1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-441da185-c82c-4086-b613-9bb60500f9c5.png?width=206&height=448)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ec89b2fb-8b86-4e12-8ac0-01d15ec92774.png?width=206&height=448)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-060b259a-721c-42d9-ae9b-b07daad1ed6a.png?width=206&height=448)
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-fdd715de-9f5b-4554-967b-a6f64e60c811.png?width=206&height=448)
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/7151223-f-fdd715de-9f5b-4554-967b-a6f64e60c811.png?width=206&height=448)