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 visual voicemail and how do I switch it on?
- What is the Windows Phone Find My Phone functionality, and how does that work?
- How do I resize the tiles on the start screen of the Nokia Lumia to a different size?
- How do I use the equalizer on my Lumia phone?
- How can I transfer my office documents to my Nokia Lumia with Windows Phone 8?