real.
             One point of uncertainty continues to be the wide area network (WAN) vs. local area network (LAN) situation. Most videoconferencing products still run on WANs, but packet-switched LANs are widely installed in the corporate world. Today, there are no established standards for video over the LAN, unlike the H.320 standard for switched- circuit networks, though this is expected to change soon. Hence, LAN-based videoconferencing today provides no level of interoperability among vendors. Furthermore, with today's installed base of Novell and TCP/IP networks, video traffic quickly brings the network to its knees. LAN-based videoconferencing was not a particularly high concern for the respondents in the Forward Concepts survey, despite the fact that most of the respondents worked in large companies. In contrast, the quality of audio was consistently rated a high concern.
             Users are interested primarily in conferencing with remote colleagues. Intra-building and intra-LAN communications are o
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