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Nokia Siemens claims world record for copper DSL speeds


October 29, 2010

Nokia Siemens Networks has recorded data transmission speeds of 825 Mbps over copper using something called Phantom DSL
(Image: Wiki Commons)

Nokia Siemens Networks has recorded data transmission speeds of 825 Mbps over copper using something called Phantom DSL (Image: Wiki Commons)

Just when the future of broadband appears to be tipped towards the mass roll-out of optics, Nokia Siemens Networks proves that there's still life in the old copper wires yet. Using a virtual channel to supplement physical copper wire, data transmission speeds of 825 Mbps were recorded. Okay, so it was only over a distance of 400 meters (just over 1,312 feet) but the circuit managed to sustain 750 Mbps when the distance was increased to 500 meters (about 1,640 feet), with the technology promising broadband speed increases of between 50 and 75 per cent over existing bonded copper lines.

Looking into ways of improving the existing copper infrastructure probably won't stop the networks from having to invest in optic fiber altogether, but it might serve to put off that huge investment just a little longer – especially if speeds like those demonstrated by Nokia Siemens Networks are anything to go by. The super-fast speeds mentioned earlier were made possible using "circuits that involve the creation of a virtual – or 'phantom' – channel to supplement the two physical wires that are the standard configuration for copper transmission lines."

Eduard Scheiterer from the company said that "the innovative use of technologies such as phantom circuits helps operators provide an efficient last mile connectivity with existing copper wires," helping to prolong the life of existing infrastructure. Phantom DSL is set to find its way to the company's Digital Subscriber Line Access Multiplexer products in the near future, having first been showcased during Broadband World Forum 2010 in Paris recently.

About the Author
Paul Ridden While Paul is loath to reveal his age, he will admit to cutting his IT teeth on a TRS-80 (although he won't say which version). An obsessive fascination with computer technology blossomed from hobby into career before the desire for sunnier climes saw him wave a fond farewell to his native Blighty in favor of Bordeaux, France. He's now a dedicated newshound pursuing the latest bleeding edge tech for Gizmag. All articles by Paul Ridden

i hope our supreme leader Princess Gillard is looking at this before she reaches into her shallow pocket and pulls out a fifty.... When i say a fifty i mean $50 000 000 000....


Dan79, Most people can\'t get dsl now because there are already insufficient pairs avalable back to the exchange and they are on pair gain systems.

Phantom dsl is a good name for it since it requires the use of phantom copper cable pairs that simply dont exist in real world situations to work.

Gregory Bradley

Is that M\'b\'ps or M\'B\'ps?... Cause we already have 2Gbps broadband lines over existing copper wire DSL networks using Nokia Siemens modems..

Maikro Durst
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