TranSwitch to Showcase Premier EoS Transport Solutions with Live Demonstrations at ITU Telecom World 2003.

Business Editors/High-Tech Writers

ITU TELECOM WORLD 2003

SHELTON, Conn.--(BUSINESS WIRE)--Oct. 7, 2003

EtherMap(TM), Envoy(TM), and PHAST(R) Families Take Center Stage

in Geneva, Switzerland

TranSwitch(R) Corporation (NASDAQ: TXCC), a leader in Ethernet-over-SONET/SDH (EoS) technology, today announced that it will showcase its premier VLSI solutions for Ethernet and SONET/SDH transport at ITU Telecom World 2003 in Geneva, Switzerland October 12-18. These include the EtherMap family of highly integrated OC-3 to OC-48 EoS mappers, the Envoy family of versatile Ethernet controllers which seamlessly interface with Intel's IPX series of network processors, and the flexible PHAST family of SONET/SDH framers and overhead terminators. EtherMap and PHAST devices combine seamlessly to provide a complete EoS chip set solution for transporting a broad range of voice and data traffic across the widely deployed SONET/SDH infrastructure. TranSwitch will conduct in-booth demonstrations of live Ethernet transport using several of these devices, which are ideal for adapting Ethernet traffic onto existing SONET/SDH access and metro networks.

TranSwitch's popular EtherMap family of full-function SONET/SDH mappers currently features the EtherMap-3, EtherMap-12, and EtherMap-48 devices. They are especially well-suited for efficiently deploying Ethernet services on existing SONET/SDH infrastructure utilizing high and low order Virtual Concatenation (VCAT or VC) and Link Capacity Adjustment Scheme (LCAS). In combination with the PHAST series of framers, the EtherMap family offers unique EoS application diversity to carriers in the metro edge. Key benefits include multi-port/multi-rate standards compliance, multi-encapsulation capability, and a high degree of bandwidth granularity, resulting in reduced platform cost, faster time-to-market (TTM) and greater revenue generation.

The PHAST family of transport solutions affords easier integration with existing backplanes and provides excellent price/performance cost structure for line cards. The newest members of the family are the PHAST-12N and PHAST-12P multi-rate PHY framers, designed to provide complete system level solutions for OC-12 and 4xOC-3 telecom and datacom applications with the robust protection required by carriers. Major benefits include SONET/SDH standards compliance, reduced software development time, and lower space and power requirements, resulting in faster TTM and significant cost savings. Together with a complete package of development tools, these EoS solutions give network systems providers the power to customize and differentiate their products for today's competitive markets.

TranSwitch representatives will be on hand to demonstrate how these transport solutions intelligently map Ethernet traffic into SONET/SDH systems and adapt Ethernet streams into packet flows, resulting in increased efficiency in existing access and metro networks. With this capability, carriers can profitably deploy new data services, generating additional revenue opportunities without additional capital expense. TranSwitch will exhibit at ITU Telecom in USA Pavilion Booth #225.

About TranSwitch Corporation:

TranSwitch Corporation, headquartered in Shelton, Connecticut, is a leading developer and global supplier of innovative high-speed VLSI semiconductor solutions - Connectivity Engines(TM) - to original equipment manufacturers who serve three end-markets: the Worldwide Public Network Infrastructure, the Internet infrastructure, and corporate Wide Area Networks (WANs). Combining its in-depth understanding of applicable global communication standards and its world-class expertise in semiconductor design, TranSwitch Corporation implements communications standards in VLSI solutions which deliver high levels of performance. Committed to providing high-quality products and service, TranSwitch Corporation, Shelton, CT is an ISO 9001:2000 registered company. Detailed information on TranSwitch products, news announcements, seminars, service and support is available on TranSwitch's home page at the World Wide Web site - http://www.transwitch.com.

Forward-looking statements in this release are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that all forward-looking statements regarding TranSwitch, its operations and its financial results involve risks and uncertainties, including without limitation risks of downturns in economic conditions generally and in the telecommunications and data communications markets and the semiconductor industry specifically; risks in product development and market acceptance of and demand for TranSwitch's products and products developed by TranSwitch's customers; risks of failing to attract and retain key managerial and technical personnel; risks associated with foreign sales and high customer concentration; risks associated with competition and competitive pricing pressures; risks associated with investing in new businesses; risks relating to TranSwitch's indebtedness; risks of dependence on third-party VLSI fabrication facilities; risks related to intellectual property rights and litigation; risks in technology development and commercialization; and other risks detailed in TranSwitch's filings with the Securities and Exchange Commission.

TranSwitch and PHAST are registered trademarks of TranSwitch Corporation.

Envoy and EtherMap are trademarks of TranSwitch Corporation.