These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.

By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...

You know the moment. You're mid-call, about to say something important, and the line goes dead. Or you're trying to hail a ride, load a map, or send a file, and the spinning icon just won't quit. It's ...

The discovery of a vast telecommunications network that authorities say was capable of wiping out cellular communications in the nation's largest city is just the latest in a steady series of ...

Former President Joe Biden’s team panicked after a reporter reached out to Biden on his personal cell for an interview and hurriedly changed the president's number, according to a new book released ...