Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 55 23.06.2010
7 (Technical problem)
11 (Command not allowed)
15 (SIM card out)
0 (Unknown)
(
SM cause) See [24.008]
Reference
GSM 07.07 [13]
Note
3.2.8 AT+CGMI Request Manufacturer Identification
AT+CGMI Request Manufacturer Identification
Test Command
AT+CGMI=?
Response
OK
Execution
Command
AT+CGMI
Response
TA returns manufacturer identification text.
<manufacturer>
OK
Parameter
<manufacturer> the ID of manufacturer
Reference
GSM 07.07 [13]
Note
3.2.9 AT+CGMM Request Model Identification
AT+CGMM Request Model Identification
Test Command
AT+CGMM=?
Response
OK
Execution
Command
AT+CGMM
Response
TA returns product model identification text.
<model>
OK
Parameter
<model> product model identification text.
Reference
GSM 07.07 [13]
Note
3.2.10 AT+CGMR Request TA Revision Identification of Software Release
AT+CGMR Request TA Revision Identification of Software Release