| Title |
3 |
| Board | DTMF Tones - Long |
| Format | MP3 |
| Length | 0 seconds |
| Plays | 231 plays |
| Uploaded | February 6th 2021 |
| Auto Transcribed | No |
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DTMF has generally replaced loop disconnect ("pulse") dialling. Each key you press generates two tones of specific frequencies. So that a voice can't imitate the tones, one tone is generated from a high-frequency group of tones and the other from a low frequency group.
Long versions of DTMF tones as MP3 files to download and to play.