| 摘要 |
A METHOD OF PROVIDING A MULTICAST SERVICE ANNOUNCEMENT USING A HYPERTEXT TRANSFER PROTOCOL FOR SENDING A SERVICE ANNOUNCEMENT FROM AN ANNOUNCEMENT SERVER TO AT LEAST ONE RECEIVING NODE, THE RECEIVING NODE COMMUNICATING ONLY WITH SAID ANNOUNCEMENT SERVER TO ACCESS SAID SERVICE ANNOUNCEMENT. THE ANNOUNCEMENT SERVER PERIODICALLY CHECKS FOR SAID SIGNALING MESSAGE FROM SAID SENDING NODE. THE SAID HYPERTEXT TRANSFER PROTOCOL ANNOUNCEMENT IS ABLE TO COMMUNICATE WITH A REAL-TIME TRANSPORT PROTOCOL ASSOCIATED WITH MULTIMEDIA STREAMS.
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