'DMT' Wins the Vote as the Only Worldwide Standard for VDSL from IEEE 802.3ah and T1E1.4.

Business Editors/High-Tech Writers

FREMONT, Calif.--(BUSINESS WIRE)--June 26, 2003

Single Standard Selection Will Speed Mass Deployment of Broadband

Services Such as Triple-Play of Voice, Data, HDTV, Video;

FTTP and FTTH Extension; MxU; and More

Ikanos Communications, developer of Smart Silicon for Profitable Broadband(TM), today announced that Discrete Multi-Tone (DMT) is now the worldwide line-coding standard for Very-High-Bit-Rate Digital Subscriber Line (VDSL) technology. The IEEE's 802.3ah Ethernet in the First Mile (EFM) Task Force selected DMT as its worldwide line-coding standard at its meeting in Ottawa, Canada, this week. Last week T1E1.4 Working Group selected DMT as the VDSL line-coding standard at its quarterly meeting in Anaheim, California. VDSL-DMT offers the highest VDSL performance, up to 150 Mbps, and the longest reach, up to 13,000 feet.

The selection of DMT by both standards bodies paves the way for carriers to expand their broadband footprint around the world. With their equipment suppliers now designing to a single standard, carriers will have more flexibility, buying power, and choice. A Single standard also helps carriers ensure network interoperability.

VDSL-DMT deployments have already begun in Asia (Editor's Note: See the announcement on June 18, 2003 titled, "Korea Telecom Delivers 50 Mbps VDSL Services"). Services enabled by VDSL-DMT include Fiber-to-the-Premise (FTTP) Extension; Fiber-to-the-Home (FTTH) Extension, which is particularly strong in Japan; the triple-play services include voice, video, HDTV, and data from both the Central Office (CO) and Remote Terminal (RT); and Multi-Tenant/Multi-Dwelling Unit (MxU) services.

"The IEEE and T1E1.4's selection of DMT as the only standard for VDSL is a turning point for the telecommunications industry," said Rajesh Vashist, president and CEO of Ikanos. "Suddenly the bandwidth available over existing copper infrastructure jumps from a few megabits to over 100 Mbps. Carriers can take advantage of that bandwidth to create powerful new services and applications that will allow them to generate significant new revenue streams. Consumers will benefit from increased competition, as carriers vie to serve them with a host of new high-speed service options."

Since production quantities of its VDSL-DMT chipsets became available in Q4 of 2002, Ikanos has shipped more than 500,000 ports. The company's high-performance SmartLeap(TM) VDSL-DMT chipset is the first to support all international VDSL-DMT standards for Europe, Asia and North America, as well as ATM and Ethernet protocols, in a single chipset. The company's SmartLeap(TM) 8800 A/VDSL chipset is the first to support ADSL, ADSL2, ADSL2+, and VDSL-DMT standards complying with ETSI, ANSI, and ITU-T standards. Equipment vendors use the Ikanos chipsets to develop end-to-end solutions for the Fiber-to-the-Premise (FTTP) and Fiber-to-the-Home (FTTH) Extensions, Multi-Tenant/Multi-Dwelling Unit (MxU), and Central Office/Remote Terminal (CO/RT) markets, while slashing time to market and lowering development, manufacturing, and inventory costs.

Equipment vendors around the world have designed products using Ikanos programmable chipsets, including Sumitomo Electric Industries  (SEI), NEC, Samsung, Hyundai Networks, Dasan Networks, Inc., Woojyun Systec, Millinet, and Marconi.

About Ikanos Communications

Founded in 1999 and based in Silicon Valley, Ikanos Communications has created a new class of silicon that serves the entire range of worldwide broadband markets and applications with a single programmable chipset. Ikanos' industry-leading A/VDSL chipset solution includes the SmartLeap(TM) family for Broadband Access Concentrators and the CleverConnect(TM) for Customer Premise Equipment. These chipsets enable equipment vendors to serve many different carriers worldwide while slashing time to market and lowering development, manufacturing, and inventory costs. Ikanos also offers the Ikanos Programmable Operating System(TM) (iPOS), which consists of firmware and APIs. iPOS enables equipment vendors to dynamically configure LRFE, EFM, VDSL-DMT 998, VDSL-DMT 997, VDSL-DMT Flex, ADSL, ADSL2, and ADSL2+ on Ikanos chipsets.

Ikanos Communications provides comprehensive offerings that encompass silicon, embedded software, reference designs, high-level APIs, and extensive documentation. Ikanos is a member of, and contributes to, ANSI, the IEEE 802.3 EFM Study Group, DSL Forum, and ITU-T. For additional information about Ikanos Communications, please visit the company's Web site at www.ikanos.com or contact Connie Henry at 510/438-6276 or [e-mail].

(C) 2003 by Ikanos Communications. Ikanos Communications, Ikanos, and the Ikanos logo design are trademarks of Ikanos Communications.