To turn data roaming on or off, from the homescreen, swipe the bottom screen to and tap Settings. Note: Data roaming is off by default. Enabling Data roaming will allow the device to attach to foreign wireless network signals when available. International roaming charges will apply. This setting does not apply to voice access which requires additional provisioning for usage on international networks. To learn more, visit the AT&T International website.
Tap Domestic Data.
Tap the Domestic Data toggle to turn on or off.
To turn international roaming on and off, from the Broadband screen, tap International Roaming.
Tap the International Roaming toggle to turn on or off.