1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-71405d83-2b08-4846-98e6-c658c610e4e5.png?width=202&height=362)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-11f485ed-c6ee-44b9-9b2f-ef95870f6db6.png?width=202&height=362)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f75b76df-8566-4397-8a17-d44ed47cf6de.png?width=202&height=362)
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-13aa16be-2a7b-4e06-b8ae-49ccf52b24f7.png?width=202&height=362)
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-13aa16be-2a7b-4e06-b8ae-49ccf52b24f7.png?width=202&height=362)