Manage DTMF Tones - Sony Xperia® Z3v

If you're calling into an automated dial-in system (e.g., voicemail) and your dialpad entries aren't being recognized, view this info.

Note Dual-tone multi-frequency (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 (located in the lower-right).
    Note If not available, navigate: Apps icon Apps icon > Phone.
  2. Tap the Menu icon Menu (located in the upper-right).
  3. Tap Call Settings.
  4. Tap DTMF tones.
  5. Tap one of the following:
    • Normal
    • Long