1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3687118e-b47a-4195-a275-14726218082c.png?width=210&height=456)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-567181f8-57cc-4e36-bc22-86ce9e793c50.png?width=210&height=456)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d0cb3f41-de7f-4a03-abfa-92553e866950.png?width=210&height=456)
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-98f5bb79-9a1a-4092-a633-e9324caa0b91.png?width=210&height=456)
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-98f5bb79-9a1a-4092-a633-e9324caa0b91.png?width=210&height=456)