Enables Service Providers to Deliver MEF-compliant On-net and Off-net Ethernet Services Using a Single Multiservice Transport Platform

Petaluma, CA, June 5, 2008 – Turin Networks, Inc., a leading global provider of innovative Wireless Backhaul, Carrier Ethernet and Converged Services solutions for wireline and wireless network operators, today announced new capabilities on the company's widely-deployed Traverse® Multiservice Transport Switch that enable the product to address the large and rapidly growing market for delivering IP and Ethernet services over copper PDH (Plesiochronous Digital Hierarchy - DS1, DS3, E1 and E3) access networks. With this new capability on the Traverse platform, service providers of all types can now deliver MEF-compliant Ethernet services for On-net (Ethernet over Fiber) and Off-net (Ethernet over Copper) business customer locations using a single product, resulting in significant total cost of ownership (TCO) savings.

"The Traverse platform is deployed by hundreds of carriers today for Carrier Ethernet aggregation and transport over fiber," said Henry Wasik, president and CEO of Turin Networks. "Extending the Traverse platform's functionality to include new Ethernet over copper PDH capabilities enables network operators to reach more customers with new, ubiquitous IP and Ethernet services, more quickly, while providing significant savings in both CAPEX and OPEX."

The Traverse EoPDH (Ethernet over PDH) solution is a key component of Turin's iConnectT for Carrier Ethernet solution that is ideally suited for applications such as delivery of point-to-point E-Line and multipoint E-LAN Ethernet services to business customers, and cell site traffic backhaul and bandwidth optimization. Field trials of the Traverse EoPDH solution are planned with multiple wireline and wireless backhaul carriers.

The Traverse EoPDH solution consists of a new service interface module for the Traverse Multiservice Transport Switch that provides high-capacity aggregation and termination of EoPDH DS1, DS3, E1 and E3 circuits, with the ability to connect to thousands of business customer locations or cell site base stations in a single, compact chassis. The Traverse EoPDH module integrates fully featured Ethernet switching capabilities with the ability to granularly manage traffic in 1Mbps increments. High availability options are also supported, which are essential for enabling service providers to offer stringent SLAs for their business customers, and to provide the critical redundancy required for cell site backhaul applications.

Based on the existing ITU-T G.8040 standard, the Traverse EoPDH module offers a high degree of interoperability and carrier-grade performance. Interoperability testing has been completed with multiple industry-leading EoPDH NID (Network Interface Device) manufacturers to further ensure seamless interoperability in customer environments, details of which will be released in a future announcement.

About Turin's iConnect for Carrier Ethernet Solution
Turin's iConnect for Carrier Ethernet solution enables service providers to migrate to a packet-optimized network infrastructure that supports the delivery of the complete range of MEF-compliant Carrier Ethernet services over copper and fiber access network facilities. iConnect for Carrier Ethernet incorporates Turin's flagship Traverse product family for service aggregation and transport in central offices, service hubs and other high capacity sites, as well as the TraverseEdgeT product family for metro access applications.

About Turin Networks
Turin Networks, Inc. is a leading global provider of Carrier Ethernet solutions for wireline and wireless network operators. Turin's iConnect solutions address the real-world challenges for network operators providing Wireless Backhaul, Carrier Ethernet and Converged Services. These solutions have been deployed by more than 600 customers worldwide, including the top five wireless network operators in the U.S., as well as 11 of the top 17 broadband Internet providers, to increase network efficiency and capacity, and facilitate the migration to packet optimized networks. Turin is headquartered in Petaluma, California with R&D facilities in Boulder, Dallas, Boston, and Shanghai, and sales offices throughout the world. For more information, visit www.turinnetworks.com or call 707-665-4400.