A red box is a phreaking device that generates tones to simulate inserting coins in pay phones, thus fooling the system into completing free calls. In the United States, a nickel is represented by one tone, a dime by two, and a quarter by a set of 5 tones. Any device capable of playing back recorded sounds can potentially be used as a red box. Commonly used devices include modified Radio Shack tone dialers, personal MP3 players, and audio-recording greeting cards.
Famous quotes containing the words red and/or box:
“This is a red wine glass. Can I get my water in a water glass, please?”
—Michael Tolkin, U.S. screenwriter, and Robert Altman. Griffin Mill (Tim Robbins)
“You’re the most beautiful woman I’ve ever painted. Not because you’re beautiful but because I’m in love with you. Hopelessly in love with you.”
—Muriel Box (b. 1905)