This is a scam company, ask to call back at the same number before you continue to speak with them.  Claiming they aren't selling anything and do not conform to Do Not Call registry.  They refer people to solar companies, at least that's what they say. Again, ask to call them back at the same number if you are interested.

This number calls my house every day! They never leave a message and no one ever says a word when I do manage to pick up the call! Infuriating!!!!

I get a call from this phone number everyday also.  When I answer no one is on the other line.  Out is getting really annoying.

how do we stop these phone calls?

Calls several times a day. No one is there when I answer and when I call the number back it is disconnected!