I tried network selection, but could not select any other networks. Sadly no mutual aid deal was made to permit Rogers customers to connect to non-Rogers networ

I tried network selection, but could not select any other networks. Sadly no mutual aid deal was made to permit Rogers customers to connect to non-Rogers networks. I suspect if you popped the SIM out, it would try any of the 3 providers available (in Toronto anyway), and dunno how the device chooses which. If it chose Rogers (strongest signal?), it would also fail to go through and you might be unable to get a 9-1-1 call in until you run in the right direction. But few carry around a 'trombone' for emergencies, and I'd need something sharp to get my case off. But my blame is on the cellular phone: A 9-1-1 call that makes it to the tower and no further shouldn't be counted as a success by the phone.