Centillium Communications, Inc.

Laurie Falconer

Centillium Communications, Inc.

(510) 771-3647

[email protected]

CENTILLIUM COMMUNICATIONS JOINS INDUSTRY LEADERS IN DRIVING AUTO-CONFIGURING DSL MODEMS

Centillium Communications Promotes Industry Standard for True Plug-and-Play DSL Modems through OpenDSL Membership

FREMONT, Calif., September 18, 2000 - Centillium Communications, Inc. (Nasdaq: CTLM), innovator of broadband communications technology, today announced it's support for the OpenDSL industry initiative for plug-n-play Digital Subscriber Line (DSL) Customer Premise Equipment (CPE). The OpenDSL initiative is building a standard for auto-configurable CPE, pre-certification testing, and simplification of installation.

OpenDSL is an industry-wide initiative to develop an open plug-n-play architecture for retail-grade CPE interoperability and automated configuration to eliminate truck rolls. OpenDSL is about enabling rapid mass-market penetration of DSL services. Subscribers should be able to purchase any DSL unit at a retail store and set it up themselves. The service provider could then concentrate its efforts on building out central office (CO) facilities to more rapidly spread DSL services worldwide.

"We're very excited about participating in the OpenDSL initiative," said Dori Braun, director of CPE, Centillium Communications, Inc. "Centillium's goals of making DSL a mass market reality through cost-effective, interoperable, plug-n-play CPE match closely with the OpenDSL mission."

The OpenDSL initiative has received endorsement from the DSL Forum and includes DSL industry leaders interested in promoting mass-market availability of broadband services. Addition information is available at www.opendsl.org.

About Centillium Communications

Centillium Communications, Inc. is combining technical innovation and customer commitment to make broadband communications a mass-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, DLC line cards, and customer premise equipment for Digital Subscriber Line (DSL), home networking and Voice-over-Packet. Centillium Communications, Inc. is located at 47211 Lakeview Blvd., Fremont, CA 94538. Additional information is available at www.centillium.com

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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. Information about potential factors that could affect Centillium's financial results is included in Centillium's prospectus and will be included in Centillium's Annual Report on Form 10-K and Quarterly Reports on Form 10-Q, which will be filed with the Securities and Exchange Commission.