A video conferencing terminal includes an encoder that receives a baseband
audio signal and a baseband video signal and creates compressed audio
packets and compressed audio-video packets. A network interface driver
receives the compressed audio packets and the compressed audio-video
packets, IP encapsulates the compressed audio packets and the compressed
audio-video packets, transmits the IP packets onto an IGMP network. The
network interface driver also requests audio packets and audio-video
packets from the network and recovers compressed audio packets and
compressed audio-video packets from the IP packets received from the
network. A decoder receives compressed audio packets and compressed
audio-video packets from the network interface driver and generates a
baseband video signal and multiple baseband audio signals.