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:
Resuming cruising speed
Press button 4:
The stored speed is resumed and maintained ...
Using contact data
At a glance
Contact data from appointments, tasks, text
messages, emails and notes can be stored or
selected.
Displaying contact or selecting phone
number
1. "Use contact data".
2. ...
Switching off
The system can be deactivated as follows:
▷ Press the button.
▷ Switch off the ignition. ...