No message was left when they called my unlisted cell at 8:30 AM. Normally I'd be on the train now and wouldn't even get the call but I'm sick this morning.
Called my WORK cell and my home cell within two minutes, did not leave a message on either. One is on the DNC registry already and the other has never been used for anything but work - so they are robocalling every number somehow. Very annoying and reported.