They keep calling and will never leave a message. I called them back from another number and it seems that it is.....- vacation service center - holiday inn vacation plan
This appears to be a legitimate number. I am a Holiday Inn time share owner and received a call from this number regarding a promotion ($199 for 4 days/3 nights). Periodically, I receive the same promotions by email or snail mail. The fact that several participants on this website received the call may be an inducement to come visit one of the Orange Lake Resorts, provided you take a 90 minute tour and listen to a sales presentation about time shares. You're not obligated to buy anything.