Terminal device for network system

Details Terminal device for network system Terminal device for network system

1996-05-29

1999-02-02

Kuntz, Curtis A.

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379 9323, 379373, H04M 156, H04M 1506

Patent

active

058675671

ABSTRACT:
There is provided a terminal device for a network system. The terminal device is capable of receiving a predetermined signal representing a predetermined data which is inserted during a silent period between intermittent ringing signals. The terminal device includes a ringing signal detecting circuit and a signal receiving circuit. The signal receiving circuit is commenced to be ready to receive the predetermined signal upon detection of the ringing signal by the ringing signal detecting circuit.

REFERENCES:
patent: 4551581 (1985-11-01), Doughty
patent: 4582956 (1986-04-01), Doughty
patent: 5396548 (1995-03-01), Bayerl et al.
patent: 5452346 (1995-09-01), Miyamoto
patent: 5467385 (1995-11-01), Reuben et al.
patent: 5521969 (1996-05-01), Paulus et al.
Japanese Patent Publication No. HEI 3-74865, published on Nov. 28,1991.

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