I noticed no devices registered around 4:20 pm and my pap2t showed can't logon to server. However, I left it alone and pap2t re-registered within a few minutes. Everything works fine. Didn't miss a call.

I believe I am on sip. I am a light footprint. I check and double check and then check here and BBR if something is not right. I always figure it will correct itself if left alone.