Coin signaling system

Details Coin signaling system Coin signaling system

1979-08-31

1981-07-07

Brigance, Gerald L.

Multiplex communications

Wide area network

Packet switching

179 17E, 370 71, H04M 1702

Patent

active

042776473

ABSTRACT:
A subscriber loop carrier system is shown in which coin first and dial tone first pay stations can be serviced through the carrier system without modifying the central office. Coin supervisory states are detected at the central office terminal of the system, translated into unique cyclic codes for transmission through the system and detected at the remote terminal by reapplication of the coin supervisory states at the remote terminal. Coin first and dial tone first modes of operation are accommodated with simple option plugs.

REFERENCES:
patent: 3673330 (1972-06-01), Suntop et al.
patent: 3902017 (1975-08-01), Steward
patent: 4010328 (1977-03-01), McGuire
patent: 4048448 (1977-09-01), Canniff et al.
patent: 4056690 (1977-11-01), Brolin et al.
patent: 4063036 (1977-12-01), Hunsicker
patent: 4099032 (1978-07-01), Roge et al.
patent: 4105867 (1978-08-01), Levasseur et al.
patent: 4143287 (1979-03-01), Biggs
patent: 4174468 (1979-11-01), Stelte

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