When I use Skype it says," it will now dial xxx-xxx-xxxx to connect". Now, is it dialing on the cellular network or is it dialing on the wifi network. If it's dialing on the cellular network I can't use it outside of the USA as the rest of the world is GSM. If it's dialing on the wifi connection, you could be dialing from almost anywhere in the world for practically free. Does anyone know how this works?