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Over the last decade the wireless industry has witnessed tremendous growth. During a recent one year period, voice traffic increased by twelve percent and mobile data traffic more than tripled worldwide. This growth trend is expected to continue, with some forecasts suggesting that worldwide mobile data traffic will surpass voice traffic by 2011 and increase ten-fold by 2015. While mobile operators may look forward to the revenue opportunities that mobile data presents, they must also be prepared to deal with the many challenges that it offers while continuing to deliver more efficient voice services to their customers.
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