See also:

The concept
The rear view camera assists you when parking and maneuvering in reverse. To accomplish this, the region behind your vehicle is shown on the Control Display. ...

Mirror display
The point of the compass is displayed in the mirror when driving straight. ...

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 ...