1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-94c46443-f54a-4369-8ffe-1196017e77be.png?width=210&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5f9598b6-7069-4450-87bf-55069b616617.png?width=210&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3c0e66ba-2fe7-431b-a415-e1a49dfabf67.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/7151223-f-c1da539a-c3d0-47ab-8597-f4c515f4b94b.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/7151223-f-c1da539a-c3d0-47ab-8597-f4c515f4b94b.png?width=210&height=458)