For companies with employees traveling internationally, the ability to stay connected with mobile devices is imperative. Unfortunately, this generally means astronomical roaming fees. While domestic wireless calls in an optimized pooled plan can be as little as 5 cents per minute and "unlimited" data plans provide data connectivity at a fixed cost of $40 to $50 per month, international roaming usage charges for U.S. customers are typically around $1.50 per minute, 50 cents per SMS, and $5 to $10 per MB of data.