New devices like the iPhone 14 models and ... a message appears on the screen with an alarm sound. The user has 20 seconds to respond, or the device will call 911. That might not be enough time ...
The iPhone 14 and 15 can connect to these satellites to contact an emergency dispatcher even when you can't make a phone call. You can also ... without calling 911. How to use Emergency SOS ...
From Settings on your iPhone: Tap Apps > Phone > Silence Unknown Callers. Toggle on Silence Unknown Callers.