×

Methods and apparatus for automatic security checking in systems that monitor for improper network usage

  • US 9,047,465 B2
  • Filed: 11/22/2006
  • Issued: 06/02/2015
  • Est. Priority Date: 11/22/2006
  • Status: Expired due to Fees
First Claim
Patent Images

1. A system to mitigate improper network usage, the system comprising:

  • memory including machine readable instructions; and

    a processor responsive to the machine readable instructions to perform operations comprising;

    determining whether to issue a notification in response to an activity alert corresponding to monitored usage of a communication network by a user device, the monitored usage occurring after the user device has been granted access to the communication network;

    in response to the activity alert, initiating transmission of a session initiation protocol network-initiated re-authentication request to a voice over Internet protocol call processor to cause the user device to perform a re-authentication procedure with the voice over Internet protocol call processor;

    in response to determining the session initiation protocol re-authentication procedure was unsuccessful, initiating subsequent transmission of (i) a teardown request to the voice over Internet protocol call processor to cause the voice over Internet protocol call processor to teardown a current session initiation protocol session with the user device, and (ii) a session initiation protocol network-initiated de-registration request to the voice over Internet protocol call processor to cause a session initiation protocol de-registration procedure to be performed to de-register the user device from the voice over Internet protocol call processor; and

    causing the notification to be issued in response to the activity alert if both the session initiation protocol re-authentication procedure and the session initiation protocol de-registration procedure are unsuccessful, but not if at least one of the session initiation protocol re-authentication procedure and the session initiation protocol de-registration procedure are successful.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×