/johnny
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.