TELCHEMY AWARDED KEY PATENT FOR VOICE OVER IP CALL QUALITY MEASUREMENT

VQmon® Software Is Industry’s Technology Of Choice To Analyze and Diagnose Voice Quality and Performance for IP Telephony

SUWANEE, Georgia – May 28, 2004 -- Telchemy® Incorporated, the global leader in VoIP performance management technology today announced that the United States Patent and Trademark Office has granted the company U.S. Patent 6,741,569 for it’s award-winning VQmon® call quality monitoring and analysis software. Titled “Quality of Service Monitor For Multimedia Communication System,” the patent covers several major areas of competitive differentiation for Telchemy’s VQmon family of product offerings and further solidifies the company’s leadership position in real-time multimedia fault and performance management.

The VQmon technology covered by Telchemy’s patent enables fast, accurate, real-time analysis of VoIP calls, generating call quality metrics, including listening and conversational quality MOS scores and R Factors, and detailed diagnostic information on the severity and distribution of transient network problems such as packet loss, discards and jitter. VQmon is the first call quality monitoring software to support Internet Engineering Task Force (IETF) RFC 3611 (RTCP XR) and the new QoS reporting protocols for International Telecommunication Union’s H.323, H.248, and G.799.1 standards. Telchemy has other patents pending that are key for call quality and real-time multimedia performance management.

“The award of this patent reinforces Telchemy’s position as the leader in IP-based voice and video performance management,” said Alan Clark, President and CEO of Telchemy. “VQmon’s sophisticated distributed monitoring approach gives network managers and service providers complete visibility of service quality at the customer interface (desktop or subscriber premise) and the ability to quickly locate and diagnose problems, using standards-based scalable technology in IP phones and gateways, and strategically located probes and analyzers.”

About Telchemy Incorporated

Telchemy Incorporated is the global leader in VoIP Performance Management with its VQmon family of call quality monitoring and analysis software. Telchemy is the world's first company to provide voice quality management technology that consider the effects of time-varying network impairments and the perceptual effects of time-varying call quality. Founded in 1999, the company has products deployed and in use world-wide and markets its technology through leading networking, test and management product companies.