[Asterisk-Users] iax2 on a server behind a linux based stateful firewall

[Sean Kennedy]

Hi all,

I've got an * sitting behind a linux iptables firewall.  I have an 
account with teliax.  After entering the registration information 
accurately and restarting *, iax2 show registry shows a registered 
status on that connection.

However, whenever I try to place a call, I get a "No one is available to 
answer at this time (1:0/0/0)" status returned from the dial attempt. 

When the same account is used on the firewall ( which I installed * to 
test this ), it works just fine.

`tcpdump -i eth1 host voip-co2.teliax.com` on the trouble box shows 
packets coming and going to teliax without a problem.  So I'm sort of at 
a dead end on how to figure this out.  Everything looks like it's 
registered, and packets are flowing to the box and the box is able to 
get out ok.  But for whatever reason, my calls aren't being completed.

Can anybody give me another idea of where to look for the problem?

Sean