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MC55 AT Command Set
16.12 AT^SNFM
Parameter Description
(num)
<MicSwitch>
Microphone mute control parameter.
Evaluated during voice calls and if
Command does not depend on audio mode.
0
(P)
1
(num)
<MicVccCtl>
Microphone supply voltage control parameter.
Setting applies to microphone input 2 only.
CME error is given if
<MicSwitch>
0
1
(P)
2
(num)
<MicVccState>
Microphone supply voltage control status.
0
2
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
for more details on the various audio modes. As alternative, you can use the
AT^SNFS
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
is retained until explicitly changed.
MC55_ATC_V01.05
Confidential / Released
is omitted only, e.g.
<MicVccCtl>
Mutes the microphone.
Activates the microphone.
is not omitted. Enter for example
Supply voltage is always switched off.
Supply voltage is always switched on.
Supply voltage state during voice calls is controlled by the ME. Actual value is
determined by parameter data set of the selected audio mode.
Supply voltage was set to a constant value.
Supply voltage state is controlled by the ME and depends on parameter data
set of the selected audio mode.
<MicSwitch>
Page 409 of 469
s
=1.
AT^SNFM
=,1 or
AT^SNFM
AT^SNFM
AT+CMUT
does not change, i.e. the microphone mode
m
obile
=,2.
command
2/10/04
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