So I've been using JAJAH to call my friends in the US/Canada the last couple of days and what can I say.. IT'S F*CKING AWESOME!
All you gotta do is sign up (no credit card bullsh*t) and make your friends sign up. Now you get free minutes everyday to call your friends. Call quality is absolutely perfect (much better than skype since it doesn't use your internet connection)!
Use these links,
(Note that this is free from JAJAH's part but you'll have to pay your carrier if they charge you for incoming calls. If you have unlimited incoming like me, you're good)