I am going to Spain in a week and am unfamiliar with Verizon's international billing policies. I would like to use my phone without a lengthy bill when I return to America, but I have some clarification questions. First, can i receive and send messages WHILE connected to wifi in Spain, free of charge? Will these messages be Imessage (assuming I am talking to a person with an iphone also) or SMS texts? Can I access data and the internet free of charge while in wifi? Lastly, do I need to keep my phone on airplane mode at all times outside of wifi to avoid receiving messages and consequently being billed?