OK, they are wise to the pick-up/hang-up thing. That's what I did this morning and the my phone immediately rang back from the same number. This time I picked up and heard the recording say, "DON'T HANG UP! Congratulations, your home has been selected..." At this point I hung up again and did not get an immediate call-back.
807 this morning - really?! Same as other posters... caller ID said "home security". I clicked the talk button immediately followed by the off button. Seems like we need home security to prevent these a-holes from calling us!!