The Online Tone Generator can be used to create Dual Tone Multi Frequency (DTMF) signals commonly heard on telephone dial pads. Each tone is simply the sum of two sine waves. Click and hold the dial pad buttons to hear each tone.

DTMF Tone Generator Online Free online simulator of pressing phone buttons. All the signals that are heard when dialing a number on a mobile phone - listen and download for free.

DTMF Decoder is a very easy to use program to decode DTMF dial tones found on telephone lines with touch tone phones. DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands.

Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers. [1]

This tool alows you to encode or decode DTMF (dual-tone multi-frequency) signals. Use this slider to set the duration of the tones. Use this dialpad to create the corresponding DTMF tones. You can capture the sound of your microphone. You should use a different device to generate the tones. Letter: ?? Number: A tool by Nicolas Hollmann.

Dual-tone multi-frequency signaling (DTMF) is used for telecommunication signaling over analog paths. The DTMF keypad is a 4x4 matrix in which each row represents a low frequency and each column represents a high frequency. Pressing a single key sends a sinusoidal tone for each of the two frequencies.

Dual-Tone Multi-Frequency (DTMF) is the signal that you generate when you press an ordinary telephone's touch keys. Over the years, DTMF has replaced Pulse dialing, the early type of telephone dialing in which short pulses were used to relay the dialed number.

Sound generator for DTMF / dial-tone telephone sequences. Can sound live, from a string, or generate a downloadable sound file.

A DTMF code for dual-tone multi-frequency, is the name given to a combination of sound frequencies (beep) emitted by the keys of a telephone keypad. The sounds emitted can be used by telephone servers, either to recognize a dialed number, or by automated voice servers to recognize which keys are typed by the user.

DTMF dial is a software program designed to emit DTMF tones (including A, B, C and D) from the PC sound card. It has push button, keyboard, clipboard paste and command line interface - with programmable memory, last 16 number redial and tool tray operation.