Who called from 8434746477

"We are working with security systems in your area..." I hung up.

Hung up when answered, blocked.

I didn't pick up....caller left no msg

Called and said "This is John I am a medical alert specialist. Can you hear me OK?"  I did not answer and hung up.  I am assuming this is one of those calls trying to get your recorded answer of yes that I have heard about.

No one answered when I said hello. Blocked irritating calls.