Related: So, what does SOS actually stand for? SOS is just that—SOS. It was derived from Morse code and recognized as an international standard signaling danger, or the need for aid.

Are you seeing a strange message on your iPhone that reads SOS? Here's what that message means, per Apple. What does it mean when your iPhone says SOS? Apple Support says if you see "No Service ...

Major cellular carriers are reporting significant outages Thursday, which created some confusion for iPhone users whose phones were in SOS mode.

Major cellular carriers are reporting significant outages Thursday, which created some confusion for iPhone users whose phones were in SOS mode.