Siemens M20 Terminal Technical Description page 124

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AT^SNFI Set microphone path parameters
Test command Response
AT^SNFI=? ^SNFI: (list of supported <inBbcGain>s), (list of supported <inCalibrate>s) OK
Parameter
see set command
Read command Response
AT^SNFI? ^SNF: < inBbcGain >, <inCalibrate> OK
Parameter
see set command
Set command Response
AT^SNFI=<inBbc- TA sets microphone path amplification.
Gain>,<inCalibra-
OK
te>
Note: if microphone is muted, set command is disabled.
Parameter
<inBbcGain>
<inCalibrate>
Reference Note
Set command works only in audio mode 3.
AT^SNFM Mute microphone
Test command Response
AT^SNFM=? ^SNFM: (list of supported <mute>s) OK
Parameter
see set command
Read command Response
AT^SNFM? ^CNFM: <mute> OK
Parameter
see set command
Set command Response
AT^SNFM= TA switches on/off the microphone
<mute>
OK
Parameter
<mute>
Reference Note
This command can be used in all audio modes
Version 8 dated 15.03.00
Setting for ADC gain amplifier
(0=0 dB, 13=39 dB, 14 steps of 3 dB)
0(0x0)-13(0xD)
Multiplication factor for input samples
Attenuation=20*log (inCalibrate/32768)
0(0x0)-65535 (0xFFFF)
0 Mute microphone
1 Microphone on
AT command interface
A
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