No message left if you don't pick up.
If you pick up the person implies they are working with SDG&E and the State solar initiative. That's as far as I got before letting the person talk to the ether.
Called twice in the last week. They don't leave a message and I don't answer unknown numbers.CID says Rancho Santa Fe (San Diego County enclave). Hear from others that this is a solar energy telemarketer.
That number just called me and did not leave a message. I called them back and the phone company message I heard is that it is a Google phone; I suppose that you can't call that number unless you have a Google phone account. What a way to keep themselves unreachable.