We all love our iPhones, and of course, they go everywhere with us. What about when you leave the comfort of AT&T’s network and travel abroad? Can I take my iPhone with me? Will cost me additional? These are very crucial things to know while planning that trip, and could save you from some massive inconveniences and not to mention a bundle of your hard earned cash. In that post, I will address some common questions and concerns, and give you the data you need to know before you go.

First things first, the iPhone uses the GSM cellular network. GSM is the most common type of cellular signal in the world, and more than 80% of all cellular networks in the world use that technology. The iPhone, is what is known as a ‘quad-band’ GSM phone. that means it supports all 4 of the common GSM frequencies in use today. that means of course, that yes, you can take your iPhone with you on your trip!

Of course, it is not just that easy. To use your iPhone abroad, there are several preparations you need to invent, to ensure you are not slapped with a huge bill. By huge, I mean up to four figures, don’t mess with that! To put it in prospective, 1 YouTube video, could cost as much as $40 dollars to stream without the proper plan

features. You will need to have an worldly roaming package added to your plan before you go.

For documents, AT&T offers two different options for your trip. It is not pro-rated, and it is charged for one full month, even whether your trip is not that towering. For $24.99 and $59.99 you can get 20MB or 50MB of documents, respectively. whether that is not for you, prepare certain you have worldly info Roaming toggled off on your iPhone. To do that, go to Settings > General > Network > details Roaming. that will ensure your iPhone will not automatically ping the Web when you are not watching, for example to check mail. You will still be able to use WiFi, at no charge, just as you can here.

For voice, AT&T offers universal voice packages. Calling rates vary from country to country, so you will have to inform AT&T of which country you are going to, so they can add roaming for that country to your plan. A list of rates by country can be found here.

If you are visiting Japan or South Korea, unfortunately, you will not be able to use your iPhone. Those countries use the 2100MHz W-CDMA network technology there, and the iPhone is not compatible with it (yet!).

For more data, please visit AT&T’s universal page.

Orginal post by Chase Higgins