Who called from 6318321393

Getting crank calls from New York number. If I answer, only says 'goodbye,' a recording. If I call back, says number is not in service.
Harassment day and night...

claims they are from microsoft saying my computer is giving off an error message!!!!asked them to quit calling but they still do ,,, when ypu call back the number messg says its not in service

Scam

I was downloading Office 365 when my phone rang....incoming 631 832 1393.  I didn't answer, but called back to find number not in service.

After you run Windows Defender, you will get a call from these people. Microsoft may have struck a deal with some tech support people that they give half of what they can squeeze from the public who have a few errors on their computer. Not for $200.00 i won't give them the time of day.