1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-dae9ba2b-bb5d-425a-a1a8-818930ae99f3.png?width=212&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1ec2f937-074d-4275-81ba-350d1e098559.png?width=212&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-65b53535-e3a5-4187-a8d7-46912d4aa71b.png?width=212&height=458)
2. Ignore calls from unknown numbers
Press the indicator next to "Silence Unknown Callers" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4868ffae-eb53-4261-9c29-254f23aefb45.png?width=212&height=458)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4868ffae-eb53-4261-9c29-254f23aefb45.png?width=212&height=458)