Press Contact:
Laurie Falconer
Director, Marketing Communications Centillium Communications, Inc.
(510) 771-3647
[email protected]


Flexible Entropia Platform Offers Support for Voice Over ATM and IP with 64, 48, 32, and 24 Voice Channel Densities for Enterprise Premise Equipment

FREMONT, Calif., February 13, 2001- Centillium Communications, Inc. (Nasdaq: CTLM), innovator of broadband communications technology, today built on its industry-leading Entropia Voice over Packet (VoP) family of solutions by launching a set of chips with various channel densities targeting the enterprise market. The new set of Entropia chips is ideally suited for Intelligent PBX (iPBX) devices and Integrated Access Devices (IADs) for enterprises.

The company previously introduced a chip - also part of the Entropia VoP solution set - supporting 336 channels of Voice over ATM (VoATM). The previously introduced chip is geared for equipment for multiple network architectures and is key to development of VoP gateways and Digital Loop Carriers (DLCs). Because of its unique ability to connect any network to any network, Centillium's system-on-a-chip gives service providers the ultimate flexibility needed to offer full support to their customers.

"The Entropia product is truly a complete system-on-a-chip, making it easy and economical for our customers to integrate voice and data functionality in one compact and convenient piece of equipment," said Babu Mandava, General Manager, Networking Business Unit, Centillium Communications, Inc. "The Entropia chip for enterprise premise equipment goes beyond gateways and DLCs to be an ideal choice for vendors of iPBXs, IADs and other small gateway devices that need to make the most efficient use of space and bandwidth."

Entropia VoP Chip
The highly integrated Entropia chip combines hardware, firmware and software to deliver complete high density, low power packet voice capability in a single small form-factor device. The Entropia system-on-a-chip includes a Digital Signal Processor (DSP); software for voice processing, including compression, echo cancellation, ATM (including ATM Adaptation Layer 1 or 2 - AAL1/AAL2) and Real-time Transport Protocol over User Datagram Protocol over Internet Protocol (RTP/UDP/IP) and other protocol software processing; and host Application Programming Interface (API) software. To allow ultimate flexibility and field upgrade-ability for future voice coders, network protocols, and other features the Entropia chip is software-programmable. The Entropia chips for the enterprise market support industry-leading 64, 48, 32, or 24-channel densities using Pulse Code Modulation (PCM) or Adaptive Differential PCM (ADPCM).

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, DLC line cards, and customer premise equipment for Digital Subscriber Line (DSL), premise networking and Voice-over-Packet. Centillium Communications, Inc. is 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 most recent Quarterly Report on Form 10-Q, which can be viewed at the Securities and Exchange Commission's website at

Centillium Communications and the Centillium logo are trademarks of Centillium Communications.

Copyright 2001 Centillium Communications, Inc. All rights reserved. All other products or service names mentioned herein are the property of their respective owners.

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