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Unauthorized Call Activity Detection And Prevention Systems And Methods For A Voice Over Internet Protocol Environment

  • US 20110110367A1
  • Filed: 01/14/2011
  • Published: 05/12/2011
  • Est. Priority Date: 04/13/2006
  • Status: Abandoned Application
First Claim
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1. A method for providing call processing in a prison facility, comprising:

  • receiving a request to place a call from a terminal accessed by a calling party in the prison facility;

    connecting the call to a called party outside the controlled-environment facility via a Voice over Internet Protocol (VoIP) gateway between the terminal and a phone network; and

    detecting three-way call activity in the call by monitoring VoIP signals transmitted between the VoIP gateway and the terminal.

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