Receiving a Declined and Service Unavailable

I recently turned on my server FreePBX server running on CENTOS after about a year of being turned off (long story) I hooked up two 1120e phone that were preconfigured and working previously. One extension 101 calling 102, I’m getting a DECLINED from extension 102 to 101 I’m getting a SERVICE UNAVAILABLE.
The phones and server are connected to the same switch and all on the same network with no passing through firewalls.

Any tips, debugging etc. would be appreciated.
thanks