Spam telemarketer robocall. The recorded message, that sounds like a live body, starts out by saying, 'Hi, this is Bob, and the reason I am calling is that our records show that you responded to one of our recent marketing contacts . . . ." - - -  If you respond the recorded message just continues without a pause. I responded that 'I am on the DNC list', it just kept playing, probably waiting to switch over to an actual live body if you hang on long enough, I didn't. Blocked the number, and filed a complaint with the DNC complaint web site.