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:
Display
Language on the Control DisplaySetting the language
1. "Settings"
2. "Language/Units"
3. "Language:"
4. Select the desired language.
The se ...
Compressed audio files
Playback
1. Select the directory if necessary.
Select the directory if necessary
2. Press the button.
3. Select a track.
Select a track
4. Press the button.
5. Select "Play".
6 ...
Time
Setting the time zone
1. "Settings"
2. "Time/Date"
3. "Time zone"
4. Select the desired time zone.
The time zone is stored.
Setting the time
1. "Settings" ...