TUCoPS :: AOH Originals :: exdtmf.exe

EXDTMF 1.0 This may be the strangest "box tones" program ever. Fixer observed a ratio between the tones used in the North American DTMF matrix and extrapolated the matrix with additional columns to the left and to the right of the traditional 4x4 matrix, and additional rows above and below. He then nearly exhausted the alphabet assigning letters to these "new" DTMF tones. There are some problems with this matrix, notably the proximity between the lowest column tone and the highest row tone, but the output is interesting and indicates where telephone signaling might have gone if digital signaling were never invented...

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