I want to block a number from calling me. I don't even want to know if the person even tried to call me. Don't want any notifications. The person on the other end should not get a ringing sound when he try to call me. He shouldn't even know that I've blocked him. If possible I would like to block text messages from that number as well.
The specifications of my device can be seen from the attached image:
Is there a way to do it?