Portable telephone set for performing remote control operation o

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

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Details

379 61, H04Q 720

Patent

active

056174683

ABSTRACT:
A portable telephone set is provided with a remote control button for remotely controlling the base station telephone set by operating the button. If the portable telephone set is out of the service area of the base station set when the remote control button is operated, the portable telephone set calls the base station set by using the telephone numbers of the base station set stored in the RAM of the portable telephone set to connect it to the base station set by way of a line and thereafter transmits a remote control signal for the operated remote control button to the base station set. If the portable telephone set receives control information from a radio base station as it enters the service area of the radio base station from outside the service area, the speaker of the portable telephone set sounds to notify the user of the situation. If the destination telephone set does not respond to a call of the portable telephone set, using the transceiver function with which it is provided, it automatically calls the destination telephone set with the telephone number.

REFERENCES:
patent: 4989230 (1991-01-01), Gillig et al.
patent: 5379339 (1995-01-01), Sakamoto

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