See also:

Traffic bulletins on the map
"Traffic conditions/gray map" active: The Control Display changes to a black and white display. This enables a better view of the traffic bulletins. The day/night mode is disregarded ...

Switching off
Press the button repeatedly until the LEDs go out. ...

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 ...