Jim -- who won't admit that he has a complete 'brick' of TAP and a Bud set somewhere, or that he ever got TAP in the mail while he was in Jr. High, (likely putting him on the FBI watch list for life) or that he once, back when computers consumed his life, coded a DSP to generate not only a "complete" set of blue, red and black boxes, but also one end of a UUCP
Phrack magazine published some code to generate (encode) and detect (decode) DTMF tones: http://www.phrack.org/show.php?p=50&a=13 The code detected "blue box" MF, but didn't generate them (although its fairly easy to modify it to add that functionality).
Tim Newsham http://www.lava.net/~newsham/
