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 ...

Suitable media
Use of CDs/DVDs ▷ Do not use self-recorded CDs/DVDs with labels applied, as these can become detached during playback due to heat buildup and can cause irreparable damage to the devic ...

The concept
▷ The mobile phone can be operated without taking your hands from the steering wheel. ▷ In many cases, the entries are accompanied by announcements or questions. ▷ ›...‹ Verbal ...