Touch-tone dialing

{
  "id": "MLC-T-IND-006089",
  "term": "Touch-tone dialing",
  "field": "Industrial and trades",
  "definition": "A method of signaling in telephony where pressing a button on a telephone keypad generates a unique dual-tone multi-frequency (DTMF) signal. Each digit corresponds to a specific combination of two audio frequencies, one high and one low. This system replaced pulse dialing and enabled faster, more reliable communication with telephone exchanges and interactive voice response systems.",
  "synonyms": [
    "dual tone multi-frequency"
  ],
  "subject": "Electrical engineering",
  "see_also": [
    "pulse dialing",
    "tone dialing"
  ],
  "translations": {
    "de": "Mehrfrequenzwahlverfahren",
    "es": "marcación por tonos",
    "fr": "numérotation par touches"
  },
  "url": "https://mlchart.com/terminology/industrial/touch-tone-dialing/"
}