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Redundant alarm monitoring system

  • US 5,862,201 A
  • Filed: 09/12/1996
  • Issued: 01/19/1999
  • Est. Priority Date: 09/12/1996
  • Status: Expired due to Term
First Claim
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1. An alarm system comprising:

  • a customer site having an alarm communicator for originating an alarm call to an alarm monitoring station and transmitting an alarm message;

    a first monitoring station for receiving the alarm message through a telecommunications network, the first monitoring station having a first alarm processor system for processing the alarm message, the first alarm processor system including a customer database for responding to the alarm message;

    a second monitoring station for receiving the alarm message through the telecommunications network and having a second alarm processor system for processing the alarm message, the second alarm processor system including a customer database for responding to the alarm message;

    alternate routing in the network for initially routing the alarm call to the first monitoring station and for subsequently rerouting the alarm call to the second monitoring station if the alarm call to the first monitoring station cannot be completed; and

    a data link between the first and second alarm processor systems for linking the customer databases wherein the linking includes updating the customer database of one of the first and second alarm processor systems when the call has been routed to the other of the first and second alarm processor systems such that the customer databases are redundant.

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