What is H.323? ...and does ichat3 comply?

I am a teacher working in U.K and connect to internet at work through a confounded proxy server that really messes with my mac (only way to connect to internet is with firefox! safari crashes!!) my proxy settings are all correct using a https server.... anyway contacting the powers that be they tell me they no nothing about macs and ichat (surprise) and does it comply with H.323 which is what they're going to use for video conferencing, i have been trying to get them to open the ports up for ichat to work for a year now to no avail! any ideas?
many thanks
rob appleby

Posted on Aug 22, 2005 10:19 AM

Reply
8 replies

Aug 22, 2005 3:18 PM in response to Rob Appleby

HI Rob,

There are schools in the UK using iChat. Some of them have used it to speak to the Space Station and do joint projects with schools overseas.

With a Local Authority Network you are likely to have a Static IP address.

It is then a question of getting them to open the ports.

If you point out that the AIM application on a PC can need ports 1024-5000 (nearly 4000 ports) open and iChat will need only 23 to chat to other people offsite, you may have more luck.

If you have a Mac Lab then you may need three more ports open for the Bonjour side of things.

Ports:
5190 to allow you to Log on and Text chat and send files
Needs TCP and UDP protocols if they need to be stated.

5060, 5678, 16384-16403 ON UDP to AV chat

5297, 5298, 5353 on UDP with 5298 on TCP for Bonjour.

You may have more luck if you Local Authority also has a University that uses the JANET server and has Halls of Residence that allows students access to the internet.

Ralph

Oct 11, 2005 1:20 PM in response to QuickTimeKirk

I, too, was hoping I could use iChat or iChatAV with H.323. It's a widely-used standard for videoconferencing in distance education. I recently agreed to do something for a colleague's class at another university (Purdue), and I asked the I.T. help there about using an iSight on my Mac. He said H.323 didn't work with iSight or iChat. I checked out Kirk's reference to the "open323" effort, but I couldn't find anything that related to Mac OS. I'm wondering why Kirk referred us to this site? Did I miss something? It looks like a wonderful thing, but of no help to Mac users, unless I missed something. Also, I couldn't find any mention of "323" or "Polycom" (commonly used H.323 equipment for classrooms) on Apple's iSight and iChat help pages. So, there seems to be nothing on the openSource front and nothing from Apple for people that need to communicate using H.323 because the institution they are working with uses it (not our own ISP).

I vaguely recollect that H.323 is a proprietary Intel format. I wonder if Apple will be able to work with it soon. I hope so, because this is a major gap, with worldwide marketing impact for Apple, not just U.K. or U.S.

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What is H.323? ...and does ichat3 comply?

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