So what I mean is that you can start a call in your house in the Wi-Fi hotspot, you can get in your car and talk until the battery's dead -- which would be like 10 minutes --  And the call will continue to be free.
Ce vreau sa spun este ca atunci cand incepi o convorbire acasa, in reteaua Wi-Fi, poti sa te urci in masina si sa vorbesti pana ti se termina bateria - ceea ce ar fi cam in 10 minute --  si convorbirea va continua sa fie gratuita.