See also:

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 automatic ...

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...

What to do if...
Information on suitable mobile phones. Appointments, tasks, notes, text messages, or e-mails from the mobile phone are not displayed. ▷ The mobile phone is not capable of the missing funct ...