Rang back the number and it said that the call had been disconnected, please check the number and dial again. I have put this number on auto block but they still keep ringing .

This number called about doing a home assessment for solar. Asked if we had solar panels then when I asked for our number from the calling list the caller respectfully said "right away" and hung up.
Annoying to receive an unsolicited call but not a difficult caller.

I got one from the same number last night, as soon as I said hello they hung up

Don't know it is calling as they hand up.