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How to Set Phone Status to Do Not Disturb (DND) - Snom D717 When your phone is set to Do Not Disturb (DND), you will be able to make outgoing calls but your incoming calls will not ring and instead go directly to voicemail. Simply press the DND button (see Figure 1) to turn DND on and off.
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Figure 2 – DND Status Symbol Troubleshooting Tip My phone isn’t ringing for incoming calls, but I can make calls out. If you can make outgoing calls on your phone but your incoming calls are going directly to your answering service solution, it is likely your phone is set to Do Not Disturb (DND). Usually this happens incidentally when the DND button is pushed by accident.