[asterisk-users] Re: SIP v IAX2

[Tim Panton]

On 27 Oct 2006, at 16:42, Roberto Pereyra wrote:

> Hi
>
> 	
> Which is most resistant to the loss of packages in a dirty link ?  
> SIP or IAX ?

Well there isn't much in it at the protocol level, at least in terms  
of the
odd packet being lost. IAX does have an advantage when it comes to
the link dropping completely.

IAX will detect total packet loss (in either direction) and hang up  
the call
after about 30 seconds. SIP can often not notice the RTP stream has
died (esp if the control channel is still up) leaving you with half a  
call
hanging around.


Tim Panton

www.mexuar.com