What Is Blue Box?

Popular in the '60s and '70s, 'Blue Boxes' enabled consumers to make long-distance phone calls at no cost. That's correct, and it's free. The Blue Box mimicked the noises emitted by the telephone network's hardware by playing a precise sequence of tones. Phreaking was the term for this practice, and a "phreaker" used a Blue Box. During their time at university, Steve Wozniak and Steve Jobs (yes, that Steve Jobs!) came up with the idea for the Blue Box, which they would later use to launch Apple Inc. They were just two tech-savvy guys named Steve who loved delving into the inner workings of whatever they touched. They were very curious about the telephone network and how it functioned. In the 1960s, audible tones were employed to direct the switches that connected calls on the telephone network based on analog technology. Woz and Jobs figured out they could manipulate the switches and make free long-distance calls by producing certain tones. In 1971, they constructed their first Blue Box and promptly began their phreaking. Here we get into the specifics. The Blue Box could produce tones at either 2600 or 720 hertz. Control of the phone switch could be taken with the 2600Hz tone and returned with the 720Hz tone. The Blue Box could make free long-distance calls by playing these tones in a specific sequence, thus mimicking the sounds emitted by the telephone network's equipment. The tech-savvy public immediately took to the Blue Box, and phreaking quickly developed into its subculture. Users met together to get the most out of their Blue Boxes, shared hacking techniques, and hosted phreaking parties. The good times, however, did not endure. Telecom providers eventually learned about the problem and implemented safeguards to stop phreaking. The company implemented cutting-edge technologies to prevent copycats and altered its network structure. The Blue Box largely disappeared by the 1980s. As digital technology and the Internet advanced, phreaking became much more difficult, and the Blue Box became an interesting artifact of technological history. This concludes our brief overview of Blue Boxes. This revolutionary device inspired an entire generation of young people to become interested in technology by allowing them to make free long-distance phone calls. Your research into the phreaking subculture and this unusual piece of technology was entertaining. Maintain your inquisitiveness and phreak on! Don't phreak for real, and it's against the law!