Who called from 2019847867

Just got a call from this number.  When I answered there was no one there.

on cell phone.  I did not answer. I'm on national do not call list, for all the good that does

I said hello several times
nobody was there

so I filed a complaint at https://www.donotcall.gov/Complain/ComplainCheck.aspx

We got a call from this number, there was some music then a recorded voice that said Thank you and goodbye

just got a call from this number, no one on the line.