Wired as it may sound, Panasonic NCP SIP extensions does not support NAT, I order to use theses extensuon on my IPhone I have installed FreePBX as a SIP gateway (and I appriciate the other options…).
I have the extensions up and running but I am struugleing with the trunks. Both PBX’s are on the same LAN the Panasonic as 10.0.0.240 and the FreePBX at 10.0.0.241
tset sip extension on the Panasonic is 170 and the password is test
I use the following settings :
trunk name 2000
user context 170