| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve usability as well as eliminating a burden resulting from a centralized MCU installation by integrating a UA and the MCU. <P>SOLUTION: A call control means 2 practices call control processes such as outgoing and incoming call processes by call control protocol such as SIP. Further, a telephone call means 3 (corresponding to the conventional SIP and UA) including a microphone, a speaker, and a CODEC packetizes and sends out transmitting telephone call contents, receives, restores and reproduces received telephone call contents (a telephone call process). Besides, the present device includes also a multipoint connecting means (corresponding to the conventional MCU) 4 which connects a plurality of other devices using the call control means 2, and transmits telephone call contents between these other devices and it own device (a multipoint connecting process). <P>COPYRIGHT: (C)2008,JPO&INPIT |
