Message billing arrangement for a communication system

Details Message billing arrangement for a communication system Message billing arrangement for a communication system

1976-01-22

1976-11-30

Claffy, Kathleen H.

H04M 1510

Patent

active

039951170

ABSTRACT:
An automatic message billing arrangement for use with a telephone system is disclosed. The billing arrangement monitors the trunks to ascertain when a trunk is seized for service. In response to a trunk being seized, the common control markers, which establish connections between the lines and trunks, are interrogated to determine which marker has seized the detected trunk. When the marker is found, the identity of the calling line to be connected to the trunk is ascertained from the marker. The calling line identity and trunk identity are used in recording the initial billing entry.

REFERENCES:
patent: 2585904 (1952-02-01), Busch
patent: 3651269 (1972-03-01), Le Strat et al.
patent: 3653003 (1972-03-01), Hemdal
patent: 3697695 (1972-10-01), Pommerening et al.
patent: 3748392 (1973-07-01), Henquet et al.
patent: 3885102 (1975-05-01), Henrickson
patent: 3937894 (1976-02-01), Grzybowski

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