1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9e961350-67cc-44ff-ba91-3a8a00a20e09.png?width=208&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c5b07fca-a401-4f61-b2d1-02a4e481d4dc.png?width=208&height=454)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0d85c068-96d7-451b-bf3c-bc52ea165ed3.png?width=208&height=454)
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-41ffeebb-03ce-4e85-8455-15373e97f829.png?width=208&height=454)
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-41ffeebb-03ce-4e85-8455-15373e97f829.png?width=208&height=454)