Just received a call from this number, and this time they claimed our Windows machine had a virus and wanted us to go to the computer. Heavy Indian accent, but identified himself as "Robert".
Answered, and a solid minute of just 'noise' played. A mixture of what sounded like some low-quality phone ad, dial-up noise, heavy static, and random 'dings' going on all at the same time. The background ad kept changing too.
Guy called from this number said he was from Microsoft and said I had corrupt files on my computer. I asked him what was my IP address and he told me to look in my wife's [***] for it. I hung up.