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Samsung Galaxy S21 5G / S21+ 5G / S21 Ultra 5G
Manage DTMF Tones

2026-10-15 08:57:44.197

Samsung Galaxy S21 5G / S21+ 5G / S21 Ultra 5G
Manage DTMF Tones

Improve the responsiveness of your Galaxy S21 5G / S21+ 5G / S21 Ultra 5G in automated phone systems by changing Dual-Tone Multi Frequency (DTMF) tone settings.

Steps

  1. Open the
    Phone app
    .
  2. Tap the
    3-dot Menu
     then select
    Settings
    .
  3. Tap
    Other call settings
    .
  4. Tap
    DTMF tones
    .
  5. Select
    Normal
     or
    Long
    .