Originally Posted by
I-Like-To-Bike
People who consider that a realistic scenario to fear, should protect themselves and never venture out of the range of cell phone coverage. Perhaps an audio warning app can be installed on their phone to warn them that they are entering the forbidden "dangerous zone" of no cell phone coverage, just like an electronic fence keeps a pet dog from venturing beyond the master's property line.
Interestingly enough, the times and places where an event where you might be in one of those scenarios is where there is the greatest chance of a nonexistent signal. Still as I have said I don't see much reason not to take a phone along on most rides.