The number is from Graven, Austin & Drake Telemarketers. It is their "Do Not Call" number ("Press 1 to include this number in our Do Not Call List, Press 2 to include another number in our Do Not Call List"). Yeah...right. I did not want the call in the first place. I'm going to give you another number, or confirm THIS number by pressing one of those choices?
They have 34 complaints with the BBB. They are based out of Colorado, even though this number is a Chicago number (which is no big thing in this age of telecommunications.)