Sounded like a scam, I or someone I knew had entered my phone number in a drawing for a all inclusive vacation to Cancun, and then Orlando along with $2500 vacation dollars.
If you answer a call from a number you do not recognize and no one immediately responds, it is often times a auto-dialer with a telemarketing firm. Some companies use auto-dialers that connect you to a rep when the call is answered. There is typically a delay between your picking up the call and saying 'hello' and the open call being connected to a rep. Some use an auto-dialer to log the time of day the call is answered so the company knows when the number is most likely to be answered, and then it goes on a list for cold calling by a rep. Look the number up before you answer it.