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The Philadelphia-based company agreed last Thursday to collaborate with BitTorrent Inc. and develop a better system for managing congestion. Comcast has said it must clamp down on heavy users of Internet bandwidth so others won't be slowed down.

Until the new traffic-management system is fully tested and deployed, expected by year's end, Douglas said the faster Comcast service would still be subject to hampering.

"Just because we increase all the roads in Philadelphia to eight-lane highways doesn't mean we can take out all the traffic lights," Douglas said. "It's going to take a little bit of time to get this new system in place."

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