I answered, but there was nobody there. I know from experience that when the person who calls doesn't respond in the first second, it's a robo caller. BLOCKED.
The message identified itself as Google business listings and asked if I wanted to update my profile or click to be removed from future calls and be put on the Do Not Call list. Guess what I did to these low life scamming spammers!!
Received numerous missed calls with no messages from this number almost on daily basis. Finally blocked it. Then began receiving calls from two other numbers in a similar fashion. Blocked those too but now am getting calls from a new one. Blocking them does nothing.