Siemens MC55 - Manual (Page 409)

MC55 AT Command Set
16.12 AT^SNFM
s
m
obile
MC55_ATC_V01.05 Page 409 of 469 2/10/04
Confidential / Released
Parameter Description
Microphone mute control parameter.
Evaluated during voice calls and if
<MicVccCtl>
is omitted only, e.g.
AT^SNFM
=1.
Command does not depend on audio mode.
0 Mutes the microphone.
1 (P) Activates the microphone.
Microphone supply voltage control parameter.
Setting applies to microphone input 2 only.
CME error is given if
<MicSwitch>
is not omitted. Enter for example
AT^SNFM
=,1 or
AT^SNFM
=,2.
0 Supply voltage is always switched off.
1 Supply voltage is always switched on.
2 (P) Supply voltage state during voice calls is controlled by the ME. Actual value is
determined by parameter data set of the selected audio mode.
Microphone supply voltage control status.
0 Supply voltage was set to a constant value.
2 Supply voltage state is controlled by the ME and depends on parameter data
set of the selected audio mode.
Notes
• The programmable power supply of the MICP2 line gives you greater flexibility in connecting audio accesso-
ries or using MICP2 for a variety of functions other than audio. A detailed description of the extended usage
of MICP2 can be found in
[7] .
• The microphone can be muted or activated in all audio modes (1 to 6) and during a voice call only. See
AT^SNFS
for more details on the various audio modes. As alternative, you can use the
AT+CMUT
command
to mute the microphone.
• During an active call, users should be aware that when they switch back and forth between different audio
modes (for example handsfree on/off) the value of
<MicSwitch>
does not change, i.e. the microphone mode
is retained until explicitly changed.
<MicSwitch>
(num)
<MicVccCtl>
(num)
<MicVccState>
(num)