Corrigent's CM-100 Packet Transport Solution Receives Metro Ethernet Forum Certification; Validates Compliance of CM100 Product Family with MEF's Ethernet Services Definition.

SAN JOSE, Calif. -- Corrigent Systems, a leading provider of Packet Transport for next-generation transport networks, announced today that the CM-110 and CM-106 Packet Transport Systems have been certified by the Metro Ethernet Forum as compliant with the MEF Carrier Ethernet Services, Test Specification MEF9. The MEF is an international forum focused on promulgating specifications to accelerate the worldwide adoption of Ethernet Services.

Ethernet services are one of the fastest growing sectors in the telecommunications services industry. According to Infonetics Research, metro Ethernet equipment sales is expected to grow from $4.9 billion in 2005 to $15.5 billion by 2009. The MEF certification is facilitating the introduction of new Ethernet equipment to telecom carriers networks. It allows end users to have greater confidence in Ethernet services consistency across geographies and service providers' networks.

The CM-110 and CM-106 were tested in accordance with the MEF Test Plan for Ethernet Services at the UNI, which defines the requirements and corresponding test procedures that determine the readiness of a Metro Ethernet Network (MEN) to deliver various Ethernet Services, such as Ethernet Line (E-Line) and Ethernet LAN (E-LAN) services.

The CM-100 product line is a packet transport solution capable of delivering carrier-class Ethernet services over a converged packet transport infrastructure. It offers high service availability and guaranteed performance as well as advanced service and fault management capabilities. In addition to Ethernet services, the CM-100 offers TDM, Fibre Channel, and HDLC-based service transport.

About Corrigent

Corrigent Systems is a market leader in next generation metro transport systems. The CM-100 product line has been designed to enable profitable delivery of voice, video and data services over a converged packet transport infrastructure. Corrigent Systems focuses in metro transport technology that maximizes revenue and profit for service providers. Used by carriers worldwide, the CM-100 product line integrates RPR with MPLS technologies to provide an efficient universal transport solution, eliminating the need for multiple transport network elements. Corrigent's packet transport solution allows carriers to evolve their SONET/SDH-based transport networks towards a packet-aware transport network, optimized for today's service requirements. Orckit Communications (NASDAQ:ORCT) is the parent company of Corrigent Systems. For more information: http://www.corrigent.com.

Corrigent Systems and CM-100 are registered trademarks of Corrigent Systems, Inc. All other Brands and products referenced herein are the trademarks or registered trademarks of their respective holders. Certain matters discussed in this release are forward-looking statements that involve risks and uncertainties. Readers are cautioned that forward-looking statements may differ significantly from actual future events or results. Corrigent assumes no obligation to update the information in this release.