Blue box
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 The blue box built by Steve Wozniak, on display at the Computer History Museum, gift of Rick Prelinger |
A blue box is an unauthorized electronic device that generates the same tones employed by a telephone operator's dialing console to switch long-distance calls. A blue box is a tool that emerged in the 1960s and 70s, it allowed users to route their own calls by emulating the in-band signaling mechanism that then controlled switching in long distance dialing systems. The most typical use of a blue box was to place free telephone calls. A related device, the black box enabled one to receive calls which were free to the caller. The blue box no longer works in most western nations, as modern switching systems are now digital and do not use in-band signaling. Instead, signaling occurs on an out-of-band channel which cannot be accessed from the line the caller is using, a system called Common Channel Interoffice Signaling or CCIS.
- See also: Wikipedia
| The SARTS technical journal The SARTS technical journal www.nerdnetworks.org/sarts/ - Web |
| Secrets of the Little Blue Box - article with phot... Secrets of the Little Blue Box - article with photos myoldmac.net/FAQ/TheBlueBox-1.htm - Web |
| All about the Blue Box and related devices All about the Blue Box and related devices www.artofhacking.com/tucops/phreak/boxes/blue/index.htm - Web |
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| Text files about blue boxing Text files about blue boxing www.textfiles.com/phreak/BLUEBOXING/ - Web |
| The definitive guide to Phreak boxes The definitive guide to Phreak boxes www.elfqrin.com/docs/hakref/phrkbox/phreakboxes.html - Web |
| Fun with Dick and Jane by Lewis Gum and Edward Oxf... Fun with Dick and Jane by Lewis Gum and Edward Oxford - article that appeared in the 1978 Bell Telephone Magazine about telephone fraud and Phone Phreaks www.porticus.org/bell/pdf/funwithdickandjane.pdf - Web |
| A site dedicated to the history of phone phreaking... A site dedicated to the history of phone phreaking, with extensive information on blue boxing. www.historyofphonephreaking.org - Web |
| A working, publicly-accessible simulation of the o... A working, publicly-accessible simulation of the old telephone network that allows legal blue boxing. Also has instructions for building a basic blue box. www.projectmf.org - Web |
| The November, 1954, Bell System Technical Journal ... The November, 1954, Bell System Technical Journal article titled "In-Band Single-Frequency Signaling" (A. Weaver and N. A. Newell) www.historyofphonephreaking.org/docs/weaver1954.pdf - Web |
| The November, 1960, Bell System Technical Journal ... The November, 1960, Bell System Technical Journal article titled "Signaling Systems for Control of Telephone Switching" (by C. Breen and C. A. Dahlbom) www.historyofphonephreaking.org/docs/breen1960.pdf - Web |
| Blog that discusses and reviews 70's and 80's soft... Blog that discusses and reviews 70's and 80's software tools for phreaking - many of which produce Blue Box tones blog.8bitunderground.com - Web |
