Call history on the OBi shows no incoming calls.
That indicates incoming calls are not reaching your Obi device. Again, I would install the PP softphone and see if that works. You need to isolate where the problem is.
You said it shows "Registered" on the Obi web portal. Does it also say registered on the Obi itself?
Status>System Status>SP1 Service Status
Did you port your phone number to PhonePower?