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What O.J., Katrina, and 9/11 did to AT&T's network

Major events create serious traffic jams on even the most robust mobile networks.

Normal call volume

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AT&T normal volume

Among the many things AT&T monitors is overall call volume traffic. The chart above shows a typical day, with calls reaching a peak a little before noon ET and remaining steady until about 8 p.m.

By David Goldman   @DavidGoldmanCNN - Last updated October 09 2012 06:46 AM ET
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