AT Command Set
MC35_ATC_01_V05.00 Page 211 of 256 15.07.2002
Test command
AT^SNFS=?
Response
^SNFS: (list of supported <audMode>s) OK
Parameter
See write command
Read command
AT^SNFS?
Response
^SNFS: <audMode> OK
Parameter
See write command
Write command
AT^SNFS=
<audMode>
The write command serves to set the audio mode required for the connected
equipment. The selected audio mode is saved volatile and needs to be restored
manually, if the GSM engine was powered down. Also, there is no way to store the
audio mode to the user defined profile.
Response
OK
If error is related to ME functionality:
+ CME ERROR: <error>
Parameters
<audMode> 1 Audio mode 1: Standard mode optimized for the default handset,
that can be connected to the analog interface 1 (see your
"Hardware Interface Description" for information on this hand-
set.) To adjust the volume use the knob of the default handset.
In audio mode 4 and 5, this handset can be used with user de-
fined parameters.
Note: The default parameters are determined for type approval
and are not adjustable with AT commands.
2 Audio mode 2: Customer specific mode for a basic handsfree
device (Siemens Car Kit Portable) connected to the analog inter-
face 2.
3 Audio mode 3: Customer specific mode for a mono-headset that
connects to the analog interface 2.
4 Audio mode 4: Customer specific mode for a user handset that
connects to the analog interface 1.
5 Audio mode 5: Customer specific mode intended for the analog
interface 1.
6 Audio mode 6: Customer specific mode intended for the analog
interface 2.
In modes 2 – 6, audio parameters can be adjusted with AT commands.
Reference
Siemens
Note
The write command can be used during a voice call to switch back and forth bet-
ween different modes. This allows the user, for example, to switch handsfree opera-
tion on and off.
Users should be aware that <outStep> is a global setting, i.e. when selecting an-
other audio mode the value of <outStep> does not change. This is also true for mute
operation which can be set with AT^SNFM or AT+CMUT: If the microphone is
muted and the user changes to another audio mode then the microphone remains
muted until explicitly changed. Exception: In audio mode 1 <outStep >=4 is fix.