On the way home from a recent trip to Calgary, my wife and I cut across Highway 590 from Innisfail to Big Valley to bypass construction on Highway 11. During that leg of the trip, our cellphones, both fairly recent editions of the iPhone, were bouncing between high 3G service, one bar of 5G service and no service at all. Both of us are with Telus, and according to that company’s service map, the entire region, minus a few small pockets of LTE co…