Romanized Bangla: O bujhlam na to, sim diyei ba sim operator doyei to chalate hoy. .. 1. je kono sim, sim palte palte o use kora jabe. 2. ek modem diye ba 1 phone diye 1 tai account chalano jabe. 3. trickbd te pawa free net diye chalano jabena ba wifi diye chalano jabena. wifi te chalale private VPN use kore chalano jabe