Caller was auto call that said " Your home has been selected to receive a solar power system. The installation will have no cost to you." That's when I hung up. Scammer.
Interesting that they hang up after 4 rings so they don't have to pay call toll if answering machine picks up! So set your answering machine pickup at 3 rings. That will cost them. Scammers just don't give up. There must be just enough stupid people in this world to make their efforts profitable. What a shame !