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Westell Adds DMH to DSL Modems
July 23, 2003
By OpticallyNetworked Staff

Westell Technologies Inc.(NASDAQ:WSTL), an Aurora, Ill.-based company that provides broadband products, service and conferencing solutions for carriers, service providers and business enterprises, yesterday announced that it has developed a new DSL modem that incorporates patent-pending DMH (Dynamic Multi-Hybrid) technology.

DMH technology is designed to improves DSL performance by as much as five times on DSL lines with bridged taps. Westell reports that it believes that its modems incorporating DMH technology offer DSL service providers the opportunity to reduce operational expenses, expand their revenue and increase their service availability without additional network capital investment such as a DSLAM (Digital Subscriber Line Access Multiplexer) upgrade.

Accordint to Westell, its DMH technology helps address long-standing bridged tap problems, which can severely impair DSL service quality, download speed and in some cases prevent the provisioning of DSL service.

Westell's WireSpeed model 2200 can, the company claims, deliver a 300-percent improvement in downstream rate over that of a conventional DSL modem with a typical 250-500 ft. bridged tap. This improvement allows service providers to successfully provision DSL services at distances further from the central office than previously obtainable.

According to the Yankee Group, a Boston-based reserach firm, there are approximately 61 million access lines in the United States longer than 12,000 ft. At lengths in excess of 12,000 ft., Westell said, provisioning DSL service cost effectively proves troublesome using existing modems.

DSL lines with bridged taps effects currently present a chronic provisioning and customer support problem for service providers. By helping to eliminate the bridged tap affect, DMH technology dramatically reduces the service provider's need for costly customer support and truck dispatches.

Westell's WireSpeed modem with DMH technology is a single-ended modem solution that works with standard ADSL central office DSLAMs.

"DMH represents a significant technology advancement expanding the service coverage area for our customers while also improving the quality of the DSL broadband service being delivered," said Gordon Reichard, Jr., vice president, marketing at Westell. "With DMH technology, our service provider customers will improve the service they deliver their customers while simultaneously lowering the cost of delivering that service."

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