Boiler room call with lots of background noise.  Caller with possibly Indian accent and obviously non-US native speaker grammar announced he was with Health Care and asked if I was doing (?). I said "Health Care? What's that?" and he answered that he was calling to offer me a service for my Medicare.  I said I'm not on Medicare.  "You're not?" "No."  He apologized and hung up.  Probably the back brace scam.