Red Box (phreaking)

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:

    “Swift blazing flag of the regiment,
    Eagle with crest of red and gold,
    These men were born to drill and die.
    Point for them the virtue of slaughter,
    Make plain to them the excellence of killing
    And a field where a thousand corpses lie.”
    —Stephen Crane (1871–1900)

    “A Cherokee is too smart to put anything in the contribution box of a race that’s robbed him of his birthright.”
    —Howard Estabrook (1884–1978)