Brix Is The Latest Organization To Become Part Of Ditech's EXi Everywhere Partner Program LAS VEGAS, March 31 /PRNewswire-FirstCall/ -- Ditech Networks (NASDAQ: DITC), a leading provider of voice quality solutions to the world's communications industry, today announced, at CTIA Wireless 2008, that Brix Networks, a global provider of open and extensible converged service assurance solutions, will integrate Ditech's voice quality measurement technology into its products that manage and monitor the quality of VoIP networks. Brix is the latest organization to become part of Ditech's EXi Everywhere Partner Program, which makes Ditech's voice quality measurement technology available to the communications industry. Brix will integrate Ditech's Experience Intelligence (EXi) technology into its BrixCall advanced call signaling analysis and media correlation application. Brix products gather intelligence from network elements and endpoint devices to create a comprehensive view of performance and quality for revenue-generating services. The addition of EXi enables Brix to extend these capabilities to provide a view of how the subscriber call experience is impacted by a variety of voice quality impairments, such as background noise, echo, and mismatched speech levels. Separately, Brix also announced today that it will integrate EXi technology into the company's BrixCall application. "Brix Networks is aggressively leading the effort to promulgate an open, standards-based approach to service assurance," said John Burnham, vice president of marketing at Brix Networks. "Making EXi and the accurate measurement of voice quality broadly available to the communications industry fits well with this goal." EXi has been used to measure real-time voice quality in both TDM and IP networks. EXi quantifies the impact of voice quality impairments caused by the places where people make calls, codec impairments, packet loss, and by the wide variety of mobile devices like phones and headsets. However, unlike many network test solutions that focus on measuring network transmission quality, EXi is fully capable of measuring and scoring the actual speech quality experienced by subscribers in real-time, on every call in a network. Carriers can use this information, along with information from other systems, to identify and address the impact of substandard voice quality on churn, customer satisfaction, subscriber additions, marketing programs and network design. EXi has been utilized in the industry as a complement to existing test and measurement solutions. Brix products will be able to capture voice quality impairments that originate from the subscriber's environment, and add that view to impairments originating in the network, to provide its customers a comprehensive picture of actual voice quality that is experienced by subscribers. Information from EXi about signal, noise, echo and packet loss can be input into the ITU G.107 E Model, which fits well with Brix's commitment to open standards. "Brix Networks has a long-standing commitment to standards and the delivery of open solutions to its customers," said Karl Brown, vice president of marketing at Ditech Networks. "As part of Ditech's EXi Everywhere Partner Program, Brix can bring to its customers an important aspect of voice quality that can help shape a service provider's understanding of their voice service." Ditech's EXi Everywhere Partner Program makes the company's EXi technology available to the communications industry. In addition to deploying EXi on its own voice quality platforms, Ditech is making multi-platform support available as part of its EXi Everywhere Partner Program, including mobile handset and headset manufacturers, communications providers, network equipment vendors, test and measurement companies, standards organizations, consulting firms and other solutions providers. About Ditech Networks Ditech Networks is shaping the future of voice quality through continuous innovation and leadership for the world's communications companies. Ditech's voice quality solutions are deployed in wireless and wireline networks to optimize the call experience. By delivering consistent, dependable voice quality, Ditech's products help global communications companies meet the multiple challenges of service differentiation, network expansion and call capacity. Ditech's customers include Verizon, Sprint/Nextel, Orascom Telecom, AT&T, China Unicom, Global Crossing and West Corporation. Ditech Networks is headquartered in Mountain View, California. For more information, visit http://www.ditechnetworks.com/. About Brix Networks Brix Networks is a global provider of open and extensible converged service assurance solutions that allow the world's largest service providers and enterprises to offer reliable and high-quality experiences in voice, video, data, and mobile services to their customers, partners, and employees. The Chelmsford, Mass., U.S.A.-based company brings a proven heritage of IP expertise unique to the service assurance marketplace, and collaborates closely with its customers and partners to assure the delivery of any IP-based service, over any network, to any endpoint. For more information, visit http://www.brixnet.com/. Forward Looking Statement This press release contains forward-looking statements regarding Ditech Networks' expectations of the benefits the global communications industry will receive using Ditech's EXi and VQA solutions, and in being a part of Ditech's EXi Everywhere Partner Program. Actual results could differ materially as a result of unanticipated factors and events, including the risk that Ditech Networks' EXi and VQA solutions may exhibit unforeseen technical problems that will preclude those benefits from being utilized, as well as those detailed in the "Future Growth and Operating Results Subject to Risk" in Part I, Item 2 of Ditech Networks' Quarterly Report on Form 10-Q for the quarter ended Jan. 31, 2008 (filed March 11, 2008, with the Securities and Exchange Commission). Ditech Networks, Experience Intelligence and Voice Quality Assurance are trademarks or registered trademarks of Ditech Networks, Inc. All other trademarks are the property of their respective owners. DATASOURCE: Ditech Networks CONTACT: Press, Rob Adler, +1-415-984-1970 ext. 104, or Investors, Bill Tamblyn, +1-650-623-1309, both of Ditech Networks Web site: http://www.ditechnetworks.com/ http://www.brixnet.com/

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