Smarten up and avoid roaming and data-usage charges

04/16/2012 | ZDNet

This columnist is telling smartphone users to smarten up when traveling abroad because charges for roaming and data usage can skyrocket when you're away on a business trip. "The amount of data transmitted by smartphones in the background can catch travelers by surprise on trips," James Kendrick writes. He also warns to watch the switch from Wi-Fi to 3G/4G connections.

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