At+cgmi request manufacturer identification, At+cgmm request model identification, 10 at+cgmi request manufacturer identification – Siemens MC35 User Manual
Page 70: 11 at+cgmm request model identification

AT Command Set
MC35_ATC_01_V03.02
Page 70 of 228
13.03.2002
4.10 AT+CGMI Request manufacturer identification
Test command
AT+CGMI=?
Response
OK
Execute command
AT+CGMI
Response
TA returns manufacturer identification text.
SIEMENS
OK
Reference
GSM 07.07
Note
See also ”AT+GMI Request manufacturer identification”.
4.11 AT+CGMM Request model identification
Test command
AT+CGMM=?
Response
OK
Execute command
AT+CGMM
Response
TA returns product model identification text.
MC35
OK
Reference
GSM 07.07
Note
See also ”AT+GMM Request TA model identification”.
4.12 AT+CGMR Request revision identification of software status
Test command
AT+CGMR=?
Response
OK
Execute command
AT+CGMR
Response
TA returns product firmware version identification text.
REVISION xx.yy
OK
xx.yy Version xx and variant yy of software release
Reference
GSM 07.07
Note
See also AT+GMR Request TA revision identification of software status