TranSwitch Corporation’s Atlanta 2000 Processor Supports "High Definition Voice” for the Japanese Market

TranSwitch® Corporation (NASDAQ: TXCC), a leading provider of semiconductor solutions for the converging voice, data and video network, today announced that its Atlanta™ 2000 communications processor product family will support Wideband Voice functionality which is a key requirement specified by Japan’s telecommunications service providers. Wideband voice, also known as high definition (HD) voice, provides deeper clarity and a better audio experience than today’s telephone network. Service providers worldwide are in the process of modernizing their networks from legacy circuit-switched infrastructure to packet-switched technology capable of delivering voice, video and data services. These networks use voice-over-IP (VoIP) technology, which includes capability for wideband voice.

Atlanta 2000 supports up to four channels of wideband voice conforming to an International Telecommunications Union’s (ITU) G.711.1 specification which is has been selected for deployment in Japan. Because of its unique architecture and powerful processing capabilities, Atlanta 2000 can simultaneously support two Gigabit, wire-speed router functionality under short-packet (i.e. worst case) traffic conditions and four wideband voice channels without deterioration of either the voice quality or the data performance. This remarkable achievement is a result of Atlanta 2000’s unique architecture which integrates two RISC cores with a DSP and off-loads voice processing from the RISC cores to the DSP. With this architecture, all of the power associated with Atlanta 2000’s triple issue, Xtensa LX2 processors can be focused on routing packets and generating high ‘caffeine score’ Java benchmarking scores, resulting in best-in-class performance.

"TranSwitch is pleased to announce our support of the G.711.1 wideband codec standard on the Atlanta 2000 platform” said William McDonald, Director of Marketing at TranSwitch Corporation. TranSwitch’s support of this codec confirms our continuing commitment to the Japanese market. Our long tradition of close collaboration with leading equipment suppliers and network operators in Japan began with the introduction of our Palladia and Maximus ADSL2++ modem chip products as the former Centillium corporation. Our Mustang GEPON ONU chip products currently play a major role in Japan’s fiber-to-the-home deployment initiative. Our Atlanta 2000 communications processor is designed to meet or exceed the demanding requirements of the Japanese market, and is ideally suited for next generation network (NGN) home gateway and small-medium business (SMB) router applications of the Japanese market.”

About Atlanta 2000

Atlanta™ 2000 is a family of communications processors optimized for Gigabit-rate packet processing applications. The Atlanta 2000 product family provides best-in-class performance at the lowest power and bill-of-materials costs for a range of applications that require IP packet routing, encryption and media processing at data rates up to two gigabits-per-second. These applications include secure broadband gateway routers, SSL/TLS and IPSec VPN acceleration, and micro-PBX. Atlanta 2000’s value proposition is enhanced by an open software model, publicly available Developers Edition Toolkit reference software, and mature, field tested DSP and VoIP firmware, enabling equipment vendors to bring products to market faster at a lower cost with higher return on investment.

About TranSwitch Corporation

TranSwitch Corporation (NASDAQ: TXCC) designs, develops and markets innovative semiconductors and technologies that provide core functionality and complete solutions for voice, data and video communications network equipment. As a leading supplier to telecom, datacom, cable television and wireless markets, TranSwitch customers include the major OEMs that serve the worldwide public network, the Internet, and corporate Wide Area Networks (WANs). TranSwitch devices are inherently flexible, many incorporating embedded programmable microcontrollers to rapidly meet customers’ new requirements or evolving network standards by modifying a function via software instruction. TranSwitch implements global communications standards in its VLSI solutions and is committed to providing high-quality products and services. TranSwitch, Shelton, CT, is an ISO 9001:2000 registered company. For more information, visit www.transwitch.com.

TranSwitch and Atlanta are registered trademark of TranSwitch Corporation. Tensilica and Xtensa are registered trademarks of Tensilica, Inc.