See also:

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 ...

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...

Using voice activation
Activating the voice activation system 1. Briefly press the button on the steering wheel. 2. Say the command. Terminating the voice activation system Briefly press the button on the stee ...