The call told me I had won a free trip to cancun mexico and if I wanted more information, press 1. The call came to my mobile phone which as far as I know it is illegal for telemarketers to call such numbers.
This is a fraud campaign currently active in Canada using a series of Iristel VOIP numbers. The objective is to obtain your credit card number and drain your account.
If you attempt to "opt out" your number will be confirmed as live and added to a suckers list for repeated future calls.