This shows up as VISION MARKETING and I actually spoke to the person. It was a real estate survey. I just went to this site to see if there was a posting because I spoke with the woman and she said I would be getting a gift card with a validation by email in the "Next couple of hours", but of course, it did not arrive.
We've had this call, too, always with a hang-up. Today I let it go to the answering machine and there was a message, "Hello, this is Mrs. Smith." Then a long pause and a hang up. Very strange. It sounded like it might have been a computer.