System for interfacing a standard telephone set with a radio transceiver

  • US 4,658,096 A
  • Filed: 09/18/1984
  • Issued: 04/14/1987
  • Est. Priority Date: 09/18/1984
  • Status: Expired due to Term
First Claim
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1. A telephone interface system for coupling a standard Touch-Tone/rotary dial telephone set with a radio transceiver used in a telephone communication system wherein the transceiver is capable of radio communication with a remote radio transmitter-receiver system that is part of a telephone network, wherein the interface system comprises:

  • telephone coupling means for providing a two-way communication link with the telephone set;

    transceiver coupling means for providing a two-way communication link with the radio transceiver;

    telephone number digital conversion means for receiving a group of touch tone or rotary dialed telephone numbers from said telephone coupling means, converting the group of telephone numbers into digital data, and providing said digital data to said transceiver coupling means;

    determination means coupled with the telephone number digital conversion means for determining the last number of the group of telephone numbers provided at said transceiver coupling means;

    send signal means coupled with said determination means for providing a send signal to the transceiver coupling means;

    call detecting means for detecting an incoming call signal provided at said transceiver coupling means;

    off-hook detecting means for detecting an off-hook signal provided at said telephone coupling means;

    audio channel means for providing a two-way audio signal path between said telephone coupling means and said transceiver coupling means; and

    telephone simulation means coupled with said telephone coupling means for providing audio frequency ring tone and dial tone signals thereto.

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