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Security system using call display

  • US 5,511,109 A
  • Filed: 10/01/1993
  • Issued: 04/23/1996
  • Est. Priority Date: 10/01/1993
  • Status: Expired due to Term
First Claim
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1. A security system comprising a host of alarm panels each of which receives signals from sensors indicating the presence of an alarm condition in a space being monitored, each alarm panel includes means to originate a telephone communication over a telephone network to a receiving arrangement and provide information signals thereto regarding an alarm condition, said receiving arrangement being connected to and providing said information to a central computer which processes the information signals and based thereon adopts an appropriate course of action, said receiving arrangement upon initiation of a telephone communication from any of said alarm panels also includes means for receiving telephone network information from the telephone network which telephone network information is particular to a telephone service used by the alarm panel to originate the telephone communication and subsequently receives the information alarm signal from the alarm panel;

  • said receiving arrangement, upon receipt of a telephone communication from an alarm panel, includes means to combine the telephone network information with information from the alarm panel and provides this combined information in a data signal to the central computer for processing.

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