top | item 34566949 DTFM Dial Tones 2 points| uptakeinhibitor | 3 years ago |onlinetonegenerator.com 2 comments order hn newest ggm|3 years ago Dual-tone multi-frequency so DTMF uptakeinhibitor|3 years ago DTFM Dial Tone generator. Apperantly each tone is just a sum of two sine waves. Cool!
uptakeinhibitor|3 years ago DTFM Dial Tone generator. Apperantly each tone is just a sum of two sine waves. Cool!
ggm|3 years ago
uptakeinhibitor|3 years ago