Received call, but no message was left. Called the number back and an automated message picked up allowing me to press 1 to speak to a rep, or 2 to add my number to the "Do Not Call List". I chose 2, and was advised it can take up to 48 hours for my number to be removed. Pretty simple.
They hung up before I could answer the phone, which I'm pretty sure mean they're "fishing" for live numbers.
They called my cell phone, which is on the FTC and State of FL Do Not Call List.