Laurie Falconer
Centillium Communications, Inc.
(510) 771-3647
[email protected]


Interspeed Integrates Centillium's CopperLite˙ Turbo Chipsets Into Its EdgeSpeed˙ Access Routers

FREMONT, Calif., June 28, 2000 - Interspeed, Inc. (Nasdaq: ISPD), a leading provider of digital subscriber line (DSL) access solutions, announced today that it has selected Centillium Communications, Inc. (Nasdaq: CTLM) as provider of chipset solutions for integration of the asymmetric DSL standard (ADSL), G.lite into its EdgeSpeed˙ access routers. Earlier this month, Interspeed introduced a 24-port, G.lite (ADSL) line module and a new high-density, 19-inch chassis called the EdgeSpeed 800 access router.

Interspeed's new EdgeSpeed G.lite line module is fully compliant with the International Telecommunication Union's (ITU) G.992.2 (G.lite) standard, providing data rates up to 512Kbps upstream and up to 1.5Mbps downstream, or up to 3.0Mbps downstream in turbo mode. At 1.5Mbps downstream this gives subscribers a 25-times boost in performance over typical 56K analog modems. G.lite also simplifies the installation and provisioning of DSL circuits, and is especially useful in campus-wide and multi-tenant unit (MTU) deployments (e.g. hotels, office parks, universities, retail malls) because it supports cost-effective high-speed broadband Internet services simultaneously with single-line analog voice service. EdgeSpeed G.lite line modules are compatible with the EdgeSpeed 500, 800 and 1000 chassis.

"Through Centillium's innovative new technology, we can initially deliver a high density, low power 1.5Mbps G.lite solution to our customers that can be upgraded to support the faster turbo mode, 3.0Mbps downstream data rates," said Kenneth Osowski, marketing vice president of Interspeed, Inc. "These benefits allow our customers to maximize profits while minimizing costs, and are key elements to their successful mass-market deployment of ADSL."

The EdgeSpeed 800 is designed for use in any Central Office (CO), Competitive Local Exchange Carrier (CLEC) data center or in-building premises requiring high port densities in a standard 19" rack mount chassis. The chassis supports two system modules and up to 10 line modules, a fan tray assembly, and either -48VDC input power or optional AC power.

About Interspeed Inc.
Interspeed, North Andover, MA, designs, develops and markets advanced high-speed communications solutions based on digital subscriber line (DSL) technology. Its products enable data communication service providers, such as competitive local exchange carriers, Internet service providers, and owners of multi-tenant units (MTUs) to utilize the existing copper wire infrastructure to deliver high-speed data access to customers. Interspeed offers the industry's only single-platform system that integrates the principal components required to offer DSL service, including signal concentration, routing, switching and network management. Unlike traditional DSL products, Interspeed's DSL Access Routers can offer customers a highly scalable and flexible solution at a lower total cost of ownership.

About Centillium Communications
Centillium Communications, Inc. is combining technical innovation and customer commitment to make broadband communications a market reality. Centillium consistently delivers value to its customers by providing broadband networking systems for applications across all market segments. The company designs and markets communications chipset solutions for central office equipment, digital loop carrier (DLC) line cards, and customer premise equipment for Digital Subscriber Line (DSL), Voice over Packet (VoP) and Premise Networking. The Centillium Communications headquarters are located at 47211 Lakeview Blvd., Fremont, CA 94538. Additional information is available at

Forward Looking Statements
Except for historical information contained in this press release, the foregoing contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially from those indicated by such forward-looking statements based on a variety of risks and uncertainties, including the risks and uncertainties relating to actual quantities and timing of any orders received under the contract and the successful development and market acceptance of Centillium's new products. The company assumes no obligation to update these forward-looking statements to reflect events or circumstances after the date hereof. Information about potential factors that could affect Centillium's financial results is included in Centillium's Annual Report on Form 10-K and most recent Quarterly Report on Form 10-Q, available for viewing on the Securities and Exchange Commission's website at

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