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:
“O land and soil, red soil and sweet-gum tree,
So scant of grass, so profligate of pines,”
—Jean Toomer (1894–1967)
“The idea that you can merchandise candidates for high office like breakfast cereal—that you can gather votes like box tops—is, I think, the ultimate indignity to the democratic process.”
—Adlai Stevenson (1900–1965)