I saw the Caller ID, "Senior Alert" and I ignored the called.
Century Link offers an upgraded service which includes Caller ID and Call Rejection. My nuisance phone calls have declined after I had those tools.
Call shows up on land line as Senior Alert - SCAM. Tried to call back on my cell phone so I could tell them to remove my number and it doesn't even go through, doesn't ring, doesn't say a non working number, just dead air. Our number used to be my late father in laws. I've told most of these scammers that there is no one at this number that needs their services and to take it off, but of course that won't happen.
Expect most all unknown numbers you get "called" from to be duds to protect the caller's whereabouts. Do not return their calls either. Shut down any answering device and let the phone ring.