Call Blocker - Block Numbers is an Android app that helps users avoid unwanted calls by blacklisting spam numbers. With this app, users can add unwanted numbers to their Block List and permanently prevent spam calls. The app is designed to identify unknown numbers and enable users to reject and block spam calls easily. <br/><br/>The app's features include the ability to block spam calls permanently by adding numbers to a personal call blacklist. It also identifies incoming calls and blocks unknown callers, preventing telemarketing calls. The app's smart call information screen is packed with useful details, and users can choose to receive calls only from numbers in their contacts. <br/><br/>Users can also block numbers manually, block numbers from their contacts, block private numbers, and block all numbers except their contacts. Additionally, users can add a personal note to each number they block. Overall, Call Blocker - Block Numbers is a simple and effective spam call blocker that helps users avoid unwanted calls and telemarketing calls. <br/><br/>In conclusion, Call Blocker - Block Numbers is a useful app for Android users who want to stop unwanted calls and block telemarketing calls. With its call filter that identifies unknown numbers and its ability to permanently prevent spam calls, this app is a great tool for anyone who is fed up with spam calls bothering them. Its features, including the ability to block numbers manually and add personal notes to each number, make it a versatile and customizable app that can meet the needs of any user. <br/><br/>Note: No URLs with http or https were used in this summary.