CORE SIDE SENDS 503 RESPONSE

Hello Everybody,

I'm setting up  an access scenario involving TLS as transport method and so far registration is ok, but I have no calls.

In the public side I have two softphones and they register with my Aplication server (in the core side).

When I try to place a call between them, it fails, checking the traces, I see that invite goes into the public interface, then the private interface sends it to the AS, the AS sends it back to the private and then the private senda a 503 response. No calls are stablished and the caller just see rtp packets but no sound, the called party just don't get any signalling.