[Asterisk-Users] Multiple IAX Phones Behind NAT

[Rich Adamson]

> Ok, I've seen this question go unanswered on the mailing list, and I assume it's because no 
one had the heart to break the bad
> news to the guy asking, but be honest with me, I can take it.  At this time it's flat 
impossible to have multiple IAX phones
> behind a NAT without using an * gateway because there's no way to have a client listen on a 
port besides 4569.  Is my only
> option to learn about SIP and attempt to forward that through my NAT?

Multiple iax phones behind a nat box is known to function correctly.
However, some nat boxes do not properly handle this. The easiest way
to analyze the problem is to use a packet sniffer (eg, ethereal) on
the outside of the nat box to see what it's doing to you.