[Asterisk-Users] Asterisk, SIP phone , NAT

[Dr. Michael J. Chudobiak]

> nat=yes
> qualify=yes

That works, but it works better if you use a NAT/firewall box that can 
do "VOIP transformations" automatically. The Sonicwall TZ170 can do 
this. It rewrites the packets auto-magically so things "just work". The 
above parameters can be set to "no" then.

It seems to work more reliably that way, in my experience.


- Mike