I live in the East Gwillimbury area of Ontario, and just noticed this evening that there are no bars of cell signal in this area. Calls fail when trying to make outgoing calls, and when I try calling our cell, I get a "1UM1" error saying the client is not available. Did something happen to our local cell tower in the power outage on Sunday evening? I called home earlier when i was in nearby Georgina andhad no problem reaching our land line, so that's why I'm wondering if it is our local cell tower that is having an issue. The phone is an iPhone 6.