Manage DTMF Tones - Microsoft Lumia 735

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, swipe left to display the Apps list.
    Note Alternatively, tap All apps All Apps icon (located in the lower-right; may require scrolling).
  2. Navigate: Settings > System > Phone.
  3. Under the Dialing section, tap the Long tones switch to turn On or Off.