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Inet's Spectra2 Supports IPv6 Addressing Format Allowing Users to Work with IPv6 and IPv4 Simultaneously

Inet's Spectra2 Supports IPv6 Addressing Format Allowing Users to Work with IPv6 and IPv4 Simultaneously

IPv6 Support Results in Initial Sale to Japanese Tier-One Carrier Growing Traction for Spectra2 in the Asian VoIP Market

Richardson, Texas, USA – May 10, 2004 – Inet Technologies, Inc. (NASDAQ: INTI), a leading global provider of communications software products that enable communications carriers to more strategically and profitably operate their businesses, today announced the availability of IPv6 support in its Spectra2™ Voice-over-Internet Protocol (VoIP) diagnostics product. IPv6 support, in conjunction with Spectra2's VoIP testing capabilities, was a key factor in Inet's winning business with a tier-one Japanese carrier.

With IPv6 support, Spectra2 users can now monitor, test and generate H.323, SIP, MGCP, Megaco and RTP traffic using the IPv6 addressing format. IPv6 is supported in all Spectra2 applications. Users now have the ability to monitor, test and generate in IPv4 and IPv6 address schemes simultaneously.

IPv6, or Internet Protocol Version 6, is the next generation of the Internet Protocol and increases the address space from 32 bits to 128 bits. The increased address space in IPv6 will enable a greater number of devices, such as telephones, computers, and personal digital assistants (PDAs), to connect to a carrier's IP network and access services such as voice, data and video.

"This new functionality benefits all of our customers entering the VoIP arena," said Lyn Cantor, Inet's vice president, diagnostics products. "Japan, China and Korea are in the vanguard of adopting technologies that utilize IPv6, so carriers and equipment manufacturers in the Asia/Pacific region have an immediate need for IPv6 support. However, IPv6 will also become important to customers in the U.S. and the rest of the world as they too begin to more widely deploy IP communications networks."

Other benefits of IPv6 include the ability to reserve groups of addresses for specific types of uses, a simplified protocol header that will speed up data transmission and a feature called "flow labeling" that will allow workstations and hosts to better accommodate special handling of applications such as videoconferencing that generate heavy interactive traffic.

About Spectra2

Spectra2 is a comprehensive, fully integrated diagnostic testing solution for VoIP developers, carriers and equipment manufacturers. Spectra2 offers the ability to verify the performance of critical elements of next-generation networks such as media gateways, media gateway controllers, gatekeepers, and proxy servers, and to confirm delivery of the highest level of signaling and media quality.

About Inet Technologies, Inc.

Founded in 1989, Inet Technologies is a global provider of communications software products that enable communications carriers to more strategically and profitably operate their businesses. Our Unified Assurance™ Solution and our Diagnostics products help our customers reduce capital and operating expenditures, improve customer acquisition and retention rates, protect and grow revenues, and more quickly and effectively develop products or services. Using our Unified Assurance Solution products, communications carriers are able to simultaneously manage their voice and data services at the network, service and customer layers to detect network and service problems in real time, enabling proactive identification of specific customers impacted by network or service issues. Our Diagnostics products assist communications carriers and equipment manufacturers in quickly and cost-effectively designing, deploying and maintaining current- and next-generation networks and network elements. Inet is headquartered in Richardson, Texas and has approximately 501 employees worldwide. Inet is an ISO 9001 registered company. For more information, visit Inet on the Web at

Inet Technologies, Unified Assurance and Spectra2 are trademarks of Inet Technologies, Inc. All other trademarks or registered trademarks belong to their respective owners.

This release contains forward-looking statements, including statements regarding the ability of our customers to achieve the anticipated benefits of our products. Such forward-looking statements involve risks and uncertainties. Among the important factors that could cause actual results to differ materially from those in the forward-looking statements are product defects and other factors detailed in Inet's filings with the Securities and Exchange Commission, including our Quarterly Report on Form 10-Q for the quarter ended March 31, 2004.

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