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Unread postPosted: Fri Mar 25, 2011 3:52 am 
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I found this article about video conferencing systems in my old BYTE collection. The two pages below discuss SGI's InPerson video conferencing system. Has anyone used this? Any references or pointers on how to get it going on a LAN with Indy(s)?


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Unread postPosted: Fri Mar 25, 2011 4:55 am 
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Never used it, but it looks like TechPubs has some documentation on the subject:
InPerson User's Guide
InPerson Setup and Administration Guide

and the man page for InPerson 2.2.1 (for IRIX 6.5) lists minimum hardware requirements:
Code:
InPerson 2.2.1 runs on all systems with graphics that are supported by IRIX 6.5. InPerson's whiteboard only runs on systems with graphics and overlay planes. The audio conferencing features are supported only on audio-capable systems:  O2, Indy, Indigo2, and Indigo. A microphone is required, and headphones are useful in some environments. Video hardware is not required; static images can be used instead of live video. IndigoVideo hardware for Indigo LG1 graphics, also known as Starter video, has not been supported since IRIX 6.2, and is not supported by InPerson 2.2.1.

The InPerson Option board and its driver software (known as indycomp) is no longer supported in IRIX 6.5, nor by InPerson 2.2.1.

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Unread postPosted: Fri Mar 25, 2011 4:57 am 
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Thanks, Recondas! Once I am done with the current set of projects, getting InPerson running on a couple of my Indys would be a nice experiment to do...

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Unread postPosted: Fri Mar 25, 2011 7:27 am 
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I tried it with colleagues using Indys (and later, O2s) in the mid/late 90s. By today's standards, it's not that big of a deal at all, but in 1996, it was jaw-droppingly cool, even on unswitched 10Base-T ethernet.


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Unread postPosted: Fri Mar 25, 2011 7:30 am 
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hmmm wonder if can use in O2 using Video IN and Mic as inputs with some tweaks :)

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Unread postPosted: Fri Mar 25, 2011 7:31 am 
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Good to know, Jose. My primary motivation would be to relive the thrill... Hardly anything is a big deal nowadays and that, perhaps, has robbed us of a lot of fun and excitement.

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Unread postPosted: Fri Mar 25, 2011 2:47 pm 
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Can it work with Skype or modern conferencing implementations?


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Unread postPosted: Fri Mar 25, 2011 3:49 pm 
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johnsmith wrote:
Can it work with Skype or modern conferencing implementations?

Totally different protocols, unfortunately.

You can use SGI's later SGImeeting with Microsoft NetMeeting and, IIRC, Lotus Notes/Sametime, but it needs a license.


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Unread postPosted: Sun Aug 21, 2011 10:43 am 
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Hi,
Not that I have the time to do this right now but I was lead to believe that SGIMeeting and the other apps mentioned above use H323 which is the precursor to SIP. Lots of older phone equipment uses H323. And many PBX systems like Asterisk have connectors for basic H323 endpoints and can interoperate the audio and session management with SIP endpoints.

I did look into this briefly. H323 had a video standard and a video signalling session. But I don't think a lot of the free PBXs have code to support this (I could be wrong here). With Microsoft netmeeting I seem to remember that the directory likely wouldn't work and extra desktop features wouldn't work but you could type in a Proxy and it would register and then you could type in handles and make calls. No whiteboard features or whatever were supported though.

There might be merit to wire sniffing older compliant programs and see what they actually say for the shared features, they might have all used the same signaling to be intercompatilbe at the time? If that's true an update to the openH323 project or something could be made to make up the difference. If you pulled it off right you could have a small asterisk server at home and register your H323 endpoints to it where you could then enter dial strings and make outbound PSTN or sip calls...and use carriers like Vonage or the like. This has a good chance of working if your proxy registration to the H323 emulation basically works for audio and session management.


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