calling cell phone in Negril from the U.S.

last couple years i have just been using what's app. i have one friend though w/ out a smart phone so would like to call him every so often. suggestions on the least costly way to call? thank you

Boss Revolution is the latest and greatest that I use...…
stay away from companies that charge a monthly fee..

Cool Runnings, Marko

thanks Marko, ill give it a shot. i do remember pennytalk charged a fee