Released on: April 29, 2008, 7:18 am

Press Release Author: MRB Public Relations

Industry:

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

Press Release Body: 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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Web Site: http://

Contact Details: Contact:
Tammie Dodson
ADTRAN, Inc.
256.963.6739
press@adtran.com