DTMF - Casio G'zOne Ravine / Ravine 2 C781

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 the main screen, press the center of the 5-way navigation pad to choose MENU.
  2. Select Settings & Tools then press the center of the 5-way navigation pad to choose OK.
  3. Select Call Settings then press the center of the 5-way navigation pad to choose OK.
  4. Select DTMF Tones then press the center of the 5-way navigation pad to choose OK.
  5. Select a setting then press the center of the 5-way navigation pad to choose SET.
    • Normal
    • Long
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