I have a situation where I am using a dual IP - two IP on asterisk one IP is dedicated to SIP trunk server whereas the other one is connected to LAN.
The phones are registered to LAN IP: 192.168.X.X
Where is the SIP trunk is communicating via : 172.29.X.X to the SIP server.
The incoming call is working fine as SIP server is able to point to 172.29.X.X
But when I am sending out calls to the SIP server. My SIP invite contains 192.168.X.X as result I am getting SIP 503 service unavailable. Is there a way when sending SIP invite I can use 172.29.X.X.
The phones will always be register to 192.168.X.X