DTMF - LG Optimus Zone™ 3

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 navigate: Apps icon Apps icon > Phone Phone icon.
  2. From the Dial tab, tap Menu Menu icon (located in the upper right).
  3. Tap Call Settings.
  4. Tap DTMF tones.
  5. Tap Normal or Long.
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