I use Google voice. You must set your homepage to Google, load Google Chrome, then load Google voice. (Chrome actually made my computer much faster.)
You may have to mess around somewhat to get it to work. If you have questions on how to do it, just Google it.
The great thing is it is video calls, or just voice. Your choice. Free and worked for us last year/this year from BZ to US and Canada, free. You can call any cell phone, hard line, or computer. It worked great for us. Just find a good connection. You will probably want to set this up before departing so you know it is working.
Incoming calls from friends outside of BZ will be charged. (to their CC) But at least you can call anybody you like for free.
Last edited by tropicguy; 07/09/12 10:06 AM. Reason: added info