MULTI-POINT CONFERENCE SYSTEM, DIRECTORY SERVER AND CONFERENCE TERMINAL

摘要

PROBLEM TO BE SOLVED: To eliminate the need for a conference server on which video voice data are concentrated and a broadband channel required for the conference server and attains efficient multi-point conference.;SOLUTION: A directory server which manages cross-reference between a user ID and a network address (attribute information) such as an IP address and a telephone number is provided onto a network and each conference terminal directly makes communication with other conference terminals not through the directory server by using the network address notified from the directory server.;COPYRIGHT: (C)2003,JPO