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 ...

Reference
This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...

The concept
▷ The voice activation system can be used to operate functions by means of spoken commands. The system prompts you to make your entries. ▷ Functions that can only be used when the v ...