Specifications

TC35i AT Command Set
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TC35i_ATC_V01.05 Page 217 of 278 04.08.2003
7.28 AT^SNFM Mute microphone
Test command
AT^SNFM=?
Response
^SNFM: (list of supported <mute>s) OK
Parameter
See write command
Read command
AT^SNFM?
The read command returns whether the microphone is on or off. It can be
used no matter whether or not a voice call is in progress.
Response
^SNFM: <mute> OK
Parameter
See write command
Write command
AT^SNFM=<mute>
The write command serves to switch on or off the microphone input. The
command can be used in all audio modes (1 to 6), but is allowed only
during a voice call.
Response
OK
Parameter
<mute> 0 Mute microphone
1 Microphone on
Reference
Siemens
Note
During a voice call, users should be aware that when they switch back
and forth between different audio modes (for example handsfree on/off)
the value of <mute> does not change. This means that the status of mute
operaton is retained until explicitly changed.
As an alternative, you can use the AT+CMUT command described in
Chapter 4.27.