I've gotten this twice today and both times the man has stated on my answering machine, "This is a test to show Ethan how the system works - this is a test to show Ethan how the system works."
I just got a call on both my business line, and my personal cell, then again on my business line "This is a test to show Ethan how the system works". The second time I challenged the caller - male, who stopped mid-sentance and there was silence, leading me to believe this is NOT an automated call.