Alvarion, Airspan and Redline Set the Stage for WiMAX Certification With Industry's First WiMAX Interoperability Test.

HANOVER, Germany -- Three Leading WiMAX Companies Jump Start First Phase of Interoperability Testing

Alvarion, (NASDAQ:ALVR), Airspan Networks, Inc. (NASDAQ:AIRN), and Redline Communications today announced the initiation of the industry's first stage of private interoperability testing of IEEE 802.16-2004 systems, upon which WiMAX is predicated.

Alvarion, Airspan, and Redline initiated the first phase of Base Station and CPE testing using Alvarion's BreezeMAX(TM) platform, Airspan's AS.MAX product line, and Redline's AN-100U line of carrier-class Base Stations. The testing is designed to support the official WiMAX Forum(TM) certification process, which is scheduled to begin in July 2005.

Paul Senior, Vice President of Marketing and Product Management at Airspan Networks said: "The success of the WiMAX industry depends on speedy certification, which in turn depends on leaders cooperating on compatibility issues in advance. Airspan, Alvarion and Redline will deliver the first phase of compatibility and continue working towards full completion through the WiMAX certification lab, Cetecom, in Spain."

Rudy Leser, Vice President of Marketing at Alvarion, said: "This is a key milestone for the whole Broadband Access industry and for the evolution to mass deployment of WiMAX networks. As we always have been the pioneers and innovators, this initiative of interoperability testing is a natural step in our commitment to the market to deliver state-of-the-art WiMAX products and enable widespread adoption of standards-based equipment. We welcome this vendor cooperative effort."

The focus of private interoperability testing is compatibility at the PHY layer, which supports the smooth transmission of data packets between the Base Station and multiple CPEs on the same channel. Interoperability, the foundation of standardization, will provide network operators with multi-vendor choices and competitive prices, helping to accelerate mass market adoption. The next phase of testing will focus on MAC layer and be based on completing the tests with the WiMAX Certification test suite.

Keith Doucet, Vice President of Marketing at Redline Communications, said: "This test represents an important step towards realizing the WiMAX Forum's vision of delivering a compelling broadband alternative to the market. We are very committed to the WiMAX Forum and look forward to providing a standards-based interoperable product to meet the needs of the market in the near future."

All three companies are exhibiting at the CeBIT 2005 show in Hanover, Germany, March 10-16.

About Airspan Networks Inc.

Airspan Networks provides wireless voice and data systems and solutions, including Voice Over IP (VoIP), to operators around the world in both licensed and unlicensed frequency bands between 700 MHz and 6 GHz, including both PCS and 3.5GHz international bands. Airspan has a strong product roadmap that includes offerings compliant with the new WiMAX 802.16-2004 standard, and software upgradeability to 802.16e from the time the WiMAX products are introduced. Airspan is on the Board and a founder member of the WiMAX Forum. The Company has deployments with more than 300 operators in more than 95 countries. Airspan's systems are based on radio technology that delivers excellent area coverage, high security and resistance to fading. Airspan's systems can be deployed rapidly and cost effectively, providing an attractive alternative to traditional wired communications networks. Airspan also offers radio planning, network installation, integration, training and support services to facilitate the deployment and operation of its systems. Airspan is headquartered in Boca Raton, Florida with its main operations center in Uxbridge, United Kingdom.

More information on Airspan can be found at http://www.airspan.com

About Alvarion

With more than 2 million units deployed in 130 countries, Alvarion is the worldwide leader in wireless broadband, providing systems to carriers, ISPs and private network operators, and also in extending coverage of GSM and CDMA mobile networks to developing countries and other hard to serve areas.

Leading the WiMAX revolution, Alvarion has the most extensive deployments and proven product portfolio in the industry covering the full range of frequency bands with both fixed and mobile solutions. Alvarion's products enable the delivery of business and residential broadband access, corporate VPNs, toll quality telephony, mobile base station feeding, hotspot coverage extension, community interconnection, public safety communications, and mobile voice and data. Alvarion works with several global OEM providers and more than 200 local partners to support its diverse global customer base in solving their last-mile challenges.

As a wireless broadband pioneer, Alvarion has been driving and delivering innovations for more than 10 years from core technology developments to creating and promoting industry standards. Leveraging its key roles in the IEEE and HiperMAN standards committees and experience in deploying OFDM-based systems, the Company's prominent work in the WiMAX Forum(TM) is focused on increasing the widespread adoption of standards-based products in the wireless broadband market and leading the entire industry to mobile WiMAX solutions.

For more information, visit http://www.alvarion.com

About Redline Communications

Redline Communications is a technology leader in the design and manufacture of standards-based broadband wireless access solutions. Using industry leading OFDM technologies, Redline's award-winning products provide unmatched high capacity and non-line-of-sight capabilities with proven performance, reliability and security. Ideal for a variety of access, backhaul and private network applications, Redline products meet the needs of carriers, service providers and enterprises worldwide. Redline is a principal member of the WiMAX Forum(TM), and was first in the world to market an 802.16 compliant product. Redline has over 10,000 installations in 75 countries across six continents through a global distribution network of 80+ partners.

For more information, visit http://www.redlinecommunications.com

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements, other than statements of historical facts, including statements regarding our strategy, future operations, financial position, future revenues, projected costs, prospects, plans and objectives of management, may be deemed to be forward-looking statements. The words "targets", "anticipates," "believes," "estimates," "expects," "intends," "may," "plans," "projects," "will," "would" and similar expressions or negative variations thereof are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. The companies may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. There are a number of important factors that could cause actual results or events to differ materially from the plans, intentions and expectations disclosed in the forward-looking statements. Investors and others are therefore cautioned that a variety of factors, including certain risks, may affect their business and cause actual results to differ materially from those set forth in the forward-looking statements. These risk factors include, without limitation, (i) a slowdown of expenditures by communication service providers; (ii) increased competition from alternative communication systems; (iii) the failure of existing or prospective customers to purchase products as projected; (iv) the inability to successfully implement cost reduction or containment programs; (v) a loss of any of key customers; and (vi) specific to this press release, the ability of the companies to sell their wiMAX-based products. Alvarion and Airspan are also subject to the risks and uncertainties described in their filings with the Securities and Exchange Commission. You should read those factors as being applicable to all related forward-looking statements wherever they appear in this press release. The companies do not assume any obligation to update any forward-looking statements.