Supplemental data transmission system for a parallel, direct com

Details Supplemental data transmission system for a parallel, direct com Supplemental data transmission system for a parallel, direct com

1998-02-05

2000-03-07

Chan, Wing F.

Telephonic communications

Emergency or alarm communications

Central office responsive to emergency call or alarm

379 37, H04M 1104

Patent

active

060350164

ABSTRACT:
A method for alerting law enforcement and/or security or monitoring personnel to an activated security system includes the steps of automatically placing a first telephone call from a first calling number of a security system to a predetermined called number, responsive to detection of an abnormal condition, detecting when the first call is placed, and automatically transmitting information to one or more information receiving devices in the custody or control of said personnel identifying the security system.

REFERENCES:
patent: 3914692 (1975-10-01), Seaborn, Jr.
patent: 4887291 (1989-12-01), Stillwell
patent: 5195126 (1993-03-01), Carrier et al.
patent: 5333173 (1994-07-01), Seazholtz et al.
patent: 5805670 (1998-09-01), Pons et al.

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