This number kept calling me and I wouldn't answer so I would get the same recorded voice message everyone has mentioned. I was curious so I called the number back. I knew it was a scam. A polite man with possibly an Indian accent answered and all I said was that I had just missed a call from this number. He said "who called you" and I said I was not sure as I just missed a call from this number and called the number right back. He asked " was it a call from the IRS" and I said I was not sure. At this point I know it's a scam and I was playing along but I am not too good at that so I started to giggle. He asked "what are you laughing about" and I said I wasn't sure and giggled again. He asked again "what's funny" and I said I don't know. Then he said "are you horn(y) and playing with your p*ssy". I immediately hung up. WTF!?!?
See what curiosity gets you? And since you called, you will get more and more of these calls. The overseas scammers tend to get ugly when you upset them, they are out of legal reach. That said, there are scammers right here in the USA, maybe in your area, who also get nasty and they might have your address as well as your phone number. I read posts like that more often than you might think.
If you are of giggling age, be careful. If you are of any age, you have a right to privacy. Believe me, not picking up a call, blocking a call, is a win. You don't need to invite dirty mouth crazies to your phone or your home.