ADTRAN Launches Innovative IP Phones to Complement Broad Line of VoIP Solutions

New IP 700 Series Phones Address Business Needs for Hosted and Premises-based IP Telephony Solutions

Contact:

Tammie Dodson
ADTRAN, Inc.
256.963.6739
press@adtran.com

ADTRAN Launches Innovative IP Phones to Complement Broad Line of VoIP Solutions

New IP 700 Series Phones Address Business Needs for Hosted
and Premises -based IP Telephony Solutions

HUNTSVILLE, Ala. - -(April 29, 2008) - -ADTRAN, Inc. (NASDAQ: ADTN), a leading supplier of IP -based networking solutions, today announced a new line of IP telephones. The ADTRAN IP 700 Series of business -class phones delivers an innovative telephone design and complements ADTRAN's broad array of VoIP products including IP Telephony solutions, IP Business Gateways, Power over Ethernet (PoE) switches and routers. These phones are SIP -based and are engineered to meet the needs of both SMB and enterprise users in hosted and premises -based solutions. Attractive price points lower the overall cost of the communication system enabling the transition to VoIP.

The new IP 700 Series includes two phone models: the IP 706 six -button phone, and the IP 712 12 -button phone. These phones feature a large, easy -to -read graphical backlit display with user -friendly menus and features. All phones in the series support advanced functions like Key System Mode, PBX Mode, Busy Lamp Field, Shared Line Appearance and Hands Free Auto Answer. Each phone model offers dual switched Ethernet ports to enable simultaneous voice and PC data access as well as a full -duplex speaker phone and headset capability for hands -free applications. Fully compliant with 802.3af PoE, the IP 700 Series also simplifies connectivity and reduces desktop cord clutter.

"The ADTRAN phones were a perfect choice for our business," said John Adhia, president, Avatar Property and Casualty Insurance. "The phones look great in our office and are extremely easy to set up and use. They have helped us improve our communication both in and out of the office. We want to stay ahead of the competition, and the ADTRAN solution will help us achieve this goal."

"The introduction of the IP 700 Series was the next logical extension to our IP Telephony product line," said Tim Saunders, vice president of product management, ADTRAN Enterprise Networks Division. "Our VoIP products are widely adopted by service providers as part of their hosted solutions. The IP 700 Series will allow ADTRAN to reach further into the IP Telephony market, complementing our existing VoIP products and allowing for further innovation in our premises -based IP Telephony solutions."

The IP 706 six -line phone is currently shipping in North America at a list price of $249, while the IP 712 12 -line phone is shipping in North America at a list price of $299.

About ADTRAN
ADTRAN, Inc. is a leading global provider of networking and communications equipment, with a portfolio of more than 1,700 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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