Optical Multiplexer targets global markets.

Press Release Summary:



Combining SONET, SDH, and Ethernet service capabilities, OPTI-6100(TM) is equipped to address virtually any access or small metro ring application for carriers around the globe. It addresses needs of service providers seeking to expand service capacity and maximize backhaul efficiency.



Original Press Release:



ADTRAN Expands Optical Access Solutions For Global Markets



New Functionality Combines SONET, SDH and Enhanced Ethernet

HUNTSVILLE, Ala.--(June 6, 2005)--ADTRAN, Inc. (NASDAQ: ADTN), a leading provider of network access equipment, today announced its next generation of the OPTI-6100(TM) Optical Multiplexer featuring enhanced Ethernet service capability and SDH for international markets. The OPTI-6100 now featuring both SONET and SDH capability is equipped to address virtually any access or small metro ring application for carriers around the globe.

"The OPTI-6100 addresses the real needs of service providers seeking to expand service capacity and maximize backhaul efficiency," states Jay Letchworth, Optical and Wireless Product Manager for ADTRAN's Carrier Networks Division. "The increased bandwidth and added Ethernet over SONET capabilities will open up new markets."

The increased features of the OPTI-6100 will allow ADTRAN to offer this proven, customer-engineered optical solution to the growing international market.

About ADTRAN
ADTRAN, Inc. is one of the world's most successful network access equipment suppliers, with a 17-year history of profitability and a portfolio of more than 1,300 products for use in the last mile of today's telecommunications networks. Widely deployed by carriers and enterprises alike, ADTRAN solutions enable voice, data, video, and Internet communications across copper, fiber, and wireless network infrastructures. ADTRAN solutions are currently in use by every major domestic service provider and many international ones, as well as by thousands of public, private and governmental organizations worldwide.

For more information, contact the company at 800 9ADTRAN (800 923-8726) or via email at info@adtran.com. On the Web, visit www.adtran.com.

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