Call Ranger: Mass Call Blocker

1. Download and open the app, then grant Phone and Contacts permissions so blocking and identification work correctly. 2. Choose your default blocking mode, such as block spam and robocalls, block unknown or private numbers, allow contacts only, or block by country and area codes. 3. Configure mass rules by adding prefixes or ranges to block in bulk, and create personal Blocklist and Safelist entries for precise control. 4. Enable caller identification, notifications, and your preferred action for blocked calls, such as auto hang up or silence. 5. Check the blocked call log to review activity, adjust rules as needed, and refine filters for the best balance of protection and accessibility.