This is a University of Miami phone number. Not sure of the department, but definitely a call from UM as 305-284-xxxx is the format for all inbound and outbound UM numbers.
They just called me around 750pm on a tuesday, and did not leave a message. When I called back it was a "non-working number" at the University of Miami.
This number called by cell today. They left a very muffled (sounded disturbing) message. I could not make out what they were saying but it was like if the devil himself was leaving me a message.
An African-American woman called and then said that she apologized for having dialed the wrong number. I did identify myself as "Carlos" in my greeting, so I can only speculate that the University of Miami is trying to verify former alumni contact information.