1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7081124-f-dcd12cb7-4bc3-4d61-92a5-7937d5eb45b5.png?width=210&height=458)
Press Apps.
![](http://wmstatic.global.ssl.fastly.net/ml/7081124-f-1c5b6712-fc07-4e32-acac-713715836213.png?width=210&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7081124-f-a58c89a3-3e13-4b28-b322-0e500780f4e8.png?width=210&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7081124-f-37906e70-13ac-4c06-ba34-708daeb9e401.png?width=210&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/7081124-f-629c8650-a7f9-4700-a408-60b011bacd6f.png?width=210&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/7081124-f-629c8650-a7f9-4700-a408-60b011bacd6f.png?width=210&height=458)