It is also possible to include sites linked by an ISDN line, using a gateway. The lead site should book the network, with each site booking their own local studio. Informal communication would normally use desk top systems. More formal meetings with several participants at each site would probably use dedicated studio settings. Collaborative work between researchers using shared applications Presentations Education.
Teaching usually involves one to many connections.
The student sites may receive audio and video but only send audio. The system is used mostly to link students with tutors, small group meetings between different sites, and informal contact between dispersed colleagues. Students at remote sites can view operations being carried out in a specially equipped operating theatre. This not only allows students access to the best clinical teachers and a larger pool of patients, but also reduces infection risk in the theatre. Since staff from the two sites need to meet regularly this arrangement saves a great deal in travel time and costs.