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System and method for detection of redial fraud in a cellular telephone system

  • US 5,924,025 A
  • Filed: 10/25/1996
  • Issued: 07/13/1999
  • Est. Priority Date: 10/25/1996
  • Status: Expired due to Fees
First Claim
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1. A system for the detection of repeat wireless telephone fraud, the system comprising:

  • signature analysis means for identifying a particular wireless telephone a fraudulent based on an initial telephone transmission from said fraudulent wireless telephone;

    a timer to determine a time at which said initial telephone transmission from said fraudulent wireless telephone occurred;

    an identification storage area to store an identification number transmitted by said fraudulent wireless telephone;

    an origin data storage area to store data related to a place of origin of said initial telephone transmission from said fraudulent wireless telephone;

    a destination data storage area to store destination data associated with an intended recipient of said initial telephone transmission from said fraudulent wireless telephone; and

    a processor to analyze a subsequent telephone call from an unauthenticated wireless telephone, said processor denying said subsequent telephone call if said subsequent telephone call is placed within a predetermined period of time from said time of said initial telephone transmission, if a transmitted identification from said unauthenticated wireless telephone matches said stored identification number, if a place of origin of said subsequent telephone call matches said stored place of origin, and if destination data associated with an intended recipient of said subsequent telephone transmission from said unauthenticated wireless telephone matches said stored destination data.

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