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Telchemy's VQmon Selected by Shomiti Systems, a Finisar Company

Shomiti Systems- A Finisar Company, embeds Telchemy's powerful VoIP call quality monitor into its next generation Network Monitoring and Analysis Software Multi-QoS

ATLANTA (August 7, 2001) - Telchemy, Inc. announced today that VQmon/SA, a member of Telchemy's VQmonTM family of Voice over IP call quality monitoring products, has been selected by Shomiti Systems- A Finisar Company for its Multi-QoS network monitoring and analysis software. VQmon/SA will allow Shomiti to offer real-time VoIP call quality monitoring and measurement for all calls more accurately than previously possible. VQmon is the only product that measures time-varying network impairments and recency, and then models their effects on network and end-user-perceived call quality.

Voice call quality measurement and corrective action are key enablers for the growth of VoIP. VQmon technology helps providers offer the maximum number of calls using the least amount of resource for a user- or provider-specified call quality level. Enterprise users can avail themselves of major capital and network management cost reductions while service providers can benefit from increased call duration, customer retention and customer satisfaction without over-provisioning their networks.

"We are very pleased that Shomiti, a recognized leader in network and protocol analysis, has selected VQmon as its voice call quality monitoring technology," said Dr. Alan Clark, president and founder of Telchemy. "With VQmon's ability to more accurately measure network and end-user-perceived call quality than previous technologies, Shomiti can more completely assist its customers in analyzing and managing their VoIP networks. This will also help Shomiti's customers avoid costly over-provisioning to ensure agreed-to call quality service levels."

"We believe that the ability to measure QoS from the quality perspective is key to managing and provisioning a successful VoIP service," said Tim Bean, Vice President of Engineering for Shomiti- A Finisar Company. "Adding Telchemy's unique VQmon technology to our platforms powerfully augments our current rich set of capabilities, enabling our customers to discover, diagnose and correct VoIP problems quickly. This capability will help them determine where and when to add capacity and essentially improve their customer's experience," added Bean.

VQmon is a family of lightweight, computationally efficient, embedded voice quality monitors that can accurately monitor all calls made over VoIP networks in real-time. Written in C, VQmon is platform independent allowing easy integration into VoIP gateways and platforms, communications servers, IP phones, testers, analyzers, probes and other VoIP-related equipment and has negligible impact host processor or system performance.

About Shomiti

Shomiti Systems, headquartered in San Jose, California, is a technology leader in Network QoS (Quality of Service). Shomiti was recently acquired by Finisar Corporation (Nasdaq: FNSR). Based on award winning silicon accelerated and software technologies, Shomiti's fully distributed, full line rate performance analysis products for 10/100/1Gb and VoIP deliver unrivaled scalability, performance, accuracy and value to customers worldwide. To meet the needs of its customers, Shomiti has a worldwide network of OEMs, distributors and resellers. For more information, Shomiti Systems can be reached at (408) 437-3940 or on the Internet at

About Finisar

Finisar Corporation (Nasdaq: FNSR) is a innovative developer of fiber optic subsystems and network performance test systems which enable high-speed data communications over Gigabit Ethernet local area networks (LANs), Fibre Channel storage area networks (SANs), metropolitan data network applications (MANs), and CATV. The Company is focused on the application of digital fiber optics to provide a broad line of high-performance, reliable, value-added optical subsystems for networking, storage and telecommunications equipment manufacturers. The Company's headquarters are located at 1308 Moffett Park Drive, Sunnyvale, CA 94089. For more information, visit the Company's web site at

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 21E of the Securities and Exchange Act of 1934, as amended, including statements regarding Finisar Corporation's expectations, beliefs, intentions, or strategies regarding the future. All forward-looking statements included in this document are based upon information available to Finisar Corporation as of the date hereof, and Finisar Corporation assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected.