HUNTSVILLE, Ala.–(BUSINESS WIRE)—-ADTRAN, Inc. (NASDAQ:ADTN) reported results for the second quarter of 2008. Sales increased to $131,183,000 compared to $123,674,000 for the second quarter of 2007. Operating income increased 20% for the quarter to $33,470,000 compared to $27,858,000 for the second quarter of 2007. Net income was $22,414,000 for the quarter compared to $19,843,000 for the second quarter of 2007. Earnings per share, assuming dilution, were $0.34 for the quarter compared to $0.28 for the second quarter of 2007.

ADTRAN Chief Executive Officer Tom Stanton stated, “For the quarter, our growth businesses – Broadband Access, Optical Access and Internetworking – again achieved record revenues, growing 39% year-over-year. Broadband Access achieved its third consecutive record level with 55% year-over-year revenue growth. Optical Access saw 36% year-over-year revenue growth for the quarter and Internetworking achieved its seventh record revenue level within the last eight quarters. Despite a slow enterprise environment and constrained spending by some carrier customers, the Company continued to perform well in executing on existing business and securing new opportunities for future growth.”

The Company also reported that the provision for income taxes in the second quarter of 2008 continued to be unusually high due to delays in federal legislation required to extend research tax credits for the 2008 year.

The Company also announced that its Board of Directors declared a cash dividend for the second quarter of 2008. The quarterly cash dividend is $0.09 per common share to be paid to holders of record at the close of business on July 31, 2008. The ex-dividend date is July 29, 2008 and the payment date is August 14, 2008.

The Company also confirmed that its second quarter conference call will be held Tuesday, July 15, 2008 at 9:30 a.m. Central Time. This conference call will be web cast live through StreetEvents.com. To listen, simply visit the Investor Relations site at http://www.adtran.com or http://streetevents.com approximately 10 minutes prior to the start of the call and click on the conference call link provided.

An online replay of the conference call will be available for seven days at http://streetevents.com. In addition, an online replay of the conference call, as well as the text of the Company’s earnings release, will be available on the Investor Relations site at http://www.adtran.com for at least 12 months following the call.

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.