1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3a0fe015-fcfb-4774-bfe0-46398ee72e73.png?width=204&height=366)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-88251f5a-b8b2-4ee8-841e-28a47ab3d0ba.png?width=204&height=366)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0c6d6533-cdc1-4ab7-815c-e0446f96a43a.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-389ba9b9-4d19-4c57-822b-669699ee1b7c.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-389ba9b9-4d19-4c57-822b-669699ee1b7c.png?width=204&height=366)