QT-50 Service Assurance VoIP Solution Recognized for Outstanding Innovation MILPITAS, Calif., Jan. 23 /PRNewswire-FirstCall/ -- JDSU announced today that Technology Marketing Corporation (TMC(R))'s INTERNET TELEPHONY magazine (http://www.itmag.com/ ) has named the QT-50 Service Assurance Software Agent for Voice over Internet Protocol (VoIP) as a recipient of a 2006 Product of the Year Award. INTERNET TELEPHONY has been the VoIP Authority since 1998(TM). The QT-50 ensures high quality of service (QoS) for providers supporting the large-scale transition of their business customers to VoIP. Part of JDSU's NetComplete Service Assurance VoIP portfolio, the QT-50 equips providers with the critical ability to proactively monitor and troubleshoot issues and evaluate metrics that can affect voice quality -- such as mean opinion score (MOS), R-factor, jitter, packet loss, and packet statistics -- and by simulating the IP call experience as if at the customer premise. "JDSU is proud to be awarded the product of the year distinction by INTERNET TELEPHONY," said John Govert, general manager of the Service Assurance Solutions division of JDSU's Test and Measurement Group. "We are honored to be acknowledged for the QT-50's exceptional ability to support reliable, efficient and quality business VoIP, a priority for service providers today." The QT-50 is part of JDSU's broad portfolio of service assurance solutions and test instruments that have positioned JDSU as a leader in supporting the cost-effective deployment of VoIP for service providers worldwide. "INTERNET TELEPHONY is proud to bestow JDSU with a 2006 Product of the Year Award. Each year INTERNET TELEPHONY magazine recognizes companies that have demonstrated excellence in technological advancement and application refinements," said Rich Tehrani, TMC President and Editor-in-Chief of INTERNET TELEPHONY magazine. "JDSU has proven they are committed to quality and excellence while addressing real needs in the marketplace. We're proud to honor their hard work and accomplishments and look forward to more innovative solutions from them in the future." A full list of Product of the Year winners will be published in the February, 2007 issue of INTERNET TELEPHONY magazine. (http://www.itmag.com/ ) For more information about TMC and INTERNET TELEPHONY magazine, please visit http://www.tmcnet.com/ . About JDSU JDSU (Nasdaq: JDSU; TSX: JDU) is committed to enabling broadband & optical innovation in the communications, commercial and consumer markets. JDSU is a leading provider of communications test and measurement solutions and optical products for telecommunications service providers, cable operators, and network equipment manufacturers. Furthermore, JDSU is a leading provider of innovative optical solutions for medical/environmental instrumentation, semiconductor processing, display, brand authentication, aerospace, defense and decorative applications. More information is available at http://www.jdsu.com/ . About INTERNET TELEPHONY(R) magazine Since the first issue in February of 1998, INTERNET TELEPHONY is the only magazine that focuses on providing information in IP communications technologies. INTERNET TELEPHONY magazine provides readers with the best information necessary to learn about and purchase the equipment, software, and services. INTERNET TELEPHONY offers rich content from solutions-focused editorial content to reviews on products and services from TMC Labs and Miercom. The only BPA-audited publication that's 100% dedicated to providing the highest quality content for the IP communications market, INTERNET TELEPHONY has 55,000 dedicated readers. About TMC Technology Marketing Corporation (TMC) publishes four print publications: Customer Interaction Solutions, INTERNET TELEPHONY, SIP Magazine and IMS Magazine. TMCnet, TMC's Web site, is the leading source of news and articles for the communications and technology industries. Ranked in the top 2,600 sites in the world by alexa.com*, TMCnet serves more than one million unique visitors each month. TMC is also the first publisher to test new products in its own on-site laboratories, TMC Labs. In addition, TMC produces INTERNET TELEPHONY Conference & EXPO, Communications Developer Conference, VoIP Demo, IMS Expo and Call Center 2.0 Conference. TMCnet.com publishes more than 15 topical online newsletters. For more information about TMC, visit http://www.tmcnet.com/ . (*alexa.com is an amazon.com company that ranks Web sites by their traffic levels. Neither alexa.com nor amazon.com is affiliated with TMCnet.) Investors: Jacquie Ross, Investor Relations, 408-546-4445, or . http://www.newscom.com/cgi-bin/prnh/20050913/SFTU125LOGO http://photoarchive.ap.org/ DATASOURCE: JDSU CONTACT: Bernie Tylor of JDSU, +1-240-404-1913, or ; or Jan Pierret of TMC, +1-203-852-6800, ext. 228, or Web site: http://www.tmcnet.com/ Web site: http://www.jdsu.com/

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