Siemens M20 Terminal User Manual

AT command interface
Version 8 dated 15.03.00 54
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5.4 AT commands and responses to GSM 07.07 and GSM 07.05
Test command AT+CXXX=? The mobile equipment returns the list of parameters and value ranges set with
the corresponding set command or by internal processes.
Read command AT+CXXX? This command returns the currently set value of the parameter or parameters
Set command AT+CXXX=<...> This command sets user-definable parameter values.
Execution com-
mand
AT+CXXX The execution command reads non-variable parameters affected by internal
processes in the telephone.

Siemens M20 Terminal Specifications

General

Brand	Siemens
Model	M20 Terminal
Category	Engine
Language	English