Calient Networks Responds to Global Environmental Challenge.

DiamondWave[R] Products Deliver "Green" Solutions for Service Providers Worldwide

SAN JOSE, Calif. -- Calient Networks, a leading carrier-class fiber optic cross-connect system provider, announced the availability of its latest environmentally friendly product, a RoHS (Restriction of Hazardous Substances) Directive compliant DiamondWave [R] FiberConnect. This announcement was anticipated by European carriers given Calient's increasing presence in the region and follows its successful meetings at the California Technology Showcase organized by EuroStart.

Calient has a long history of fostering environment responsibility; from reducing energy consumption to new ideas on reducing CO2 emissions. Its latest offering reduces lead and other hazardous substances below standards set by the European Union. "We strongly believe that we have a corporate responsibility to the communities we live and work in and to the world at large to establish safe, healthy, and economically sustainable products," said Kevin Welsh, CEO of Calient Networks. "We are very proud of our engineer's efforts and success in developing a RoHS compliant FiberConnect."

The DiamondWave FiberConnect is an intelligent fiber optic cross-connect system (FOCS) that revolutionizes the way service providers manage their fiber optic cables and services. The product offers any carrier deploying large amounts of new fiber - from FTTX to video and wireless backhaul to data center and metro fiber rollouts - cost saving, reduced electrical consumption, and a significant contribution to reduced greenhouse gas emissions. The FiberConnect also streamlines and centralizes network operations by enabling:

* Rapid, remote test and installation verification of fiber for new services, in 1/10th the normal time

* Certification of construction, separating fiber construction from service provisioning

* Automated fiber records management and real-time inventory

* Optical layer protection and/or restoration

* Automated network testing

* Lights-out, remote site operation

* Instant fiber reconfiguration

* Automated optical power monitoring and alarming

The telecommunications industry has established numerous initiatives to foster positive environmental positions and products; from the GeSI (Global e-Sustainability Initiative) to the ETNO (European Telecommunications Network Operators) association. Calient has been a consistent leader, offering incredibly low energy consuming product and creative solutions for reducing greenhouse emissions. "Our most recent product, the DiamondWave FiberConnect, consumes less than a quarter of a watt per fiber connection," said John Bowers, CTO and VP marketing and business development for Calient. He continued, "that is less than 150 watts for a 640 fiber termination fiber optic cross-connect system (FOCS) or less than 1 W/Tbit/s fully loaded."

According to figures compiled by the Lawrence Berkeley National Laboratory, total worldwide energy consumption of data center servers has doubled from 2000 to 2005 to 123 billion kilowatt hours (Total Telecom Magazine, May 2007). "Carriers are setting aggressive goals to reduce their electrical consumption per unit of data and Calient is helping make this a reality," said Kevin Welsh.

Potentially of even greater significance is Calient's position on reducing greenhouse emissions. The FiberConnect allows operators to provision and troubleshoot fiber network problems remotely and with its any fiber-to-any-fiber cross-connect capability can directly resolve many failures. This capability takes thousands of trucks and their crews off the road instead of merely making the truck less polluting. When a field visit is required, such as a repair of a fiber cut, Calient's FiberConnect is able to isolate the location and precisely dispatch the team reducing "windshield" time searching for the cable break.

Another non-trivial contribution the FiberConnect makes is dramatically reducing the release of cleaning chemicals into the environment. Every time a fiber cable has to be disconnected and re-connected it must be cleaned; this happens thousands of times over the deployed life of a fiber. The FiberConnect makes and remakes fiber connections with mirrors; no cleaning is required other than with initial installation.

All of these benefits in one product, the DiamondWave FiberConnect; and a world of new ideas in the pipeline. To learn more please contact us at [e-mail].

About Calient Networks

Calient Networks is a leader in fiber optic cross-connect systems (FOCS). The company addresses critical access network and central office fiber deployment challenges faced by service providers, government agencies and optical network equipment providers. Calient's cost-shattering DiamondWave[R] systems make dynamic fiber management inexpensive and reliable, lower operations expenses and enable new revenue-generating optical services at the speed of the market. Shipping DiamondWave[R] products to production networks since 2002, Calient has one of the largest installed fiber switch bases worldwide. The company provides its cost and performance benefits to the highly demanding access, backhaul, and central office fiber management markets. Calient is headquartered in San Jose, California, with additional engineering and manufacturing operations in Santa Barbara, California.

Calient, Calient Networks, the Calient Networks logo and DiamondWave are registered trademarks of Calient Networks, Inc. in the U.S. and other countries. All other marks used in this press release are the property of their respective owner.