You can use the Do Not Disturb feature to reject incoming calls automatically when you do not want to be interrupted. Calls received while DND is enabled will be logged in the Missed Calls list.
DND applies to all lines on your phone.
Yealink T33G, T4xS, T4xU, T5xW, T58W, and VP59 phones
To enable Do Not Disturb
1. Press the DND soft key button.
2. If this is not immediately visible, press the More soft key to see additional options.
3. The DND icon will show a red indicator when enabled. Press the DND soft key again to disable it.
Note: All calls you receive while DND is enabled are logged in your Recent Calls list.