1. Find "Phone"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1efa7f54-d461-4287-be24-4d7d29220b15.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1b0bef59-e3be-42e2-90af-32fad92719b2.png?width=210&height=454)
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/7140723-f-23a60a04-2012-46ec-9e30-510858ebbfcb.png?width=210&height=454)
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/7140723-f-9aa2020f-747a-4ffc-9f32-5f2fabbdc86d.png?width=210&height=454)