| 摘要 |
<P>PROBLEM TO BE SOLVED: To transfer data between two communication parties in an NGN with communication quality secured therein. <P>SOLUTION: A SOAP-SIP adapter 2 establishes a session with terminals 5b and 5c in accordance with a SIP. At this point, the SOAP-SIP adapter 2 sends an INVITE message including its own IP address and port number to the terminals 5b and 5c. Each terminal 5b, 5c sends a 200 OK including its own IP address and port number to the SOAP-SIP adapter 2. The SOAP-SIP adapter 2 associates and stores the IP address and port number of each terminal 5b, 5c in a memory. The SOAP-SIP adapter 2 transfers a media stream received from each terminal 5b, 5c to a destination of the associated IP address and port number by referring to the memory. Also, a pseudo RBT is sent to a terminal A5b to prevent a silent state in a duration from session establishment with the terminal A5b to session establishment with a terminal B5c. <P>COPYRIGHT: (C)2010,JPO&INPIT |
