WiMAX Forum(R) Second Public Mobile PlugFest Showcases Interoperability Among Mobile WiMAX Products.

PORTLAND, Ore. -- Please replace the release with the following corrected version due to multiple revisions.

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WIMAX FORUM([R]) SECOND PUBLIC MOBILE PLUGFEST SHOWCASES INTEROPERABILITY AMONG MOBILE WIMAX PRODUCTS

The WiMAX Forum has brought 35 companies from the Mobile WiMAX(TM) equipment and test equipment communities together for the second public mobile WiMAX Forum PlugFest, an interoperability showcase hosted by AT4 wireless Labs in Malaga, Spain. The PlugFest kicked off on Sunday, February 11, 2007 and concludes on Saturday, February 17.

Attracting the largest number of member participants to date, WiMAX(TM) system and chipset supplier companies included in the WiMAX Forum-sponsored event were Accton Technology Corporation, Adaptix, Airspan Networks, Alcatel-Lucent, Alvarion, Aperto Networks, Beceem, GCT Semiconductor, Inc., Huawei Technologies, Intel Corporation, LG Electronics, Motorola, Navini, Nokia, PicoChip, POSDATA, Redline Communications, Redpine Signals, Runcom Technologies Ltd., Samsung, SEQUANS Communications, SOMA Networks, Telsima, Wavesat Wireless Inc., and ZTE Corporation. In addition to these suppliers, ten test equipment vendors supported the event, including Aeroflex, AT4 wireless, Agilent, Anritsu Limited, Azimuth Systems, Anite Telecoms Ltd., Innowireless, Sanjole, Rohde & Schwarz, and Tektronix. (To view member news releases, please go to http://www.wimaxforum.org/news/membernews)

"WiMAX Forum members continue to deliver on our vision to create the next-generation of mobile broadband Internet anytime and anywhere," said Ron Resnick, president and chairman of the WiMAX Forum. "This second mobile PlugFest signifies the unwavering commitment by the WiMAX ecosystem to deliver quality products that will redefine the end-user experience and provides affordable, content-rich services. The fact we have 35 companies participating in this week's PlugFest underscores the significant interest and strong momentum leading up to mobile WiMAX Forum Certification in mid 2007."

The WiMAX Forum PlugFest provides mobile WiMAX equipment suppliers an open environment in which to test compatibility and interoperability of equipment in preparation for certification. Interoperability is the foundation of standardization and the core tenet of the WiMAX Forum's efforts. Certification of Wave 1 mobile WiMAX products is scheduled to begin in mid 2007, with market availability of WiMAX Forum Certified mobile products beginning in late 2007. In Wave 1 of mobile WiMAX certification, the initial systems that will achieve WiMAX Forum Certification will be based on the 2.3GHz profile.

About the WiMAX Forum

The WiMAX Forum is an industry-led, non-profit corporation formed to help promote and certify the compatibility and interoperability of broadband wireless products using the IEEE 802.16 and ETSI HiperMAN wireless MAN specifications. The forum's goal is to accelerate the introduction of these devices into the marketplace. WiMAX Forum Certified products will be fully interoperable and support Metropolitan Broadband Fixed, Portable and Mobile Applications. For more information about the WiMAX Forum and its activities, please visit www.wimaxforum.org.

"WiMAX Forum" is a registered trademark of the WiMAX Forum. "WiMAX," the WiMAX Forum logo, "WiMAX Forum Certified," and the WiMAX Forum Certified logo are trademarks of the WiMAX Forum. All other trademarks are the properties of their respective owners.

About AT4 wireless

AT4 wireless is an innovative company, headquartered at the Andalusian Technological Park, in Malaga, Spain. AT4 wireless offers testing services, test systems and engineering services and it works with leading organizations that develop mobile/wireless technologies as: WiMAX, GSM, GPRS, EDGE, UMTS, HSDPA, Bluetooth, RFID, NFC, UWB, etc. AT4 wireless, formerly known as CETECOM Spain, was founded in 1991 and has today 260 employees, 80% of them engineers. AT4 wireless is the WiMAX Forum Lead Laboratory and offers protocol & RF conformance test systems for Mobile WiMAX. AT4 wireless has supported the WiMAX Forum in the organization, technical coordination and analysis of the obtained results for all the WiMAX PlugFests that have taken place to date.

AT4 wireless consists of three divisions: AT4 Systems, AT4 Labs and AT4 Engineering and Solutions. AT4 Systems focuses on the development of conformance, interoperability and R&D testing systems, within the telecommunications market. AT4 Labs gives global services of certification, wireless and mobile testing and calibration to the industry for the fulfilment of the quality and safety requirements demanded by the global market. AT4 Engineering and Solutions offers services of engineering and development of software and hardware applications in the area of communications.