I would really appreciate any help on this if someone has an answer…
I have a FreePBX System configured up on my main network with a Firewall. All phones on the network are working great.
I just setup a remote phone on a Grandstream SIP adapter, and this phone is on a non-nat network with a routeable IP. The adapter is registering with the PBX since I have all ports for SIP forwarded properly on the firewall to forward to the PBX. When I try to dial this phone, I go directly to voicemail. When I try to dial from this phone, I get ‘All Circuits are Busy’.
If I issue a ‘sip show peers’ at the CLI, everything looks great except the Status shows ‘Unreachable’.
Does anyone know a simple way to get this working? If I use and X-TEN lite client outside, it works great, so I know that the Firewall is not the issue. I am thinking maybe it is something on the Grandstream adapter.
Any help on this would be GREATLY appreciated.
Thanks very much,