1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-22e74535-90f5-475a-b0c1-eee379f0c2c7.png?width=214&height=462)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f23e6997-cb6b-4d64-a502-812d2051abee.png?width=214&height=462)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0a50fc42-ad8d-4296-be6f-c0151a9703d6.png?width=214&height=462)
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-bdd74057-c005-445c-af3f-019168e17315.png?width=214&height=462)
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-bdd74057-c005-445c-af3f-019168e17315.png?width=214&height=462)