Engaged tone

{
  "id": "MLC-T-IND-002032",
  "term": "Engaged tone",
  "field": "Industrial and trades",
  "definition": "An audible signal heard by a caller indicating that the dialed telephone line is currently in use or unavailable. This tone, also known as a busy signal, informs the caller that the connection cannot be completed at that moment. The specific frequency and cadence of an engaged tone are standardized within different telecommunication systems.",
  "synonyms": [
    "busy signal"
  ],
  "subject": "Electrical engineering",
  "see_also": [
    "busy signal"
  ],
  "translations": {
    "de": "Besetztsignal",
    "es": "tono de ocupado",
    "fr": "tonalité d'occupation"
  },
  "url": "https://mlchart.com/terminology/industrial/engaged-tone/"
}