[Asterisk-Users] Re: Strategy for a stable IAXy

[Eric Wieling]

Anton Krall wrote:

> How do you make SIP work behind NAT without having to change anything on the
> firewall for example, those cable modems....
> 
> So far, Ive tested this using softphones and only iaxphone has been able to
> work using IAX, eye lite or something for FWD that uses SIP says it cant
> connect to the provider... 
> 
> So, which way to go? IAX or SIP? IAXy or Sipura?
> 
> All ip phones use SIP right? 

Generally you just set nat=yes, canreinvite=no, and qualify=yes in 
sip.conf and that's it.  No need for STUN or any of that other crap. 
This assumes that Asterisk is on a public IP, of course.