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Distributing a policy decision function in an IP multimedia subsystem

  • US 20070162599A1
  • Filed: 01/11/2006
  • Published: 07/12/2007
  • Est. Priority Date: 01/11/2006
  • Status: Abandoned Application
First Claim
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1. An Internet Protocol (IP) Multimedia Subsystem (IMS) comprising:

  • a logical Policy Decision Function (PDF) component comprising a plurality of physical PDF network elements; and

    a front end node operable to determine which one of the plurality of physical PDF network elements is an intended recipient of a message by using identification information in an authorization token portion of the message.

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