| 摘要 |
PROBLEM TO BE SOLVED: To obtain a multi-subscriber call system, wherein the mixing of audio streams from a plurality of terminals is effected with high efficiency, a call terminal and server in the talking system between multiple persons and talking method among multi-subscribers. SOLUTION: When a voice having a capacity bigger than a set value is inputted, a call terminal checks whether a mixing condition is already established between a call server. When the condition is not established, a SPEAK message is transmitted to request the establishment of the mixing condition to the call server. When the mixing condition can be established, a RTP (real-time transport protocol) packet is transmitted to the call server. When the voice has not been inputted into the talking terminal for a given period of time, the call terminal transmits a MUTE message to the call server, and the mixing condition is terminated. COPYRIGHT: (C)2007,JPO&INPIT
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