Rejects calls from unknown number.
If number is not in Contact List, then this app will reject call automatically.
Functionality can be turned on/off as per requirement.
To work it needs Contacts permission, to check whether particular number exists in Contact list.
To give permission, Go to Settings->Apps->Call Reject and give required permission.
Except Android Version 28, it works in all version.
Rejects unknown calls and logs them.
9Apps 4.9
