Missed call from IRS I think was left on the VM ??? Not sure

SCAM - Recorded message from a "Mickey Johnson from the IRS"

From the IRS web site:  Note that the IRS will never: 1) call to demand immediate payment, nor will the agency call about taxes owed without first having mailed you a bill; 2) demand that you pay taxes without giving you the opportunity to question or appeal the amount they say you owe; 3) require you to use a specific payment method for your taxes, such as a prepaid debit card; 4) ask for credit or debit card numbers over the phone; or 5) threaten to bring in local police or other law-enforcement groups to have you arrested for not paying.

I have been receiving calls from this company for seven years, three to four times a day and I never ordered anything from them. I can’t understand why they would continue to waste their time if they’re not going to make a sale. I guess that’s why India is somewhat of a third world [***]-hole. Whenever you get a call from US Pharmacy or Canadian Online Pharmacy, trying to sell you Viagra or Cialis, keep them on the phone for as long as you can. Tell them that you want to buy 500 or 1000 tablets. For that amount, they have to consult with their supervisor. Then the head jerk gets on the phone. (He’s even more stupid than the first person.) Keep them talking for as long as you can. Make up all kinds of stupid questions such as, asking them what color the tablets are or what shape they are. Just plain, stupid questions. Then when they ask for your credit card number, tell them that you really didn't have any intentions of buying anything. Tell them that you just wanted to keep them on the phone so that they weren't bothering anybody else. They get SOOO MADDD because they're wasting their time and not making any money. Doing this is so entertaining. On more than one occasion, I have been offered oral sex by female operators, if I placed an order. Another thing that baffles me, who in their right mind would buy this poison. God only know what they make those pills from? They’re not governed by any type of FDA.
The phone companies refuse to do anything about this because they’re making money from these calls. The FCC & FTC are USELESS government organizations with no desire or ability to make these calls stop. And, the “Do Not Call” list is a joke.

I received the call on a holiday. They left no message.

I get calls from this number once or twice every day and every time I answer the phone the person just hangs up without saying a word