As of 1030 AM I noticed it, no outbound calls (results in a fast busy tone) and inbound calls go directly to voicemail.
I am sitting on "voip.freephoneline.ca" and shows as registered. I rebooted ATA which made no difference. Two other family accounts are experiencing the same problem.
I set server to "voip2.freephoneline.ca" and NO problems occurred with outbound/inbound calls.
I realize there has been server maintenance going on for the last few days and perhaps I will remain on the voip2 server and see in a few hours if it gets resolved.