1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-120f38f6-0a78-4d80-bf49-b68f6daa457d.png?width=210&height=456)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-32593b59-810e-469a-9bfb-5ad161e7f950.png?width=210&height=456)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c767c1d6-c98d-4ab1-987a-771b18bf5f0c.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-37c81d56-9c90-4b21-ad8f-9882462b5eb2.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-37c81d56-9c90-4b21-ad8f-9882462b5eb2.png?width=210&height=456)