> I wonder how IAX compares to SIP bandwidth-wise? I've tried both over
> overseas IP connection, and somehow SIP seemed to work better.
> 
> Peter
> 

Then try making two or three or more calls at the same time.. :)

If you setup IAX in trunk mode it uses the same connection for multiple voice streams 
and so optimises the bandwith usage by reducing the overhead per voice channel.. SIP 
can't do that..

Also IAX does not care about NAT so a situation like..
AST<-->NAT<-->Internet<-->NAT<-->AST
..will work fine.. SIP will have problems in a setup like this without the use of 
specialised NAT routers..

Later..



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