Siemens TC37 Module - AT+CMUT Mute Control

AT Command Set
TC3X_ATC_01_V04.00 Page 85 of 204 29.05.2002
4.23 AT+CMUT Mute control
Test command
AT+CMUT=?
Response
+CMUT: (list of supported <n>s)
OK
Read command
AT+CMUT?
Response
+CMUT: <n>
OK/ERROR/+CME ERROR
Write command
AT+CMUT=<n>
Response
OK/ERROR/+CME ERROR
Parameter
<n>: 0 mute off
1 mute on
Reference
GSM 07.07
Note
This command can be used in all audio modes (1 to 6) and during a voice
call only. See AT^SNFS in Chapter 6.26 for more details on the various
audio modes.
Users should be aware that when they switch back and forth between
different audio modes the value of <mute> does not change. This means
that the status of mute operaton is retained until explicitly changed.
As alternative, you can use the AT^SNFM command described in
Chapter 6.22.