What is Data Roaming?
Data Roaming is when you use data connections such as internet and email internationally outside of your carriers coverage. “Roaming” in the sense roaming out of the covered zone. It is important to have the feature turned off to avoid any unwanted roaming costs. Data connections can get expensive fast without you even realizing it. Just downloading your latest emails for a few days could cost hundreds of dollars depending on where you are and how many emails you normally get.
For iPhone this is what the manual says:
“Data Roaming turns on Internet and visual voice-mail access over a cellular data network when you’re in an area not covered by your carrier’s network. For example, when you’re traveling, you can turn oﬀ Data Roaming to avoid potential roaming charges. By default, Data Roaming is turned oﬀ.”
In order to access the internet without roaming charges you can use WiFi. Just make sure that “Data Roaming” is off and “WiFi” is on. When you are in the area of a free Fifi zone then you are fine.
Data roaming is for when roaming internationally with a carrier outside of the U.S. Data roaming is off by default with the iPhone, which is for data or internet access via a carrier’s network when outside of the U.S. This does not prevent placing or receiving calls and the same for SMS when roaming internationally. You must request international roaming be enabled for your line/ number/ account with AT&T in order to do so.
The defalt settings for data roaming are OFF for iPhone and Motorola Android.
Check out the step by step article on how to turn off Data Roaming.