Call waiting used to be so easy. Introduced, on a limited basis, in the early 1970s, it came into wide use in the pre-cell phone 1980s. You’d hear a little beep, tap down on the “switch” (aka “plunger ...

Call Waiting is a feature in Samsung Galaxy devices that makes a sound if you get a call when you’re already on the phone. You’ll usually get a beep during a call that should indicate a new call ...