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UNAUTHORIZED CALL ACTIVITY DETECTION IN A CELLULAR COMMUNICATION SYSTEM

  • US 20090163173A1
  • Filed: 06/08/2006
  • Published: 06/25/2009
  • Est. Priority Date: 08/05/2005
  • Status: Abandoned Application
First Claim
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1. An apparatus for detection of unauthorized call activity in a cellular communication system, the apparatus comprising:

  • means for receiving call log data from a cellular subscriber unit having an associated subscriber identity over an air interface communication link;

    means for receiving subscriber unit specific billing data from a billing processor of the cellular communication system;

    detection means for detecting an unauthorized call activity for the associated subscriber identity in response to a comparison of the billing data and the call log data.

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