Patents Represented by Attorney, Agent or Law Firm Jenkens & Gulchrist
  • Patent number: 6295446
    Abstract: An apparatus for detecting fraud in a radio network includes a Mobile Station (MS) having a nonvolatile memory to store an electronic identification number and a first calling event table. The invention also includes a Mobile Switching Station (MSC) or Home Location Register (HLR) having a second calling event table that contains a mirror image of the first calling event table (if no fraud has occurred). Each calling event table contains outgoing call event data for the MS. The invention also includes a method for detecting fraud in a radio network comprising the steps of retrieving calling event data from the MSC for the MS; querying the MS using the retrieved calling event data; sending a response message from the MS to the MSC; comparing the query data to the response message; and detecting fraud if the calling event data does not match the response message.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: September 25, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Roberto Rocha