This is a call center in Riverside, California. Must be a human 'bot, checking for good numbers and folks who are home and answer. Let roll to machine, no message left. Police traced; number blocked.
Caller ID showed "California Call." I know no one in California, let it go to my answering machine. Caller did leave a message, but only said "hello, hello" before hanging up.
Caller with heavy accent trying to sell me a home security system. Told them I had a large, mean Pit Bull, which is true, and didn't need their system!