|PPNCG Information Pages : Video-conferencing : Desktop videoconferencing recommendations (PPNCG)|
|The second edition (now distinctly dated) of the PPNCG's recommendations for desktop-based videoconferencing is available at
It is by now VITAL that you read the notes linked below
(Notes to the 2nd Edition PPNCG recommendations ) before relying
on anything you read in those earlier recommendations.
Note that all the 'business-class' solutions known to us are based on Windows operating systems (whether 9x, NT, 2K ...), and users pretty much have to live with that. I would recommend installing an X server such as eXceed or Cygwin/X, so that you can also access your favourite Unixoid systems - and, where data sharing is in use, can also share those windows with other participants.
In addition to the kit mentioned below, of course you are expected to
supply a suitable PC with a suitable operating system.
|To add versatility (and confusion) to the mix, however, there _is_
also the VRVS, http://www.vrvs.org
which allows interworking between users of the IETF software-based
videoconference protocols (vic, rat...) and users of H.323.
When using the IETF software-based protocols (with vic and rat
as distributed by the VRVS project) you would want a camera of a
type which is supported by your OS's multimedia layer.
This might be a web-camera (nowadays often USB-connected), or
for somewhat better quality a PCI-based video capture card and
|The Polyspan "SoundPoint/PC" is an inexpensive accessory that's well worth
getting with any PC-based videoconferencing arrangement.
It's a sort-of "speakerphone", with a built in echo canceller,
specifically for use with PC audio.
In Glasgow we have several of these, and they are well-used.|
2003-Dec-11 14:42 firstname.lastname@example.org
|ONGOING ISSUE - new software-based H.323 applications
There are now some new software-based solutions becoming available based on the OpenH323 implementation. For example GnomeMeeting.
Software codecs are generally considered to be unacceptable in "business class" multipoint meetings: at any rate, users are cautioned not to attempt to use them without due liaison with whoever manages the H.323 MCU that is to be used. (In the case of point to point meetings you can obviously argue the acceptability issue with your partner site...)
VRVS users in such a situation would be better advised, we think, to use the IETF-protocol applications i.e vic and rat, rather than trying to use the VRVS's H.323 compatibility mode and their software-based H.323 client.
Having made those general remarks, however, it does seem as if
GnomeMeeting is developing a good reputation, and consent for
pilot use on ESnet ad-hoc H.323 has been granted.
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