On its own VDSL2 tops out at about 100Mbps over a distance of 400 meters, so to get to three times that capacity Alcatel-Lucent combines a number of different technologies. Alcatel-Lucent's first trick is to use two copper pairs at the same time, a technology called bonding. Next Alcatel-Lucent uses a feature it has developed called Phantom Mode to create a third virtual copper pair that sends data over a combination of the two physical ones.
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