DTMF Tones
Generate telephone dial tones (Dual-Tone Multi-Frequency). Tap keys or enter a sequence.
Dial…
50%
Frequency Reference
0941 + 1336 Hz
1697 + 1209 Hz
2697 + 1336 Hz
3697 + 1477 Hz
4770 + 1209 Hz
5770 + 1336 Hz
6770 + 1477 Hz
7852 + 1209 Hz
8852 + 1336 Hz
9852 + 1477 Hz
*941 + 1209 Hz
#941 + 1477 Hz