1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e47ad564-61fd-49a5-a998-09d1bcfb1b14.png?width=204&height=366)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-6b7c6f9a-af97-4474-8c72-f8f5aaf4f172.png?width=204&height=366)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b82f275d-c6cc-4754-9127-058f60a661ec.png?width=204&height=366)
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-1e424a0d-8713-41a3-a941-957d159cdfd6.png?width=204&height=366)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1e424a0d-8713-41a3-a941-957d159cdfd6.png?width=204&height=366)