Some Android device manufacturers provide basic Call Blocking features as part of Android operating system or through their own app. You may use these features or apps to get the Call Blocking functionality.
Why Call Blocking and SMS Anti-Theft features are unavailable on Android 9.0 or later?
Do these policy changes restrict JioSecurity and its security features?
What if I have Android 8.x or earlier version on my device?
How can I block unwanted calls or callers?
What is JioSecurity?