Telephonic communications – Emergency or alarm communications – Responsive to sensed nonsystem condition
Patent
1998-03-19
1999-08-24
Chan, Wing F.
Telephonic communications
Emergency or alarm communications
Responsive to sensed nonsystem condition
379 45, 379 50, H04M 1104
Patent
active
059433949
ABSTRACT:
A dialer intercept module is provided in an event detection system for automatically selecting between alternative communication channels and formats based on detected characteristics of control panel signals. More specific features detect predetermined signals, such as the telephone number dialed by the panel, or the type of alarm, and determine from the predetermined signals whether to: a) send the signal as is, over a publicly switched telephone network (PSTN); or, b) translate the signal into a different format suitable for an alternative channel, such as a wide area computer network.
REFERENCES:
patent: 5134644 (1992-07-01), Garton et al.
patent: 5272465 (1993-12-01), Meares, Jr.
patent: 5454024 (1995-09-01), Lebowitz
patent: 5457730 (1995-10-01), Rounds
patent: 5511109 (1996-04-01), Hartley et al.
Ader Richard Alan
Chernoy Michael Andrew
Chan Wing F.
Detection Systems Inc.
Mathews J. Addison
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