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Samsung Galaxy A21 - Manage DTMF Tones

2026-10-15 11:13:48.885

Samsung Galaxy A21 - Manage DTMF Tones

If you're calling into an automated system (e.g., Voicemail) from your Galaxy A21 and your dialpad entries aren't recognized, view this info.
DTMF tones are used by automated dial-in systems such as Voicemail or where prompts are used to navigate.
  1. From a Home screen, tap the
    Phone icon
     Phone icon (lower-left).
    If unavailable, swipe up from the center of the display then tap
    Phone
    .
  2. Tap the
    Menu icon
     Menu icon (upper-right) then tap
    Settings
    .
  3. Tap
    Other call settings
    .
  4. Tap
    DTMF tones
    .
  5. Select one of the following:
    • Normal
    • Long