Repeated recording, but never a live person, inviting a call-back regarding some unspecified "important" matter. (Apparently not important enough to use a live or written contact.)
Leaves a recorded message stating I should call 505-265-3476 at my earliest convenience, never leaves anything more than that. Apparently this number goes to a collections agency in Albuquerque, because I tried calling back and got lost in automated system; but I have not lived in NM for more than 3 months, there's no way I owe anyone anything more than 2-3 weeks old right now.
Got message with just phone # - called it, refused to punch auto-system ##s, got a woman named Lori - who called me the wrong name and claimed I had a different date of birth. She then said something to the effect that as a collections agency they just call any phone number with a similar name to the one they're hunting, and claimed she'll remove our # from their list as not being whoever they're hunting. Seems like Phishing.