What is the full form of DTMF?

DTMF stands for Dual Tone Multi-Frequency.

Short Form DTMF
Full Form Dual Tone Multi-Frequency
Category Technology » Communication
Country Worldwide
Popularity
Type Unknown

What is DTMF?

DTMF is a phone feature that lets you enter numbers by pressing two or more keys on your phone at the same time. This is different from traditional dialing where you press one key and then listen for the dial tone. With DTMF, you can dial a number by pressing two or more keys on your phone at the same time.

There are several types of DTMF, including touch-tone DTMF and pulse-code DTMF. Touch-tone DTMF is the most common type of DTMF and it uses tones that are sent to your phone through the touch screen. Pulse-code DTMF uses codes that are sent to your phone through the sound waves in your voice.