If you get yourself an inexpensive Digicel phone w/sim card and add minutes as you go you will find it to be the most economical way. I think it is about 8 to 10 JD per minute to call the US (~10 cents). IF you are going to be making A LOT of International calls to US, Canada or UK, you could purchase a month of unlimited international plan calling for about $15 usd. If you plan on coming back and want to keep your phone active, you can go to the Digicel website and set up an monthly automatic top up to keep your sim & phone number active. About $8 monthly cost will suffice to get 480 credits which keeps the phone active for 35 days. I used to top up with $4 monthly cost but when I arrived in between the expiration & the next top up date, my phone was inactive until I went to a street vendor to buy minutes to reactivate my sim so now I just do the higher amount. The credits accumulate and when I get to Jamaica, no worries! My phone is ready to go.