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:
For US customers
The following only applies to vehicles owned and operated in the US.
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately i ...
Supplementary text messages
Addition information, such as on the cause of a
fault or the required action, can be called up via
Check Control.
The supplementary text of urgent messages is
automatically displayed on the Cont ...
Swapping the telephone and additional
telephone
The function of the telephone and additional telephone
can be swapped automatically.
1. "Telephone"
2. "Bluetooth® (phone)"
3. "Swap phone/addit. phone" ...