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:
Adjusting the volume
Turn the knob until the desired volume is selected.
The setting is stored for the remote control
currently in use. ...
Environmental conditions
Say the commands, numbers, and letters
smoothly and with normal volume, emphasis,
and speed.
Always say commands in the language of
the voice activation system.
When selecting a radio ...
Overview, instrument cluster
Overview, instrument cluster
1 Messages, e.g. Check Control
Time
Date
External temperature
Selection lists
& ...