What is Blue box?
A '''blue box''' is a [[tool|device]] that someone could use to make free [[telephone]] calls. It worked by playing back the same [[sound]]s that the telephone [[company]] [[employee]]s used to [[program]] their [[wikt:equipment|equipment]]. The most famous person to use a blue box was [[John Draper]], who went by the name Captain Crunch. Draper taught [[Steve Wozniak]] how to build them. Wozniak and [[Steve Jobs]] sold blue boxes to fellow [[student]]s at the [[University of California]], Berkeley. One time, Wozniak used a blue box to call the [[Pope]]. ==Related pages== * [[Red box]] {{tech-stub}} [[Category:Telephone]] [[Category:Electronics]]