With vendors coming out with high-definition teleconferencing for individual users, it is possible for a person to join a telepresence session by himself, but that changes the dynamic as well, Stucki says. Some customers report that if participants in a group room know a lone participant is located in the same building, they ask that person to come over to the same room.

Other practical findings include the importance of keeping latency low so people don't talk over each other. It's also important to frame participants to show their upper bodies, not just their heads. Otherwise people on the other end can't read their body language, something that adds to the quality of a telepresence call, he says.

in Network World's LANs & Routers section.