What is the difference between Google Voice “Callback” and “Calling Card”?
GV Callback uses an internet connection to establish a “click-to-call” much as if you were to go to http://google.com/voice/m in your phone’s web browser. Once you click “call”, you will then a few seconds later receive an incoming call from your own number that you must answer. GV Calling Card works like a calling card… it places an outgoing call to your GV number, then dials “2″ to place an outgoing call, then dials your intended number. If you don’t understand it, then try calling your GV number manually. This method does not require an internet connection.
