User manual

Wavecom GSM Modem
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4. AT commands for SIM, E2prom
4.1. Product Serial Number +CGSN
This command allows the user application to know the IMEI of the GSM
module. The application sends :
Application to GSM AT+CGSN request IMEI
GSM to application 135790248939
OK
IMEI present in E2PROM
Application to GSM AT+CGSN request IMEI
GSM to application +CME ERROR: 22 IMEI not found in E2PROM
4.2. Request model identification +CGMM
This command is used to get the hardware version.
Application to GSM AT+CGMM get hardware version
GSM to application GSM P 900
OK
command valid
4.3. Request revision identification +CGMR
This command is used to get the software version.
Application to GSM AT+CGMR get software version
GSM to application V2.74
OK
command valid