Press Releases

Sorrento Networks and CALIENT Technologies Partner to Deliver
Dynamic Optical Solutions

San Diego, Calif., June 14, 2004 – Sorrento Networks (Nasdaq:FIBR), a leading supplier of intelligent optical networking solutions for metro and regional applications, and CALIENT Technologies, a leading provider of optical carrier-class switching systems and software, announced a solutions partnership today to blend their expertise, products and market momentum.

Sorrento has integrated CALIENT's DiamondWave™ PX photonic switch and GMPLS control plane into Sorrento's GigaMux GM 6400 DWDM transport system. For carriers, the "Powered by CALIENT™" switching solution enables Sorrento to offer today an optical switching and transport solution for on demand, any-to-any wavelength connectivity, automated end-to-end circuit provisioning across a multi-vendor network, and a smooth migration path for existing static networks. For multi-service cable operators, Sorrento will also be able to support video on demand, video distribution and multicasting, and other cable applications requiring reconfigurable bandwidth.

"Today's service providers have a vested interest in optimizing and expanding their networks," stated Mitch Truelock, vice president of corporate development for Sorrento Networks. " Sorrento's enhanced optical transport solution will help carriers augment existing DWDM networks and build new converged networks."

"CALIENT has always been a leader in developing GMPLS control plane standards and solutions," Mitch continued. "Partnering with CALIENT ensures easy integration and ensured interoperability with other GMPLS-enabled devices being deployed today."

" Sorrento is a great partner for CALIENT in these cable-centric opportunities," noted CALIENT chief marketing officer Ron Mackey. "More than ever, carriers and MSOs are investing to make their infrastructures world-class, future-proofed, multi-service and very intelligent. CALIENT and Sorrento are well-equipped to create complementary value on all of these fronts."

The companies have completed interoperability and solutions integration testing through Sorrento's FIBRLab and will jointly demonstrate their integrated solutions at this week's Society of Cable Telecommunications Engineers' Conference in Orlando, Fla., (booth 355) as well as at next week's Supercomm Exposition in Chicago, Ill. (booth 22316).

About Sorrento Networks
Sorrento Networks, headquartered in San Diego, makes optical networking equipment for carriers and enterprises worldwide. Sorrento's products help customers increase profitability by improving transport efficiency and expanding the addressable market of their fiber networks. Sorrento's customer base and market focus includes cable TV operators, telecom carriers, and service providers. Sorrento's products are also used for storage area networking (SAN) and enterprise private networking. Sorrento Networks' GigaMux product line is designed for high-performance, multi-protocol metro and regional WDM transport. GigaMux consists of compact, flexible, and cost-effective sub-systems based on a "pay-as-you-grow" architecture that allows carriers and enterprises to start small and expand their networks in conjunction with customer demand. Additional customer, product, and financial information about Sorrento Networks can be found at www.sorrentonet.com.

About CALIENT Technologies, Inc.
CALIENT Technologies is a leading provider of intelligent, carrier-class photonic switching systems and software that help service providers scale their networks for expanding bandwidth demands and deliver new wavelength services. CALIENT's DiamondWave switching system and GMPLS-powered networking innovations provide a seamless, 'opto-electronic-to-photonic' migration path that is non-disruptive to legacy operations, highly cost-effective, and an enabler to revenue-generating optical services. CALIENT is shipping its DiamondWave PXC systems and PX switching subsystems to production networks, labs and OEMs worldwide. The company is headquartered in San Jose, Calif. Additional engineering and manufacturing operations are located in Santa Barbara, Calif., while MEMS design and fabrication operations are located in Ithaca, N.Y. For additional information about CALIENT, visit http://www.calient.net.

CALIENT Technologies Address: 6620 Via Del Oro, San Jose, California 95119

CALIENT, the CALIENT Technologies logo, the DiamondWave logo and "Where Innovation Comes to Light" are registered trademarks of CALIENT Technologies, Inc. in the U.S. and other countries. CALIENT Technologies and DiamondWave are trademarks of CALIENT Technologies, Inc. All other marks used in this press release are the property of their respective owners.

Forward-Looking Statements

Except for historical information contained herein, the matters discussed in this release are forward-looking statements that involve risks and uncertainties. Words such as "plans," "expects," "intends," and variations of such words and similar expressions are intended to identify such forward-looking statements. The forward-looking statements in this release are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. The occurrence of actual events may differ materially due to a variety of factors, including without limitation the following: (1) Sorrento Networks' ability to fund its operations until such time that revenue and orders improve, including its ability to raise additional equity or debt financing; (2) unanticipated technical problems relating to Sorrento Networks' products; (3) Sorrento Networks' ability, or lack thereof, to make, market and sell optical networking products that meet with market approval and acceptance; (4) the greater financial, technical and other resources of Sorrento Networks' many, larger competitors in the marketplace for optical networking products; (5) changed market conditions, new business opportunities or other factors that might affect Sorrento Networks' decisions as to the best interests of its shareholders; and (6) other risks detailed from time to time in Sorrento Networks' reports filed with the U.S. Securities and Exchange Commission

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