June 30, 2008 AT Commands Reference Manual 3-1
Chapter 3: AT Commands Reference

Modem ID

Subscriber Unit Identity

These commands allow the user to query the type of device that is attached, the technology used
in the device, as well as basic operating information about the device.
+CGMI, +GMI, +FMI, Request Manufacturer ID
These commands display manufacturer identification. The G24 outputs a string containing
manufacturer identification information, indicating that this is a Motorola device.
Example
AT+CG MI
+CGMI: "Motorola"
OK
AT+GM I
+CGMI: "Motorola"
OK
AT+FM I
+CGMI: "Motorola"
Command Response/Action
AT+CG MI
AT+C GMI? +CGMI: "Motorola"
AT+GM I
AT+G MI? +CGMI: "Motorola"
AT+FM I
AT+F MI? +CGMI: "Motorola"