Digitally controlled telephone answering switching system

Details Digitally controlled telephone answering switching system Digitally controlled telephone answering switching system

1976-10-18

1980-07-01

Brown, Thomas W.

179 27FH, H04Q 360

Patent

active

042107830

ABSTRACT:
A computer controlled telephone answering system is disclosed which can economically and efficiently serve a large number of subscribers over a vast geographic area. The system utilizes a plurality of remote sites each of which is adjacent to a telephone company central office and which includes a trunk concentrator invention to reduce the number of trunk lines required to service the subscribers. A central site of this answering system serves as a facility to answer calls relayed through the remote sites. It also includes a trunk concentrator invention to further reduce the number of trunk lines to operator positions. A computer at the central site controls the entire system, determines switching paths from a subscriber line to an operator, furnishes answering information to operators and stores instructions for answering incoming messages. The logic of the system permits any operator to answer any incoming telephone call on any subscriber line promptly, economically and correctly. The trunk concentrator invention includes a bidirectional analog switching means for interconnecting any one of a plurality of incoming trunk lines to any one of a lesser number of outgoing trunk lines. It also includes means for testing for a ringing subscriber line and transmitting the subscriber's identity to the central office.

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