I have had my magic jack for over a year now. I use it to call my mom...she lives in Canada, so I use the call forwarding feature and just leave her number logged in. then I call my magic jack number (you set up a local number) and I can yak at my mom for free...works great.
My daughter who lives in canada has her magic jack phone number as a local number here where we live in california and when we call that number it is also free .