SOS mode
Why is my phone in SOS mode? How do I turn off SOS mode?
iPhone 13, iOS 16
If you see No Service or Searching in the status bar on your iPhone or iPad (Wi-Fi + Cellular), your device isn't connected to a cellular network. If you see SOS or "SOS only" in the status bar, your device can still make emergency calls.
If you see No Service, Searching, or SOS on your iPhone or iPad