Google Voice

[takeshi]

It depends on how you have your GV caller-ID setup, since the favs uses caller-ID to figure out how to charge. Soooo....

If you have GV configured to pass-through caller-ID of the original caller (so you can see who is calling you), then you are charged Verizon minutes when they call you since Verizon sees the caller-ID as being the persons real number.

...unless it's a Verizon number (assuming you have free mobile-to-mobile) or a number in your list, of course.