[Asterisk-Users] SPA and NAT traversal

[Jim Sturtevant]

I was hoping someone might help me diagnose a NAT issue with an SPA-2000 and
my * server.  

My SPA is behind a NAT accessing a server which is also behind a NAT but SIP
and RTP ports are forwarded to it.

My SPA can successfully register.  It can call another extension which is
inside the * local net and the inside phone can call the SPA.  But, no
speech path either way.  I have NAT=YES and the two invite parameters are
set to NO.

Thoughts?