1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5c4a42b6-50a6-488b-a367-d138066b9bbd.png?width=210&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ff9d6ab5-e395-4ac0-a34a-f8ade2126d21.png?width=210&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5dd2b661-c570-4b54-b753-ed687f4e73d1.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-b0762708-ac1b-4eae-ae1c-bebd426b7474.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-b0762708-ac1b-4eae-ae1c-bebd426b7474.png?width=210&height=458)