Sennheiser Electronic Corp CDHDKB Manuel D’Utilisation

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Putting the headset system into operation
18
Lift the handset (If a handset lifter is connected, it automatically lifts 
the handset).
The system is correctly connected if you can hear a clear dial tone and 
if the other party can hear you at a comfortable level. If the audio 
signal/dial tone is disturbed, adjust the audio signal (see next section). 
If the other party cannot hear you well, adjust the microphone sensi-
tivity (see below).
Adjusting the audio signal
Set the 
ABC
 switch to 
A
 (default setting), 
B
 or 
C
 so that you can hear a 
clear signal (e.g. a dial tone) in the headset. 
Adjusting the microphone sensitivity
By default, the microphone volume control 
 is set to between position 
and position 
5
. This setting is suitable for most telephones and your voice 
gets reproduced at a good volume. To change the volume, adjust the 
microphone volume control accordingly.
Make a call to someone who will help you find the correct sensitivity 
setting for your microphone (see page 24).
Turn the microphone volume control 
 so that the other party can hear 
at a comfortable level.
The microphone volume control 
 only adjusts the microphone 
sensitivity in 
Phone 
mode. The volume of the headset earpiece 
 
is 
not adjusted (see also page 28).