1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-db0d1013-54a0-4782-b2ec-c4e9e84eef40.png?width=210&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-13cfab0e-1d3f-4e9b-8813-b8e24eb3a6e0.png?width=210&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aa03c10a-23fb-450d-8397-43e76729478f.png?width=210&height=458)
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-78fb8f20-cb89-47bd-b749-323cef7a172b.png?width=210&height=458)
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-78fb8f20-cb89-47bd-b749-323cef7a172b.png?width=210&height=458)