IP networks will feel traffic pain in 2009. By Dave Rosenberg

Many are concerned about cell phone networks getting overwhelmed on Tuesday during the U.S. presidential inauguration.

Cell phone networks are built to be oversubscribed, using statistical analysis to bet against a certain of users flooding a network all at the same time. While it's never been a fool-proof strategy, it's worked reasonably well until recently when smartphones and bandwidth-intensive applications have moved to mobile devices.

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