For whatever reason, you may want to screen your number from other people. You can do see by completing the following:
1. From the Home Screen, select the Phone icon.
2. Push the three dots to access the settings, then select Calling Accounts, your Network Provider and then Additional Settings.
3. Now the display will show Call Settings / Reading Settings. Select this and then select Caller ID
4. From this menu, you can now select your preferred setting for number visibility.