Unknown call blocking for Android is one of Parental Values' most popular features with parents. It allows you to track and block unknown numbers on your child's phone so that only chosen contacts can reach them.
The unknown call blocking feature allows you to block unknown numbers with one click. View your child's call log in the app and choose which trusted contacts can reach them. The portal has three different categories. One shows calls, the next shows restricted incoming calls, and the last shows phone numbers that you have restricted. Simply add a phone number to your desired category, and that number will either be blocked from getting through or be granted access without hassle.
The Parental Values App for Android makes it easy to monitor your child’s calls and restrict who can reach them with the Unknown Call Blocking feature.