I think this feature is required for emergency calls if your specific carrier is not available/in reach - in emergency mode after the phone is restarted, it does connect to any carrier when calling 911, not only yours?
It does indeed. When making emergency calls a phone can switch carrier though generally it will only do so when the main carrier is unavailable or overloaded.
It does indeed. When making emergency calls a phone can switch carrier though generally it will only do so when the main carrier is unavailable or overloaded.