Process to protect against alarm signal circuit tampering or...

Details Process to protect against alarm signal circuit tampering or... Process to protect against alarm signal circuit tampering or...

G - Physics

08

B

G08B 29/00 (2006.01) G08B 29/06 (2006.01)

Patent

CA 2498365

Security and other alarm systems communicate alarm signals over telephone circuits to Central Station alarm receivers. If the telephone circuit is cut or otherwise fails, the alarm system can be defeated as the alarm signal is prevented from reaching the monitoring station, and there is no means of detecting the signal circuit failure. This invention is a process to use a verification call to the telephone circuit connected to the alarm system in a dual circuit system to protect against signal circuit tampering or failure.

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