Abstract: A radio-signal-responsive vehicle device control system including a receiver unit (9, 41, 74, 100) for receiving a radio signal generated based on a signal transmitted from a calling telephone unit and for generating a detectable signal based on the received radio signal, receiver unit storage structure (8, 91, 102) mounted in a motor vehicle for storing the receiver unit, a detector (D, 42, 73) for producing a detected signal in response to detection of the detectable signal from the receiver unit, a control unit (S, S', 43, 60) responsive to the detected signal from the detector for producing a control signal based on at least the detectable signal, and an actuator (A, F, 52, 56, 46, 68, 75, 517A) for controlling at least one device in the motor vehicle based on the control signal from the control unit.

Abstract: An automobile telephone unit (T) has a main body (11) located in a prescribed position in the cabin of an automobile, a telephone number dialing device (D) electrically connected to the main body (11), and a handset (12) electrically connected to the main body (11) through a connector cord (2) and supportable on the main body (11) when not in use. A takeup mechanism having a reel (R) for winding the connector cord (20) is disposed in the main body (12). A switch mechanism (23, 24) coacting with the takeup mechanism is disposed in the main body (12) for energizing the telephone unit (T) when the connector cord (T) is unreeled a predetermined length from the reel (R) and for de-energizing the telephone unit (T) when the connector cord (20) is rewound on a predetermined length on the reel (R). Even if the automobile is vibrated when it is running on a rough road, the telephone unit (T) is not energized unless the connector cord (20) is unreeled the predetermined length from the reel (R).