Phone Tones
Choose a keypad symbol to hear its two-frequency DTMF tone, with no phone service or audio upload involved.
Ready to play after you click Play.
A QUICK WALKTHROUGH
How to use this tool
- Choose a keypad symbol.
- Click Play to generate its paired frequencies locally.
- Click Stop to end playback.
DTMF reference
The keypad uses the standard 4×4 DTMF frequency pairs for digits, star, pound, and the A–D control symbols.
Browser-only playback
Web Audio creates the tone after your click. This tool does not place calls, contact a phone service, upload audio, or save recordings.
GOOD TO KNOW
Common questions
Does this call a phone number?
No. It only plays a locally generated reference tone.
What frequencies are used?
Each symbol combines one row frequency from 697–941 Hz with one column frequency from 1209–1633 Hz.