Abstract
We describe several recent videoconferencing
experiments and deployments. An extensive literature has
shown limited benefits from video in support of live
meetings. However, technical, cost, and behavioral shifts
suggest that new opportunities are emerging. To
understand the prospects requires careful differentiation
among videoconferencing configurations along
dimensions such as point-to-point vs. multi-point,
conference rooms vs. offices, and ISDN vs. IP. Behavior
can be affected in ways that are not always intuitive. Still,
declining costs, increasing ease of use, and growing use
of personal video are having an impact. Will the new
generation of IP-based videoconferencing overcome past
obstacles to wider use of video? We review the challenges
and opportunities and emerge with guarded optimism
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