How can I use GV using wifi!

[boredandtattooed]

ive had a GV number for a long time, rarely ever actually used it though..

i thought the whole point of GV was to NOT use minutes??

in the begining remember we could set it up to be free incoming and outgoing minutes, as far as our carriers were concerned, atleast thats how i remembered it.. guess i never actually tested the theory though by using it, then going to usage and checking for increase..