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System and method for transmitting system messages insession initiation protocol

  • US 9,043,394 B2
  • Filed: 08/11/2006
  • Issued: 05/26/2015
  • Est. Priority Date: 08/12/2005
  • Status: Expired due to Fees
First Claim
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1. A method for transferring system messages using Session Initiation Protocol (SIP) of a client terminal in a system for providing communication service using the SIP, comprising the steps of:

  • receiving a system message request from a server;

    making up a system message response corresponding to the received system message request by introducing a feature tag distinguishing the system messages from general SIP messages and a Multipurpose Internet Mail Extensions (MIME) content type indicative of a format of a message included in a message body of an SIP message into a message header of the SIP message, and introducing a system message response document describing content for responding to the system message request in the message body of the SIP message; and

    transmitting the system message response to the server.

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