ZyXEL Communications Will Demonstrate ADSL Interoperability with Major DSLAM Partners at International 2000 Consumer Electronics Show

ZyXEL's Prestige 641 Provides Standards-Based Interoperable ADSL Solution to Bring Broadband Access to the Nation's Most Aggressive Deployment of DSL Services Hsinchu, Taiwan, January 5, 1999 - ZyXEL Communications Corp., an innovator and a leading supplier of Digital Subscriber Line (DSL) customer premises equipment (CPE), today announced that it will be showcasing its Prestige 600 series of ADSL CPE with DSL Forum at CES 2000 in Las Vegas from January 6-9th in booth #4419. In step with its effort to enable the ADSL mass deployment, ZyXEL will team with major key leaders of central office equipment (COE) from Alcatel, Ericsson, Lucent, Nokia, Nortel, Pairgain, and Samsung to demonstrate interoperability of our ADSL solutions. DSL Forum, which is a home replica showcase, will host more than 40 leading networking and telecommunications companies to illustrate some of DSL's CPE applications to consumer's daily lives. The ADSL CPE showcase at ZyXEL's booth includes the company's most recently introduced Prestige 641, and highlights of multi-vendor interoperability which provides SOHO users with a Standards-Based, Fast, Affordable, and Ease-of-Use for ADSL solutions. "We are pleased to team with these leading CO equipment vendors to showcase the broadband solution of choice for the next millennium," said Gordon Yang, Vice President of ZyXEL Communication Inc. "Interoperability with these vendors demonstrates that ZyXEL's ADSL solutions can meet service provider demands for interoperable DSL solutions as well as our commitment to enable the ADSL mass market, but most importantly, to ensure the end users a simple, painless process of getting up and running with high-speed connection". With a proven test records of interoperability from several major CO, consumers can now be sure and confidently when choosing ZyXEL Prestige 641 - ADSL Router as their ideal solutions for high performance applications like telecommuting lightning-fast Internet Access, seamless remote networking, interactive gaming, video conferencing into plug-and-play realities. About the Prestige 641 ADSL Router ZyXEL's Prestige 641 represents the industry's first router to implement PPPoE with multimedia-supported NAT. This unparalleled design enables LAN users to enjoy the flexibility of existing dial-up RAS Internet infrastructure, and permits an unlimited number of users to access the Internet with a single IP while running the on-line multimedia applications such as NetMeeting, CUSeeMe, IRC, RealPlayer, and ICQ at the same time. ZyXEL developed the Prestige 641 to interoperate seamlessly with the major DSLAMs, as well as the DSL and ATM infrastructure. The Prestige follows industry standard Discrete Multi-Tone (DMT) T1.413 Issue 2, and has been designed to be compatible with the forthcoming G.lite standard through a free firmware upgrade. About DSL Forum DSL Forum (formerly ADSL Forum) is a non-profit international organization of about 275 companies representing the world's computer, networking and telecommunications industries. Established in 1994, it is dedicated to the development and mass market deployment of broadband communications technologies based on DSL over existing copper telephone cable infrastructures. Further information about DSL Forum is available at http://www.adsl.com About ZyXEL Communications ZyXEL Communications Corp.,, located in Hsinchu, Taiwan, is a leading supplier of broadband Internet access devices, routers, ISDN terminal adapters, and high performance modems. The firm provides complete networking access solutions for Internet/Intranet/VPN/Extranet applications, and also provides networking service solutions in the design, implementation and maintenance of networks for small- to medium-sized businesses. ZyXEL is listed on the stock market, with distributors in over 70 countries, servicing customers in over 150 countries spanning all seven continents. For more information on ZyXEL Communications, visit our Website at http://www.zyxel.com.