We constantly review and assess our product features to ensure the highest value protection, and app experience for our NortonLifeLock customers. As a result of this assessment, we have decided to drop the Call Blocking feature of Norton Mobile Security Android.
Alternatives for the Call Blocking feature of Norton Mobile Security Android
If you are interested in replacing the Call Blocking feature of Norton Mobile Security Android, you may consider using the built-in Call Blocking feature of Android OS.
For more information, read this Google Support article: