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DTFM Dial Tones (onlinetonegenerator.com)
2 points by uptakeinhibitor 1234 days ago
2 comments
ggm 1234 days ago
Dual-tone multi-frequency so DTMF
link
uptakeinhibitor 1234 days ago
DTFM Dial Tone generator. Apperantly each tone is just a sum of two sine waves. Cool!
link