Hang-up no message. Most likely solar or home "improvement"
Called back, no identifying company name.
"Thanks you for calling. You missed a call from us, if you like a call back call back, please press 1. If you would like to be removed from our calling system, please press 2" (recorded). .... We have not received a valid response, please try again. (Autoattendant) - x3... "We have not received a valid response, please wait while we connect your call" (Autoattendant) ....then back to recorded message.