[Asterisk-Users] IAX vs SIP

Uriel Carrasquilla uriel at adelphia.net
Fri Sep 19 17:23:59 MST 2003


How do you set up IAX in Trunk mode?
Uriel

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com]On Behalf Of WipeOut .
Sent: Friday, September 19, 2003 3:49 PM
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] IAX vs SIP


> 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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