See also:

Putting into operation after a power failure
Putting the parking brake into operation The parking brake should only be put into operation again if it was manually released due to an interruption in the supply of electrical power. Otherw ...

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 automa ...

DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...