Essentially, while SOS initially had no meaning outside of its speedily sent message, it's now a widely used call for help.

Although the U.S. lagged in adopting the new signal, the first SOS was transmitted from the American vessel "Arapahoe" in 1909, after a propeller shaft snapped. But CQD remained popular-primarily ...

With its global launch today, Overwatch x Rescue (OxR) is the first SOS plan to take advantage of the satellite capabilities added to newer-model iPhones two years ago. For $80 a year, iPhone ...

What is Emergency SOS on iPhone? It's a feature that could save your life. If you're in an emergency, your iPhone can ping one of Globalstar's 24 low-orbit satellites. The satellite will then send ...