摘要 |
<P>PROBLEM TO BE SOLVED: To shorten communication time when a plurality of pieces of data are transmitted by use of SIP. <P>SOLUTION: When a CPU 1-1 transmits a plurality of pieces of data different from each other to a destination device, it transmits a connection request message to request a plurality of media sessions. When the CPU receives a connection response message from the destination device, the CPU will determine whether or not the plurality of media sessions have been permitted from the connection response message. If the plurality of media sessions have been permitted, the CPU will establish the plurality of media sessions, and transmit each of the plurality of pieces of data to the destination device by each of the media sessions. <P>COPYRIGHT: (C)2013,JPO&INPIT |