Wish I had that capability. The door is solid except for a peep hole and it's useless, can't see squat through it.
When the doorbell rings, unless I'm expecting someone, I hate opening that door. There is a glass door in front of the metal door but glass is not a great deterrent even if it's locked.
Late at night someone rang the doorbell and I really hated opening that door. It was the fellow next door whose cat had scaled the high brick wall in back and came into my small garden. I let him go through to the back to get his cat.
If its not a neighbor that I want to speak with the door doesn’t get opened. There’s nothing they have to sell that is more important than your safety.
Long story... short point.
I live in an old house... built in 1913. The front door isn’t as tight as I’d like, so, in the winter when the cold winds blow, I seal it up and we use just the back door. Once I heard a knock on the back door in the middle of the night. As usual in those circumstances, I answered the door with a pistol in my hand. When I opened the door I saw a policeman who wanted some information about a neighbor. I laid the pistol on top of the refrigerator and continued to talk with him. He didn’t seem to be concerned about the gun or my actions. YMMV.