Telephone line called number recognizer

Details Telephone line called number recognizer Telephone line called number recognizer

1989-06-22

1991-03-05

Ng, Jin F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote control

379180, 379201, 379373, H04M 1100, H04M 342

Patent

active

049982737

ABSTRACT:
A party-like telephone line with plural numbers having distinguishable ringing signals on a single line is automatically connected to a facsimile or other telephone connected device for receiving incoming messages upon sensing a predetermined ring sequence with an interface, counter, timers, and comparator.

REFERENCES:
patent: 4146754 (1979-03-01), Rose
patent: 4701949 (1987-10-01), Lynch et al.
patent: 4782518 (1988-11-01), Mattley et al.
patent: 4821312 (1989-04-01), Horton et al.

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