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Emergency call station identification system

  • US 5,347,568 A
  • Filed: 07/09/1993
  • Issued: 09/13/1994
  • Est. Priority Date: 04/17/1991
  • Status: Expired due to Term
First Claim
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1. Apparatus for identifying, to an appropriate public safety answering point (PSAP) connected in a "9-1-1" emergency call network having a designated protocol, a specific station, of a plurality of geographically-dispersed stations represented by a common phone number identifiable by the "9-1-1" emergency call network and serviced by a private branch exchange (PBX) having a different protocol, initiating a "9-1-1" emergency call, comprising:

  • (a) means for assigning an arbitrary designation representing a specific station identified as having initiated a "9-1-1" emergency call, and for transmitting said arbitrary designation to the appropriate PSAP; and

    (b) means, integral in a common module with said assigning means, for harmonizing, prior to entry of the emergency call into the "9-1-1" emergency call network, the PBX protocol with the protocol of the "9-1-1" emergency call network;

    (c) wherein the PSAP identifies the specific station having initiated the "9-1-1" emergency call based upon said arbitrary designation; and

    (d) wherein the PSAP identifies the specific station having initiated the "9-1-1" emergency call without the need of any companion equipment to said module.

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