Abstract
4-Point Discussion Space System, a virtual space which connects four remote institutes, has been constructed at Communications Research Laboratory (CRL) as part of the Multimedia Virtual Laboratory (MVL) project. In this system CRL, the University of Tokyo, Tsukuba University and National Institute of Multimedia Education (NIME) are connected with 75Mbps ATM networks. By reproducing eye contact and voice directions, the constructed virtual space presents an environment where four people in four different institutes can have natural conversation with one another as if they are in the same room.