Telephone ringer control device

Details Telephone ringer control device Telephone ringer control device

1996-02-20

1998-09-22

Loomis, Paul

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379190, 379199, 379421, H04M 156, H04M 1508, H04M 300, H04M 166

Patent

active

058126481

ABSTRACT:
A telephone ringer control device selectively activates or deactivates a telephone ringer to silence a telephone during specified periods. The silent periods may be specified by a timer. In one embodiment, the ringer control device includes a remotely accessible activation circuit that allows the ringer control device to be programmed or overridden via a telephone line. In another embodiment, the ringer control device includes a caller identification to allow the user to block out all calls except for those originating from specified callers. The ringer control device may be mounted within the telephone housing, may be a stand-alone item, or may be incorporated in a telephone answering machine.

REFERENCES:
patent: 4405839 (1983-09-01), Groff
patent: 4893329 (1990-01-01), O'Brien
patent: 5265145 (1993-11-01), Lim
patent: 5317632 (1994-05-01), Ellison
patent: 5546448 (1996-08-01), Caswell et al.
patent: 5604797 (1997-02-01), Adcock

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