OpenMCU is a H323 Multipoint Conference Unit.

It allows several people to take part in the same Video Conference or
Internet Phone Call (VoIP) when using program using the H323 protocols.

Applications using H323 include OpenH323, OhPhone, GnomeMeeting
and Microsoft's NetMeeting.

It makes use of PWLib and the OpenH323 stack from Equivalence Ltd Pty

WWW: http://www.openh323.org/