Automatic number identification

Details Automatic number identification Automatic number identification

1974-06-26

1976-03-09

Brown, Thomas W.

H04Q 372

Patent

active

039432980

ABSTRACT:
An automatic number identification system in a tributary office having simultaneous dual operation for high traffic capacity. A pair of identifier units applying identification signals via the sleeve wire associated with the calling stations to a common matrix or directory number network.

REFERENCES:
patent: 3413421 (1968-11-01), Cochran et al.
patent: 3749844 (1973-07-01), Dufton
patent: 3787632 (1974-01-01), Male et al.

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