1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2ff25a93-a310-4d1a-9ef4-0dc13817d784.png?width=212&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5c7a292b-7ab8-4711-b8d0-269fa0f5f863.png?width=212&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-6b7267c5-7c8a-4b94-be29-d237663c528d.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-b4ae308e-0de4-4f78-8bd2-b40a868fd11a.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-b4ae308e-0de4-4f78-8bd2-b40a868fd11a.png?width=212&height=458)