[JDEV] Videoconferencing with jabber / Re:[speex-dev]Videoconferencing with speex and jabber

Tijl Houtbeckers thoutbeckers at splendo.com
Tue Nov 25 11:53:04 CST 2003

On Tue, 25 Nov 2003 17:14:04 +0100, Ulrich B. Staudinger <us at die-horde.de> 

>> > I would even say it's the minority of cases where NAT problems can be
>> > solved.
>> Check the last few messages in the "My IP address" thread on SJIG,
>> particulary the post made by Jesper Krogh.
> Checked and read already. Thanks for the hint again. As Jesper clearly
> points out, there are NATs which don't support this approach.

True.. but if it works with linux (the page is from before the 2.4 NAT 
implementation but there's a good chance it will) and with windows 
internet-sharing you've probably got the majority of cases where your NAT 
problems are solved. (Still provided you get the external IP address of 
your gateway from somewhere).

>> It's not a bad idea anyway to use UDP for voice data in a lot of cases,
>> even if you're in conference mode.
> UDP is ok if it works. Anyway there must be a central server to solve
> all those other issues. The discussion's not about UDP or TCP it's about
> P2P or central server. and p2p is simply not practical - due to
> encoding/decoding delays, traffic restrictions on client side, etc.

Both P2P and server-side solutions (espc. in the case of conferencing). 
For a central server it'd still be nice to have a UDP solution, espc. once 
we take it beyong voice and add video, start thinking about multicasting, 

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