DTMF was first developed in the Bell System in the United States, and became known under the trademark Touch-Tone for use in push-button telephones supplied to telephone customers, starting in 1963.
DTMF töötati välja Ameerika Ühendriikide Bell Systemis ja sai tuntuks kaubamärgi Touch-Tone all, mida kasutatakse telefonides alates 1963. aastast.