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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