If the person is already saved in your address book, you can manage their status directly from their profile.
Find the number you want to unblock in the list and tap the (red minus sign or "X") next to it. How to Unblock a Saved Contact how to unblock a number on samsung
No. Samsung does not send a notification to the other party when you block or unblock them. However, if they try to call you while blocked, they might notice the call goes straight to voicemail. Once unblocked, their calls will ring through normally again. If the person is already saved in your