Got a call from this number, they said they were from Medicare and were doing a survey. I told them I don't get Medicare and then they said it was about my husband. They new both our names.
Hung up after that.
I keep getting these calls, too, but I never answer them and they never leave a voicemail. However, from reading the other posts here, I'm pretty sure it's a call-center that can be hired by a variety of companies to make outbound calls for them, either to sell something or to raise donations. Nothing to worry about--the reason you may not get to speak to anyone when you answer is because their automated dialing system lets them dial several numbers at a time, and they only speak with the one that answers first. The background noise, of course, is the sound of hundreds of people making sales-calls. You can definitely ignore this one!