See also:

Functional requirements
There are no external sources of interference nearby. To lock the vehicle, the remote control must be located outside of the vehicle. The next unlocking and locking cycle is not possib ...

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 ...

Activation/deactivation
Press the button. ...