User's Manual
HSDPA Standard At Commands Page 18 of 60  Version 1.2 
General commands 
ITU-T Recommendation V.250 [14] includes "Generic DCE Control" commands with the prefix +G. 
These commands are for the identification of the TA. Four of those commands are adapted here to be 
the identification commands of the MT. Syntax is otherwise similar but the prefix is +CG. TIA 
IS-99 [15] uses same commands for base station identification. 
Table 6. General AT command 
Command  Req  Description  Support 
+CGMI  Opt.  Request manufacturer identification 
supported 
+CGMM  Opt.  Request model identification 
supported 
+CGMR  Opt.  Request revision identification 
supported 
+CGSN  Opt.  Request product serial number identification 
supported 
+CSCS  Mand.  Select TE character set 
supported 
+CIMI Opt. Request international mobile subscriber identity 
supported 
+CMUX     Multiplexing mode  Not supported 
1.11.  Request manufacturer identification(+CGMI) 
Execution command causes the TA to return one or more lines of information text <manufacturer>, 
determined by the MT manufacturer, which is intended to permit the user of the TA to identify the 
manufacturer of the MT to which it is connected to. Typically, the text will consist of a single line 
containing the name of the manufacturer, but manufacturers may choose to provide more information 
if desired. 
Table 7. +CGMI action command syntax 
Command  Possible response(s) 
+CGMI <manufacturer> 
+CME ERROR: <err> 
+CGMI=? 
value  <manufacturer>: the total number of characters, including line terminators, in the 
information text shall not exceed 2048 characters 
1.12.  Request model identification(+CGMM ) 
Execution command causes the TA to return one or more lines of information text <model>, 
determined by the MT manufacturer, which is intended to permit the user of the TA to identify the 
specific model of the MT to which it is connected to. Typically, the text will consist of a single line 
containing the name of the product, but manufacturers may choose to provide more information if 
desired. 










