[asterisk-users] Asterisk for larg

Grey Man greymanvoip at gmail.com
Sun May 4 03:39:30 CDT 2008


>  Can you some reasons for this? Would interest me a lot why SIP is better
>  in a large Enviroment. than IAX.

Because with IAX you cannot separate the signalling and media
resulting in a complex scalability problem.

With SIP you can deploy a SIP Proxy and level load calls across as
many Asterisk servers as you like. For fault tolerance you can add
another SIP Proxy or an IP load balancer in front of your SIP Proxy.
With IAX you can't do any  either of those (at least not easily, there
is no equivalnet of a stateless SIP Proxy with IAX) since every call's
signalling and media path is tied to each IAX server it passes
through. The only way to scale IAX is to get a bigger server.

Regards,

Greyman.



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