Optelian’s LightGAIN DWDM System Achieves RUS Listing

System enables rural telephone companies deliver broadband & advanced services

Ottawa, ON/Marietta, GA - April 14, 2010 - Optelian, a trusted designer and manufacturer of
optical network systems, today announced acceptance from the Technical Standards Committee of
the U.S. Department of Agriculture Rural Utility Services (RUS) for its LightGAIN DWDM system. The
system supports up to forty channels of OC-3/12/48/192, GbE and 10 GbE traffic with optical fiber
amplifiers (OFAs), dispersion compensation and management.

USDA Rural Development provides low-interest financing to rural telephone companies for telecommunications infrastructure in smaller communities throughout the United States. In addition, the USDA administers a rigorous technical acceptance process to ensure that products will perform well in these networks before including them in their List of Acceptable Materials. Listed products are qualified to receive financing.

“Achieving RUS listing from the USDA demonstrates Optelian’s commitment to helping rural telephone companies deliver broadband and advanced services to their customers,” said John Spencer, business and technology strategist for Optelian. “Both Optelian’s LightGAIN DWDM and previously listed Hardened CWDM systems, with their low power consumption, ease-of-use, and outstanding reliability, are ideally suited for high-bandwidth transport in rural areas.”

About Optelian
Optelian, a trusted designer and manufacturer of optical transport systems, serves some of the world’s largest network operators. With more than 200 customers and over 91,000 wavelengths installed, the company is known industry-wide for its exceptional product quality, speed of delivery, superior customer support and custom-design capabilities. Since 2002, Optelian’s portfolio of optical solutions has enabled telecom, multi-service operator (MSO), utility and enterprise customers to expand their fiber capacity so they can increase revenue and cost-effectiveness. The company’s sales, marketing and service operations are located in Marietta, Georgia, with in-house development and manufacturing based in Ottawa, Ontario, Canada. For more information, visit www.optelian.com.