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:
Oil change
An oil change should be carried out by your
service center only.
...
Manual destination entry
General information
The system supports you in entering street
names and house numbers by automatically
completing the entry and providing entry comparisons.
Stored town/city and street names ca ...
Switching on/off manually
Switching on/off manually
Press the
button.
▷ On: the LED lights up.<>
▷ Off: the LED goes out. ...