Extension to CORBA event service for a conference control system

Conferencing applications require an efficient conference control service. This paper introduces the main features of a conference control service based on the CORBA event service using the Java platform, under development at the Communications and Telematic Services Group of the University of Coimbra. This framework is based on the ITU T.120 recommendations, with reliable multicasting communication for both data and control information. The control service extends the CORBA Event Service architecture with mechanisms for reliable IP multicast communication, with total ordering of the events transmission, filtering and fragmenting/reassembling of large messages