So, assuming your Asterisk box is behind one firewall (Linksys/Tomato
Software) and your Wireless SIP phone is behind another firewall
(SonicWall 1260 Enhanced). Is there anything special that I have to do
to the firewalls. I do have the Asterisk firewall configured to work
(ports 5060 & 10001-20000). But I’m not sure about the other end. Do I
need STUN at the SIP Phone end? Do I need to make sure that any
particular ports are open. Anybody have specific experience with
setting a SonicWall up so that local SIP phones will work.
The Specific phone is a D-Link DPH-540 (WiFi). But it would be nice to
allow more standard SIP phones like the SPA942 etc.