They called my office number. Saw it come up on caller id. Since I did not recognize the area code as being anyone I work with, I let it go. They did not leave a voicemail.
I am unlisted, and have received 4 calls from this number in 24 hours. I did some research, and it is registered to Grp Focus. They are a tele-marketer based in Laurel, MT. This is only one of several outgoing tele-marketing lines they have. They have it set up so you can't call them back. If they call, DO NOT answer the phone, once you answer, they know it's a good number and will sell it to other companies. I have an unlisted number, and now I get calls from all kinds of out of state numbers. My opinion is that I told some tele-marketer I wasn't interested, and then they sold my number. If you don't recognize a call on caller ID, don't answer. If it is something important, they will leave a message. Annoying, but otherwise harmless.