1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3595d79b-94e2-4f25-848a-edb75e4f2994.png?width=206&height=448)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c129d6c5-54dd-4882-96bb-ff073dc36364.png?width=206&height=448)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6af73f94-e6a8-49df-b723-e4f4506c51c4.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/7140723-f-3d6a3351-4af4-41b1-a6d8-c48f12846723.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/7140723-f-3d6a3351-4af4-41b1-a6d8-c48f12846723.png?width=206&height=448)