Called once so far on 2-22-2011 at 2:30 pm EST. I received a garbled voicemail message stating they were "holding $3600 for my time share rental". I don't even own a time share, never have. What a bunch of crap! I reported on the Do Not Call registry site. I called the caller-ID number 858-346-2222. Someone answered after 4 or 5 rings and announced themselves as "Professional Services".
They left a voicemail saying "We've rented your timeshare for up to $3600. Call 310-734-0187 to confirm."
I don't own a timeshare, never have. Didn't call the number, obviously, and blocked the number.