[Asterisk-Users] Re: tunnel iax via gnophone with ssh?

Steven Critchfield critch at basesys.com
Thu Nov 20 17:18:30 MST 2003


On Thu, 2003-11-20 at 15:44, Chris Hirsch wrote:
> Reinhard Max wrote:
> 
> >Asterisk uses UDP, but ssh can only forward TCP ports.
> >
> >  
> >
> Ahhh something I completly missed...that makes sense because I tunnel 
> lots of other things...Are there other protocols that are TCP instead?

No, the difference in voice as opposed to files transfers is that voice
can survive drop outs and a file can not. UDP allows packets to be
dropped and will continue running where as TCP requires all packets make
it to the end point. If a packet is lost, you have delay while the
packet is retransmitted.
-- 
Steven Critchfield <critch at basesys.com>




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