DTMF - Nokia Lumia 822

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 Start screen, select the right arrow.
  2. Select Phone.
  3. Select more (three dots (...) located in the lower-right).
  4. Select settings.
  5. From the Long tones section, select the On / Off switch.
    Long tones are enabled.
    Long tones are disabled.