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Method and system for identifying respondent client in push-to-talk over cellular network

  • US 7,623,883 B2
  • Filed: 03/08/2006
  • Issued: 11/24/2009
  • Est. Priority Date: 03/08/2005
  • Status: Active Grant
First Claim
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1. A method for providing information of a client making a first response in a push-to-talk-over-cellular (PoC) network, the method comprising the steps of:

  • sending, by a session management server, an INVITE message to each of a plurality of clients to participate in a session to be established, when it is determined that an event meeting session establishment criteria occurs;

    receiving a first response signal to the INVITE message from one of the plurality of clients; and

    sending a message including information of the one of the plurality of clients making the first response to at least another of the plurality of clients, to request establishment of the session,wherein the INVITE message includes information on a group identity of an originating side client of a session establishment requester and information on an identifier of a network-initiated session establishment requester.

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