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Bulldog Trials 8Mbps DSL Broadband
By: MarkJ - 20 November, 2003 (1:14 PM)

Bulldog has announced trials of its new 8Mbps DSL technology, which will be provided through its 35 LLU (non-BT) exchanges in Central and West London from Hammersmith through to the Docklands:

Bulldog trials 8 Mbps broadband service

Bulldog, the UK's high-speed broadband specialist, today announced the technical trial of a new 8 Mbps ADSL service. Bulldog's design, development and engineering teams will collectively monitor connection stability and data throughput performance on selected trial service lines. The tests will also assess current DSL broadband hardware and PC systems capability for handling the ultra high-speed service.

The 8 Mbps trial is scheduled to run for the next few months and, given good technical results, will be made commercially available on the Bulldog core Central London network in early 2004. The service will offer major benefits to larger SME and corporate organisations, providing higher bandwidths to suit their requirements.

Under the current plan, the service will be configured to feature line rates of up to 8 Mbps downstream and up to 400 kbps upstream, at a business grade 20:1 contention ratio. Unlike other offerings in the market, Bulldog's 8 Mbps service is based on fixed rate technology, guaranteeing the customer full bandwidth provision provided their line is within qualifying range of the exchange. The Bulldog core network of 35 LLU exchanges reaches a potential 50,000 businesses, accessing Central and West London exchanges from Hammersmith through to the Docklands. Downstream bandwidth rate-adaptive services offered by alternative broadband providers vary depending on the distance from the exchange.

Gavin Young, Chief Technology Officer for Bulldog, commented: "At Bulldog we are seeing how far we can push the technical boundaries of current ADSL technology. The 8 Mbps service trial will provide valuable knowledge and understanding of the technicalities involved in the delivery of high bit rate services as we evolve our systems to the next generation ADSL2 and ADSL2+ technologies coming next year."

Next generation DSL technologies, ADSL2 and ADSL2+, will use enhancements to the modulation scheme to offer more efficient transmission as well as operating and maintenance procedures. ADSL2 (ITU G.992.3 / G.992.4) provides new features and functionality targeted at improving performance and interoperability. These include enhanced data rate, reach performance, rate adaptation, diagnostics and stand-by mode features. ADSL2+ (ITU G.992.5) doubles the bandwidth used for downstream data transmission, effectively doubling the maximum downstream user rates, with performance of up to 20 Mbps on phone lines as long as 16.5 km.

Richard Greco, CEO of Bulldog remarked, "With this 8 Mbps technical trial, Bulldog is driving innovation in DSL broadband. Bulldog will continue to design and develop innovative broadband services that offer performance and value for money with unbridled customer support."

For more information on Bulldog's products and services visit http://www.bulldogdsl.com

Further technical details were not revealed, although the language suggests that it's not a 'bonded' ADSL solution; as recently announced by Nildram.

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