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Method and apparatus for fraud control in cellular telephone systems

  • US 6,185,416 B1
  • Filed: 05/30/1996
  • Issued: 02/06/2001
  • Est. Priority Date: 06/29/1993
  • Status: Expired due to Term
First Claim
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1. A method of preventing fraudulent calls in a cellular telephone system, comprising the steps of:

  • (a) generating a behavior profile for a cellular phone, wherein the behavior profile comprises one or more characteristics selected from a group comprising;

    (1) any calls by the cellular phone to a known phone number previously called by one or more other fraudulent cellular phones, and (2) any calls by the cellular phone to a known fraudulent cellular phone;

    (b) identifying the cellular phone as fraudulent based on the behavior profile and updating a validation database based on the identification; and

    (c) accessing the validation database during a call origination from the cellular phone and preventing the call from completing when the validation database indicates that the cellular phone is fraudulent.

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