User's Manual

AT Command Set
MC35_ATC_01_V04.00 Page 197 of 238 02.04.2002
8.22 AT^SNFM Mute microphone
Test command
AT^SNFM=?
Response
^SNFM: (list of supported <mute>s) OK
Parameter
See write command
Read command
AT^SNFM?
Response
^SNFM: <mute> OK
Parameter
See write command
Write command
AT^SNFM=<mute>
Response
TA switches on/off the microphone
OK
Parameter
<mute> 0 Mute microphone
1 Microphone on
Reference
Siemens
Note
This command can be used in all audio modes and during a voice call
only.
8.23 Audio programming model
The following figure illustrates how the signal path can be adjusted with the AT command parameters
described in the Chapters 0 to 8.27
A
D
A
D
-∞...0dB
speechcoder
(0dB; -6db,
-12dB; -18dB)
+0..42dB in
6dB-ste
p
s
1k
1k
1k
1k
2,65V
10uF
6,8R
6,8R
+
sideTone
A
T parameters
outCalibrate[n]
n = 0...4
inCalibrate
inBbcGain
outBbcGain
speechdecoder
Figure 1: AT audio programming model