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Routing messages

  • US 9,031,067 B2
  • Filed: 10/15/2012
  • Issued: 05/12/2015
  • Est. Priority Date: 02/19/2003
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • at least one processor; and

    at least one memory embodying computer program code, the at least one processor, the at least one memory, and the computer program code configured to cause the apparatus to at least;

    perform a call session control function in accordance with a session initiation protocol, the call session control function having a first mode to provide a serving call session control function, and a second mode to provide an outbound proxy function to cause routing of an application server originated session to another network,wherein at least one of the first mode and the second mode is selected by the call session control function in response to information of a public service identity in an initial session initiation protocol request received by the apparatus from the application server.

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