They never leave a message. I think they have called numerous times and they hang up when I answer. When this happens I get a text from another number, shortly after, asking for me to accommodate a large party of people for massages. I never respond because I recognize the procedure and the wording. It is a scam. The send a fake check for over the amount, "BY MISTAKE", they say. Then they want you to deposit it into your bank and wire them the difference or they , do you a so called favor by allowing you to keep a small portion for your troubles. Meanwhile the check if fraudulent, you send them real money and you never knew who you were talking to. Thankfully I caught on and reported this and did not deposit the check. The phone number is (650) 285-4761
When I answer they hang up - obvious fishing call - meaning robots test to see when the number is answered then a sales person will call at that same time in a few days.
The best way to get rid of calls like these is never ever do business with a spammer no matter how good the offer is. If it isn't profitable they wont' do it.