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Chapter 9 – Short Messages Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 62
Example of New Message Acknowledgement in PDU Mode:
Command Possible responses
AT+CSMS=1
Note: SMS AT Commands compatible with
GSM 07.05 Phase 2 + version
OK
AT+CMGF=0
Note: Set PDU mode
OK
Note: PDU mode valid
AT+CNMI=2,2,0,0,0
Note: <mt>=2
OK
+CMT: ,29
07913366003000F1240B913366920547F30000003003419404800
B506215D42ECFE7E17319
Note: message received
AT+CNMA=2,2 <CR>
>00D3 <Ctrl-Z>
Note: Negative ACK to the SMS.
Reason is: memory capacity exceeded
OK
AT+CNMA=2,2 <CR>
>00D3 <Ctrl-Z>
Note: Negative ACK to the SMS.
Reason is: SIM memory storage is full
OK
AT+CNMA=2,2 <CR>
>00D3 <Ctrl-Z>
Note: Negative ACK to the SMS.
Reason is: Error in modem
OK
AT+CNMA=2,2 <CR>
>00FF <Ctrl-Z>
Note: Negative ACK to the SMS.
Unspecified error
OK