If GPS is off, but phone is connecting to the phone network it can be triangulated to a location. i.e. it is between 3 cell towers at any time. The signal strength can be used to determine the distance from each tower. Where the points intersect is where the phone is located.
If GPS is off, but phone is connecting to the phone network it can be triangulated to a location. i.e. it is between 3 cell towers at any time. The signal strength can be used to determine the distance from each tower. Where the points intersect is where the phone is located.
If you don't think you'll make the final destination, you dump where you are.