If you're tired of receiving unwanted phone calls on your Android phone, you can use Call Blocker. It's a free and easy-to-use application that specializes in blocking calls. Just add the number you want to block to a blacklist. After doing this, all calls you receive from that number will go directly to the voice mailbox.
Blocking Calls on Android
To start blocking those annoying calls, download Call Blocker on your Android phone. After the installation is complete, click the icon to open it. In the Call Blocker interface, tap the funnel icon and select Blacklist. Press the + button, select the method for adding a number, and add the number you want to block to the list:
The next time you receive a call from the unwanted number, it will go straight to voicemail.
To re-admit calls from the blocked number, enter the Blacklist, tap on the number you want to unblock, and select Delete.