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Multi-Tech Systems GPRS (MTMMC-G) User Manual

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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