Just to clarify. I was ALREADY on 13. Everything was fine. It was the most recent batch of updates to 13 that appear to have broken it. BTW, the latest batch of updates changed several settings in the new firewall module as well. That was working until the recent updates, but after the updates eth0 was back in trusted. When I attempt to move it back to external, Neither incoming or outgoing work. If I disable the firewall outgoing calls again work but incoming do not.
The configuration is the same as it has been for about a year - going back to 12.
I do not allow "unknown" calls. Never have. And its inbound28.vitelity.net not 18. The SIP settings are those recommended by Vitelity. Those have always worked in the past. I have 3 other systems running 12, different locations, all still working. Same SIP settings. Vitelity provides for authentication by static IP.
Any other ideas?