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Method and system for establishing session for message communication between converged IP messaging service client and short messaging service client

  • US 8,060,621 B2
  • Filed: 11/13/2007
  • Issued: 11/15/2011
  • Est. Priority Date: 11/13/2006
  • Status: Expired
First Claim
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1. A method of establishing a session for interactive message communication between a converged Internet Protocol (IP) messaging client and a non converged IP messaging client in a converged IP messaging service system, the method in the converged IP messaging system comprising:

  • receiving a session establishment request message for the interactive message communication from a converged IP messaging client;

    determining whether a target client of an interactive message supports a converged IP messaging service on the basis of the session establishment request message; and

    if it is determined that the target client is a non converged IP messaging client supporting a non converged IP messaging service, requesting, to an Inter-Working Function (IWF), changing the session establishment request message to an interactive message communication request message which can be received by the non converged IP messaging client,wherein the IWF transmits the interactive message communication request message including an acceptance request to the interactive message communication, to the non converged IP messaging client, when the IWF receives the request for changing the session establishment request message, the IWF receives the session establishment request by receiving a Session Initiation Protocol (SIP) INVITE message, which was transmitted from the converged IP messaging client, from a converged IP messaging server, the IWF determines by searching subscriber information of the target client of the interactive message communication that the target client of the interactive message communication is the non converged IP messaging client, the IWF generates a Short Messaging Service (SMS)-SUBMIT message in which a sentence indicating the interactive message communication request and one of a response directive and key information, which must be input by a user of the non converged IP messaging client in response to the interactive message communication request, are contained in response to the SIP INVITE message, and the IWF transmits the SMS-SUBMIT message to the non converged IP messaging client via a non converged IP messaging server.

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