System for interfacing a standard telephone set with a radio tra

Details System for interfacing a standard telephone set with a radio tra System for interfacing a standard telephone set with a radio tra

1988-09-15

1990-05-01

Lev, Robert

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 63, H01Q 704

Patent

active

049225170

ABSTRACT:
An interface system for interfacing a standard telephone set with a radio transceiver as part of a telephone network is provided. The radio transceiver may be a conventional cellular-type transceiver or other transceiver having typical control inputs and outputs similar to that provided by cellular transceivers. The interface system converts tone-dial or pulse-dial inputs from the telephone into a serial data stream for storage in the transceiver. The interface system automatically determines when the last numeral or digit is dialed and provides a send signal to the transceiver when such determination is made. The system responds to incoming call signals, such as alert signals, from the transceiver and rings the telephone accordingly. The system simulates ring and dial-tone type signals under conditions typical of standard telephone set usage.

REFERENCES:
patent: 3856982 (1974-12-01), Lawson et al.
patent: 4122304 (1978-10-01), Mallien, II
patent: 4658096 (1987-04-01), West, Jr. et al.
"Description and Specification--GNTA Payphone Type AY4 (NMT)", Feb. 25, 1982.
RYDAX ACS public mobile telephone system; Rydax, Inc.; 1974.
Radio Linked Exchange and Concentrator Rural Telephone System (RTS); 1975.
R.A.C.E. Automated HF Radio System for Voice and Data Communication; R.A.C.E. Technologies, Inc., Vancouver, Canada.

Affiliated with

Also associated with

Rating

System for interfacing a standard telephone set with a radio tra does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for interfacing a standard telephone set with a radio tra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for interfacing a standard telephone set with a radio tra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-835348