1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aa8fa17a-fa1e-478c-9714-6c8b880b60d3.png?width=206&height=444)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ec89b2fb-8b86-4e12-8ac0-01d15ec92774.png?width=206&height=444)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fbbcbd04-cc9b-4599-9a90-0db4e2e04dd6.png?width=206&height=444)
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-fdd715de-9f5b-4554-967b-a6f64e60c811.png?width=206&height=444)
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-fdd715de-9f5b-4554-967b-a6f64e60c811.png?width=206&height=444)