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Interface call signaling protocol

  • US 20050286542A1
  • Filed: 08/25/2005
  • Published: 12/29/2005
  • Est. Priority Date: 12/18/2003
  • Status: Abandoned Application
First Claim
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1. An interface call signaling protocol for a communication system, using an internet protocol (IP), the interface call signaling protocol comprising:

  • an INVITE request field;

    the INVITE request field including;

    a user identification extension having direct routing information;

    a server identification extension having a network address; and

    a subscriber data base flag for indicating a table access is performed.

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