Welcome to Android Central! Do you mean that it's not letting you call a certain number, or that one contact can never reach you because they get rejected when they call?
Hallo, I have the same problem. One of the numbers in my list ca not reach me. I checked and this number is not in the block list/ How can I resolve this problem on S8+?
Welcome to Android Central! Check with your carrier to see if they have their own carrier-side blocking system, and if so, if that number is in that list for some reason.
Thank you for your answer. This is not for first time to reject always a certain number. I think it is not from the carrier. First time after discussion with their help desc I did not resolve this issue. But after resetting the phone to fabric settings this issue was resolved. But I wonder how this can b resolved without resetting the phone.
Many thanks again.