ADTRAN’s Total Access 5000 Earns RUS Acceptance

ADTRAN’s Total Access 5000 Earns RUS Acceptance

USDA Acceptance Marks Key Milestone for Independent Carriers

HUNTSVILLE, Ala.—(November 8, 2006)—ADTRAN, Inc. (NASDAQ: ADTN), a leading supplier of next-generation network solutions, today announced that its Total Access^® 5000 Multi-Service Access and Aggregation Platform has received RUS Acceptance from the Technical Standards Committee A (Telecommunications) Advanced Services Division of the United States Department of Agriculture Rural Utilities Service (RUS).

The Total Access 5000 platform revolutionizes converged networking by enabling service providers to deliver next-generation services like IPTV and Voice over IP (VoIP) across an all IP/Ethernet core without stranding their legacy service base, thus creating a scalable service delivery model across the network.  The Total Access 5000 easily supports deployment with 100% broadband capable access lines, helping carriers further reduce the capital and operational costs associated with broadband turn-ups.

“The RUS acceptance is important to ADTRAN as it reinforces our commitment to the independent carriers in the area of broadband connectivity,” said P. Steven Locke, vice president of sales, Service Providers.  “Helping rural providers stay current and continue growth with cost-effective, reliable solutions is one way we can help alleviate the digital divide within the United States.”

The Rural Utilities Service, a division of the U.S. Department of Agriculture, offers funding and low-cost loans to service providers investing in networks to serve rural communities. RUS acceptance allows service providers to purchase ADTRAN’s Total Access 5000 systems and other ADTRAN access equipment with these funds.

ADTRAN’s list of RUS Accepted products is extensive and includes its Total Access (TA) 3000, TA 3050, TA 1500, TA 1200 DSLAM, TA 850, and TA 750, TA 4303, MX2800, MX2810, MX2820, OPTI-3, and OPTI-6100^®.

About ADTRAN

ADTRAN, Inc. is a leading global provider of networking and communications equipment, with an 18-year history of profitability and a portfolio of more than 1,400 solutions 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 U.S. service provider and many global 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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