Turin Networks Announces New Ethernet Over Copper Capabilities on the Company's Widely Deployed Traverse® Platform

PETALUMA, CA--(Marketwire - June 5, 2008) - Turin Networks, Inc., a leading global
provider of innovative Wireless
Backhaul [1], Carrier Ethernet [1] and Converged Services [1] solutions for wireline and wireless network operators, today announced new
capabilities on the company's widely deployed Traverse [1]® 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 iConnect™ 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 [1] 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 TraverseEdge™ 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 [1] or
call 707-665-4400.