
I have these two stun servers in the Stun Server Option of my PBX

Let me tell you something I can see in the Server Status. If I call my PBX from outside, I get the first tone, and then when somes picks it up, the call is disconected (cut). But the problem is when I try to receive inbound calls. Then If I try to make outbound calls I can do them perfectly, no problem. If I perform the firewall check, it passes and I can see in the results that ports 9000-9015 are ready for communications. I have configured the router2 following the FAQ about the "Why does 3CX require static port mappings (Full Cone NAT)?" so I have opened ports 9000-9015 / port 5060 port 5090 and port 3478 as it is defined in the FAQ.

I have it behind two Routers, router1 is from my Internet provider, and has all the ports opened and redirected to my router2 (which belongs to me) and which is directly connected to the 3CX PBX. Would need help with my configuration of 3CX PBX system.
