I am going overseas for a month. I would like to bring my phone and only use it to connect to wifi. Is there a way I can do this without getting charged extras? I heard putting your phone in Airplane mode and only using wifi is a solution? Will this work?
Yup, airplane mode on + WiFi is a great way of preventing roaming charges. You can also remove the SIM card from your phone entirely if you're worried about accidentally turning the cell radio and data back on.