Under what circumstances will an emergency contact be triggered?

It will be triggered when there is no signal or the downtime expires.

Emergency contacts may be in danger, such as war, car accident, flood, etc. Then they can bang, press a special button, and then they can contact the emergency contact. Today, the new couple will inform you of the way of text message and phone call, and then open the position at the same time to let others know where you are, and then they will come to you and help you.