New Version of Proxim Broadband Wireless Access Solutions Enables Industry-First Roaming for Mobile Applications

Release 2.0 of Tsunami MP.11 family Delivers Roaming Capabilities, Improved Density, to Provide Mobility, Ease Installation and Reduce Costs

SUNNYVALE, Calif., June 17, 2004 - Proxim Corporation, a global leader in wireless networking equipment for Wi-Fi and broadband wireless networks, today announced a significant new software release for its popular Tsunami MP.11 family of point-to-multipoint broadband wireless solutions, that enables a new class of mobile applications, delivers improved network service and helps reduce the complexity and cost of broadband wireless network installation and management.

Designed for wireless Internet Service Providers (WISPs), municipalities, public safety and transportation organizations and enterprises, Release 2.0 enhances the Tsunami radios with a unique, industry-first roaming capability, enabling a wide range of new mobile applications. With this new roaming feature, Tsunami MP.11 Subscriber Units can now be placed on moving vehicles where they can roam between similar model Tsunami Base Station Units – a critical feature for customers in the transportation and public safety sectors, among others.

“Proxim’s new MP.11 roaming feature enables wireless public safety applications, where cameras in trains, subways and other vehicles can transfer online video streams at 25 frames per second, or other information to a security surveillance center,” said Harold B. Hoffman, senior consultant for Airconnect, a German-based consultancy specializing in security and surveillance, and a senior consultant for Siemens Security Systems, who has evaluated the roaming capabilities of the new Tsunami release.

In addition to the new roaming capabilities, Release 2.0 boosts subscriber density from the previous 100, to 250 Subscriber Units, per Base Station Unit, and provides new automated features that speed installation and improve service quality. This substantial increase in density improves coverage for Wireless Internet Service Providers (WISPs) looking to generate more revenue from their existing broadband wireless infrastructure.

“The new Release 2.0 roaming capabilities are part of Proxim’s continued innovation to meet current and emerging market and customer needs,” said Lynn Lucas, vice president of product marketing for Proxim. “With the addition of this important feature, the Tsunami products can bring the benefits of high-speed, broadband wireless access to moving vehicles such as trains and trucks, enabling a new generation of applications for the public safety and transportation industries, as well as mobile applications in the enterprise.”

Release 2.0 also includes a number of features to help ease installation and management of a broadband wireless infrastructure for both enterprises and service providers and, in particular, deliver new revenue opportunities and improved profitability for WISPs. These additional features include:

• New antenna alignment tool to align Subscriber Units during installation, reducing installation time and increasing accuracy
  
• Built-in DHCP and NAPT support in the Subscriber Unit allowing better use of network operator IP address allocations and costs
  
• Dynamic data rate selection that chooses the best transmission rate for each individual 5 GHz Subscriber Unit, yielding better, more consistent service quality across a given Base Station Unit area of coverage
  
• Bandwidth control features to prevent the type of “bandwidth-hogging” that commonly occurs with peer-to-peer file sharing applications, enabling better quality of service
  
• Support for the newly available 5.8 GHz frequency band in the United Kingdom, adding even more spectrum available for network operators to deploy broadband wireless systems

“Proxim’s addition of NAT support and easy installation features for its MP.11 products are key to delivering higher revenues and lower operational costs as we expand our services,” said Andrew Johnson, systems engineer at Derwentside District Council, commonly known as DurhamNet, a United Kingdom-based ISP for schools in County Durham, that has evaluated the new Tsunami MP.11 Release 2.0.

Proxim’s Tsunami MP.11 family offers robust and affordable point-to-point connectivity that is ideal for metropolitan area networks, campus networking and last mile access. The Tsunami MP.11 operates in the 2.4 GHz or 5 GHz license-exempt spectrums. Both enable the immediate creation of wireless WANs for enterprises, municipalities, schools and service providers. The new Release 2.0 roaming capabilities represent the first in a series of mobility functions that Proxim intends to offer in future IEEE 802.16-based solutions.

Pricing and Availability
Release 2.0 of the Tsunami MP.11 family is available immediately. Existing Tsunami MP.11 customers can download the new software release from Proxim’s eService website at www.proxim.com at no additional cost. The Tsunami MP.11 complete with Release 2.0, is available from Proxim’s global reseller community, with pricing for the MP.11 Model 2411 beginning at $395 U.S. list for the Residential Subscriber Unit and $695 U.S. list for the Tsunami MP.11 Model 5054 Residential Subscriber Unit. Subscriber Units designed for business customers and Base Station Units are also available for each frequency-based model.

About Proxim
Proxim Corporation is a global leader in wireless networking equipment for Wi-Fi and broadband wireless networks. The company is providing its enterprise and service provider customers with wireless solutions for the mobile enterprise, security and surveillance, last mile access, voice and data backhaul, public hot spots, and metropolitan area networks. This press release and more information about Proxim can be found on the Web at www.proxim.com.

Safe Harbor
This press release may contain forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from Proxim’s expectations in these statements. For additional information regarding risks relating to Proxim's business, see Proxim Corporation's Form 10-K for the year ended December 31, 2003 and Form 10-Q for the quarter ended April 2, 2004, Current Reports on Form 8-K and other relevant materials filed by Proxim with the SEC. Proxim assumes no obligation and does not intend to update these forward-looking statements.