No Comprende

Does anyone else out there occasionally get these random phone calls on their cell phones (always from a different phone number), only to answer it and hear a strange recorded message chattering on in Spanish?

Well, let me re-phrase. I know this is happening to other people, because when I attempted to Google up an answer for "what the hell are these calls?" (using various combinations of "phone call," "cell phone," "Spanish," "recording," and so forth), I found lots of hits describing the same thing. But what I failed to find was an explanation for just what these calls are all about. Even trusty old Snopes, that usually has an answer for every urban legend-like phenomenon, came up empty on this "Spanish recorded crank cell phone caller."

If anyone reading this has an answer, I would love to hear it. Failing a real answer, made up theories could be entertaining too.