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 ...

Switching on/off and interrupting cruise control
Switching on Press the button on the steering wheel. The indicator lamps in the instrument cluster light up and the mark in the speedometer is set to the current speed. Cruise control can ...

The concept
This system can replace up to three different hand-held transmitters for various types of remote- controlled equipment, such as garage doors or lighting systems. The hand-held transmitter signa ...