Says they are from Microsoft technical support and your computer is infected.

They are NOT Microsoft (which will not cold call you).  IGNORE !!   Never let a cold caller have access to your computer.

No VM. Per other comments on this number, blocked.

My caller ID identifies phone number 480-502-0007 as Christine Hall.  Called me three times in one hour.  First two calls hung up when I answered. The third time, I heard a faint clicking similar to someone dialing.  I stated to them (in case they were listening) that I was on  the do not call registry and they were in violation.  Told them I was notifying the FCC

I get a call from this number at least 20 times a week. Been getting this call from Christine Hall even though I'm on the do not call list. I haven't answered any of them and she never leaves a message. Very annoying and almost always at a bad time