix,req,err,cms – Response to an error command.
  • *smssel: ch,cnt – Confirmation of an SMS storage change.