The ReLaTe (Remote Language Teaching) tool
combines in a single panel the audio, video, and
whiteboard tools of the UCL Networked Multimedia
Research Group. Currently, up to eight people can
take part in a session.
SDR is a session directory tool designed to allow
the advertisement and joining of multicast
conferences on the Mbone. It was originally
modelled on sd written by Van Jacobson at LBNL,
but implements a later version of the session
description protocol than sd does.