Calient Networks Offers Field Trials and Demonstrations During TELX's CBX Event.

The Customer Business Exchange is an Invitation Only Event for Telx Customers and Partners

NEW YORK & SAN JOSE, Calif. -- Telx, the interconnection company and Calient Networks, a leading carrier-class provider of intelligent Fiber Optic Cross-connect Systems, announced today that Calient, will offer field trials and product demonstrations of their DiamondWave[R] FiberConnect technology at Telx's Technology Showcase at 60 Hudson Street from June 1-4 plus an on-site demonstration at the CBX event on June 5, 2008.

The CBX is an invitation only industry and networking event exclusively for Telx customers and partners, who are the leading global networking and IT executives. As a sponsor of the CBX event, Calient has the opportunity to show the greater telecommunications market their technology by offering demonstrations and field trials to attendees. Sponsorship provides an opportunity to advertise in the CBX event magazine and present information about products and services.

Calient's FiberConnect is a proven solution for carrier hotels, network demarcation points, and points of presence (POPs). Initially deployed in extreme service-critical transoceanic cable landing sites, the DiamondWave has revolutionized remote monitoring, testing and diagnostic capabilities--in some cases permitting "lights out" unmanned operations at remote offices. Deployed in centers with on-site personnel, the system gives early warning of performance issues and with its automated database and monitoring capability allows precise isolation of faults, which speeds response time.

"The FiberConnect Fiber Optic Cross-connect System technology greatly improves the use and value of network test equipment at an interconnect facility such as Telx's," commented Daniel L. Scharre, CEO of Calient. "At the CBX, we will demonstrate how our optical switch enhances test equipment such as protocol analyzers, OTDRs, packet analyzers, load testers, multicast inspectors, and IP video testers. Our equipment identifies the root cause of the fiber problem, isolating it in real time, reducing operating costs and improving both service indices and return on capital of network test equipment."

"Calient's technology benefits network operators by allowing them to remotely monitor testing equipment connected directly into the FiberConnect technology. This permits remote testing, diagnostics and fault isolation," added Rose Klimovich, Vice President of Product Development for Telx. "By partnering with technology innovators like Calient, we are opening up opportunities for our interconnection customers to realize operating efficiencies from new technologies."

For more information about Calient or to schedule a demonstration or field trial, please contact [e-mail] or visit www.calient.net.

For more information about Telx and the CBX, please visit http://cbx.telx.com.

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. For more information please visit http://www.calient.net.

About Telx

Telx is a world-class leader in providing interconnectivity solutions through their carrier-neutral, network rich, colocation facilities. With over a dozen facilities in North America, Telx offers cost effective networking solutions for customers to seamlessly access diverse global networks and exchange information in a secure and reliable environment. Over 500 leading telecommunications carriers, ISP's, content providers and enterprises rely on Telx's world-class team to support their mission-critical global infrastructure needs and to create a global connectivity marketplace to dramatically expand their business growth opportunities. Telx is a privately held company headquartered in New York City with facilities in New York City, Atlanta, Chicago, Dallas, Los Angeles, San Francisco, Santa Clara, Miami, Phoenix, Charlotte, and Weehawken, NJ. For more information about Telx, visit www.telx.com.

DISCLAIMERS: 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.