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The INRIA Videoconferencing System IVS is designed with the explicit goal to
demonstrate that it is possible today to use a standard workstation for 
video-/audioconferences. Thus, in order to conduct a videoconference with IVS,
only minimal hardware upgrades are required to a machine commonly found 
today on the desk of an engineer (a Videocamera and a Videocard).

A further design goal of IVS is to allow more than two persons to conduct a
videoconference using IP multicast extensions. Thus, with IVS, a
group of people can participate at a conference at the same time.

IVS allows to use standard Internet technology to transmit 
video/audio-data. This is achieved by implementing a software version of a 
H.261 codec (video codec for audiovisual services at p*64 kb/s) in IVS. 
Furthermore, where conventional H.261 hardware codecs require leased lines or 
switched circuits for data-transmission, the H.261 software codec of IVS uses 
standard UDP datagrams.

This system has been already tested over many countries including 
France, Germany, Sweden, the Nederthlands and the USA.

The following also contributed to the development of IVS:

David Berry <David.Berry@eng.sun.com> (Videopix grabbing improvement)
Jack Jansen <Jack.Jansen@cwi.nl> (ADPCM 32kb/s audio codec)
Guido van Rossum <Guido.van.Rossum@cwi.nl> (SGI Indigo compatibility)
Winston Dang <wkd@uhunix.uhcc.Hawaii.Edu> (speed improvements)

Technical Data
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System requirements: SUN SparcStation or SGI Indigo stations, 
       Video grabber (VideoPix Card for SUN stations), Video
       Camera, X-Windows, Internet-Access.

ftp adress: Version 1.10 of IVS is available for anonymous ftp from 
	avahi.inria.fr in directory "/pub/videoconference/ivs.tar.Z".


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   Thierry Turletti.

   Project RODEO - INRIA Sophia-Antipolis - FRANCE