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Detection of fraudulently registered mobile phones

  • US 5,953,652 A
  • Filed: 01/24/1997
  • Issued: 09/14/1999
  • Est. Priority Date: 01/24/1997
  • Status: Expired due to Term
First Claim
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1. A method of detecting fraudulent use of a mobile station in a wireless telecommunications network, the mobile station having, a unique identifier associated therewith, the method comprising the steps of:

  • determining at least two actual elapsed time periods between successive registrations associated with the unique identifier of the mobile station; and

    detecting a suspected fraudulent event when the actual elapsed time periods between successive registrations are substantially non-periodic.

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