I've been getting these calls for over a year! Yesterday three times, and already one this morning. I've received both Medical Compensation and Windows Technical Support calls, neither of which I fall for, trust me. My husband went as far as to tell one Easterner we ran Apple computers. I told the Medical guy this morning that I had called the FBI, and that all my calls were being monitored. He hung up, of course. One of the calls I got yesterday was from a guy with such a heavy accent I told him he wasn't speaking English. He then proceeded to spell out his most difficult words, and half of his alphabet was equally unintelligible.
I called the local FBI office this morning, and they told me that unless I have actually been scammed and lost money, they can't help. I facebooked about it, and asked everyone to call the number and harass them in return. Don't know if that will do any good.
Recorder and caller ID showed 1 message and 1 call. No message left with who it was , but background sounded like a call center. Just programmed number into my call blocker and won't worry about it.