Switching the microphone to mute
When a call is active, the microphone can be muted.
1. "Telephone"
2. "Active calls"
3. 
"Microphone
mute"
A microphone that has been switched to mute is automatically reactivated:
▷ When a new connection is established.
▷ When switching between call parties.
See also:
Switching the system on/off
Press the left or right side of the button
on the CD/DVD player in the rear for the
respective page.
Rear entertainment and screens are switched
on/off.
After switching off the ignition, ...
Activating HDC
Press the button; the LED above
the button
lights up. ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...