1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b4fbc85f-d217-43e2-bedd-f25877a7bf0e.png?width=212&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cf862cd9-7850-4947-bfce-89401b1944f5.png?width=212&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e2c33b32-6e64-4ee0-b427-872de4e571da.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-ee459048-e394-41b5-9439-6a04ea6c863c.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-ee459048-e394-41b5-9439-6a04ea6c863c.png?width=212&height=458)