How to disable/enable the DND feature on my phone?

The Do Not Disturb feature button (DND) can be found in all the Yealink phones offered by GreenLink. It will often be the third button from left to right at the bottom of the phone's screen as indicated in the images below for each phone model. 

To enable or disable the DND feature push the DND button in your respective Yealink phone.

In the event that the DND feature remains active or inactive after pressing the DND button on your VoIP phone, there is another way to enable/disable it from the phone's keyboard.

• To activate/enable: Dial *78
• To deactivate/disable: Dial *79