What is Scam Blocker? Call Detector Support - August 23, 2015 10:43 When this setting is enabled, known scammers will be automatically blocked by Call Detector. Related FAQs: How do I disable Scam Blocker? How do I block a number by name? How do I block Restricted, Private, Unknown, or Anonymous calls with Call Detector? What is the Do Not Disturb feature and how do I use it? What is Group Block and how do I use it? What if the number I want blocked isn't 10 digits in length?