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Alarm system providing tamper deterrent signalling and method

  • US 9,111,431 B2
  • Filed: 08/25/2011
  • Issued: 08/18/2015
  • Est. Priority Date: 11/05/2010
  • Status: Active Grant
First Claim
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1. A method of signalling a sensed alarm condition from an alarm system at a premises to a monitoring station, said method comprising:

  • determining if said sensed alarm condition is associated with a disarm delay;

    in response to determining that said sensed alarm condition is associated with a disarm delay, initiating a disarm delay timer;

    prior to expiry of said disarm delay timer and in response to sensing said alarm condition, establishing a communications connection over a network to an alarm monitoring station, without dispatching a message signalling said sensed alarm condition; and

    upon expiry of said disarm delay timer and if said system has not been disarmed, dispatching a signal indicative of said sensed alarm condition to said alarm monitoring station over said connection, which has previously been established,wherein said establishing comprises at least one of establishing a connection to a cellular data network;

    obtaining a dynamically assigned IP address; and

    creating an IP socket to said monitoring station.

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