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System for verifying the identity of a caller in a telecommunications network

  • US 5,274,695 A
  • Filed: 01/11/1991
  • Issued: 12/28/1993
  • Est. Priority Date: 01/11/1991
  • Status: Expired due to Fees
First Claim
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1. In a telecommunications network operable for completing a call placed by a caller and for delivering the ANI of the calling station from which the call is placed, a method of operating the network for verifying the identity of the caller, said method comprising the steps of:

  • connecting voice responsive control means with the network, said control means being operable for storing and retrieving a voice template, for storing a spoken utterance, and for comparing the utterance with the template;

    initially preventing completion of calls over the network originating from calling stations associated with a predefined group of ANI'"'"'s;

    enrolling a caller by assigning a passcode to the caller, by storing a retrievable voice template of the caller speaking said passcode, and by associating said template for retrieval with an ANI associated with the caller;

    delivering and storing a spoken utterance of said passcode and the ANI of the station from which the call originated when the call originates from an ANI-associated calling station included in said predefined group, and retrieving said template associated with said passcode and ANI;

    comparing said stored utterance with said template; and

    completing the caller'"'"'s call if said stored utterance matches said template thereby verifying the identity of the caller,said method further including the steps ofenrolling a plurality of callers thereby assigning a respective plurality of passcodes thereto and storing a respective plurality of voice templates thereof associated with the same ANI,said comparing step including the step of comparing said spoken utterance with said plurality of templates corresponding to the ANI associated with the caller,said completing step including the step of completing the call if said spoken utterance matches one of said templates.

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