T-Mobile USA today released some guidance for customers who travel internationally with their G1 device. The carrier says that customers can add global roaming for no extra fee before going abroad, but the company warns that third-party applications may turn on data roaming while the customer is traveling.
T-Mobile's official statement says that if a T-Mobile customer wants to use their T-Mobile G1 while outside the country, they should contact customer care before they leave to ask that the WorldClass feature be added to their service at no additional charge. If they choose, customers can also disable data roaming on the G1. This can be done by going through the following steps: Home Screen > Menu > Settings > Wireless Controls > Mobile Networks > Data Roaming.
However, T-Mobile says that because some third party applications available for download on Android Market require access to the Internet and have the ability to turn on data roaming when in use, customers need to pay attention when they download the application. Customers are told whether an application will use this feature prior to downloading.
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