Claims to be from "Construction Roundtable" calling about ads in a magazine, wanted to see if co. wanted to put ads in. Said he didn't personally have a point of contact but was "sure someone in the office does". We do have a Business Proposals email address so I gave that out, and caller wouldn't stop talking in detail about what he's sending over as though I'd be an appropriate contact for this. I eventually had to politely cut him off and hang up due to other calls coming in.