You need to wait for a firmware update to your phone and then accept the extras+info app update. The extras+info app update installs the call+SMS filter app to the Lumia device. It will be visible in the Settings menu.
- What is the shortcut to activate silent mode on my Nokia Lumia phone?
- How can I reduce a data usage on my Nokia Lumia phone?
- What is International Assist on my Nokia Lumia phone?
- How do I know if an app or service is using my location info on my Lumia phone?
- From the start screen, how do I get to the list where all the apps are?