LAN based real time audio-graphics conferencing system

LANBRETA-GCS, an LAN-based real-time audio-graphics teleconferencing system, is presented. The environment which the system is being implemented is introduced, and the specification decisions are justified. Although LANBRETA-GCS is being implemented in a local area network environment, utilizing an IBM token ring and the functions of DOS, NETBIOS, and the PC LAN program, its implementation is much more general. The organization of the system, to handle conferencing groups or individual messages, is described.<<ETX>>