Siemens Brodersen MC55 AT - Manual (Page 419)

MC55_ATC_V04.00 Page 419 of 475 3/17/06
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Notes
• The write command can be used during a voice call to switch back and forth between different modes. This
allows the user, for example, to switch handsfree operation (speakerphone) on and off.
• Users should be aware that is a global setting. This means, when another audio mode is selected
during a call, the value of 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 selects another audio mode during the
call, then the microphone remains muted until explicitly changed. Exception: In audio mode 1 =4
is fix.
• For use after restart of the module, you are advised to store the selected mode to the audio profile saved with
AT^SNFW
. Otherwise, audio mode 1 will be active each time the module is powered up.
Examples
EXAMPLE 1
Suppose a user wishes to use alternatively a handsfree device (speakerphone) and a handset. The handset
can be connected to the first analog interface and adjusted to audio mode 4. The handsfree device can be
attached to the second analog interface and adjusted to audio mode 2. The factory defaults of
AT^SAIC
need
not be changed.
Settings for the handset:
Settings for the handsfree device:
To store the configuration to the user defined audio profile:
To switch back and forth:
EXAMPLE 2
The following example illustrates a combination of a handset and a handsfree device connected to other inter-
faces than those assumed as factory default.
Settings for a handset connected to the second analog interface and adjusted to audio mode 4:
Settings for a handsfree device connected to the first analog interface and adjusted to audio mode 2:
To store the configuration to the user defined audio profile:
AT^SNFS=4
OK
AT^SAIC?
Factory default of AT^SAIC assigned to audio mode 4.
^SAIC: 2,1,1
OK
AT^SNFS=2
OK
AT^SAIC?
Factory default of AT^SAIC assigned to audio mode 2.
^SAIC: 2,2,2
OK
AT^SNFW
Stores the audio mode and the interface.
OK
AT^SNFS=4
Switches to the handset connected to analog interface 1.
OK
AT^SNFS=2
Switches to the handsfree device at analog interface 2.
OK
AT^SNFS=4
OK
AT^SAIC=2,2,2
OK
AT^SNFS=2
OK
AT^SAIC=2,1,1
OK