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Call handling method for credit and fraud management

  • US 5,875,236 A
  • Filed: 11/21/1995
  • Issued: 02/23/1999
  • Est. Priority Date: 11/21/1995
  • Status: Expired due to Term
First Claim
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1. A method for identifying whether a telephone call to be billed to a billing number in a telecommunications network is potentially fraudulent, comprising the steps of:

  • (a) searching for said billing number in a network access interruption database;

    (b) selectively enrolling said billing number in said network access interruption database if said billing number was not found in said searching step;

    (c) accumulating a cost, if any, of prior calls charged to said billing number;

    (d) measuring the cost of said call;

    (e) adding said cost of said call to said cost of prior calls to form an accumulated cost;

    (f) comparing said accumulated cost with a predetermined cost threshold limit; and

    (g) identifying said call as potentially fraudulent when said accumulated cost exceeds said predetermined threshold limit.

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