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AVAILABILITY DETERMINATION OF A PARTY TO RECEIVE A CALL PRIOR TO CALL SETUP

  • US 20090006528A1
  • Filed: 06/27/2007
  • Published: 01/01/2009
  • Est. Priority Date: 06/27/2007
  • Status: Abandoned Application
First Claim
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1. A method of operating a communication device of a subscriber to determine the availability of a target party to receive a call prior to call setup, the method comprising:

  • identifying an initiation of a call to a target party;

    transmitting an availability request message to a presence server responsive to the call initiation and prior to call setup wherein the availability request message requests the availability of the target party to receive the call;

    receiving an availability response message from the presence server indicating the availability of the target party to receive the call; and

    displaying the availability of the target party to receive the call.

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