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Video Conferencing Recommendations
The GPDN sites will meet regularly via video conferencing to
minimize the costs associated with travel. Video conferencing will also be used
on an ad hoc basis for diagnostic collaboration between labs.
Even though the ITU H.323 standard allows many different
equipment manufactures to build seemingly compatible video conferencing units
there are many audio and video compression algorithms that are being used. In
the pursuit of compatibility and audio/video quality we recommend that all
sites within the GPDN region standardize on Polycom ViewStation128 and
ViewStationFX models.
When setting up video conferencing at your site it is very
important to coordinate with your IT team that provides router programming
services. Quality of Service (QOS) features if enabled on your routers
and switches will prevent web and email traffic from affecting your audio and
video quality.
The ViewStation128 is approximately half the cost of the
ViewStationFX but ViewStation128 is still a very capable unit. The max bit rate
for the ViewStation128 is 768k bps (bits per sec) while the max bit rate for
the ViewStationFX is 2048k bps. The bit rate is directly proportional to the
video quality. However, unless you have a ViewStationFX at BOTH ends of the
conference you will be limited to 786k bps max anyway. All regional meetings
will be held at 384k bps, the defacto standard.
Plant Diagnostic Information System Version:3.2.3153.14663
© 2003-2004 Kansas State University Research and Extension
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