Toronto, Canada (May 25, 2007) - Primus Canada and Mipps Inc. announced today that they are now jointly conducting WiMAX IEEE 802.16e-2005 (3.5 GHz) trials in Hamilton, Ontario, using Alcatel-Lucent’s new WiMAX equipment. The WiMAX trial is free for Hamilton residents and small businesses, and is expected to continue into the mid-summer, providing participants with fixed/portable, wireless, high speed internet access almost anywhere within the city of Hamilton.

The IEEE 802.16e-2005 WiMAX standard is a more advanced successor to IEEE 802d.16-2004 (called "Static WiMAX"), offering superior performance, functionality and flexibility. Users can enjoy uninterrupted internet applications such as browsing and video streaming, as they move throughout most of the city. 

Mipps Inc. (“Mipps”) acquired 3.5 GHz licensed spectrum covering the Hamilton area as well as similar spectrum in most major cities across Canada.  Mipps is building the WiMAX network infrastructure in Hamilton and the companies will collaborate and share knowledge and expertise gained through the trial. 

“Primus Canada’s trial of the latest WiMAX technology, in partnership with Mipps, is another example of our dedication to providing Canadians with leading-edge services and features,” said Ted Chislett, President of Primus Canada. “Hamilton, being a key market for Primus, represents an ideal test-market for this initiative, which could lead to a roll-out in other centres across Canada in the coming months."

“As a wireless network operator, and given the potential for WiMAX to become a widely embraced technology in Canada, we are pleased to evaluate and explore the WiMAX IEEE 802.16e capabilities with a leading supplier such as Alcatel-Lucent, and to exploit the possibilities of new services with Primus Canada’s innovative offerings,’’ said Joe Boutros, President of Mipps.

About WIMAX
WiMAX is a broadband wireless access technology that enables connectivity through wireless networks for fixed, nomadic or mobile use in urban, suburban and rural areas. The technology offers a cost-effective broadband access alternative where DSL is unavailable for technical or economical reasons, or a last-mile alternative to unbundling for operators who are offering a combination of voice and broadband access for next generation of wireless devices.

About Primus Canada
Primus Telecommunications Canada Inc. is the largest alternative communications carrier in Canada with over 1,000,000 customers. The Company offers facilities-based voice, data, e-commerce, Web hosting, VoIP and broadband Internet services utilizing ADSL2+ technology. Primus Canada's national network consists of nationwide switches with international connectivity through its parent company's global network, ATM and IP nodes, and colocation facilities at major cities across the country. Primus Canada is also one of Canada’s largest MVNO’s (Mobile Virtual Network Operator) offering PRIMUS Wireless service. Primus Canada is a wholly-owned subsidiary of McLean, Virginia-based PRIMUS Telecommunications Group, Incorporated (OTCBB: PRTL). Primus Canada news and information are available at the Company's Web site at www.primus.ca.

About Mipps Inc. 
Mipps Inc. is a Canadian wireless operator and has acquired 3.5 GHz licensed spectrum in 40 licensed areas covering most major cities and towns across Canada potentially serving over 15 million in population. Mipps is one of the first companies in Canada to use fixed wireless technologies to conveniently and cost-effectively meet the full range of communications and e-services needs of organizations of all sizes. In addition to supplying its customers with robust and secure wireless broadband service at speeds ranging from T1 through to an unprecedented 480Mbps, Mipps provides a host of other comprehensive Internet related services. Mipps’ world class technology takes advantage of international standards and provides innovative services to end-users with the highest reliability.

About Alcatel-Lucent
Alcatel-Lucent (Euronext Paris and NYSE: ALU) provides solutions that enable service providers, enterprises and governments worldwide, to deliver voice, data and video communication services to end-users. As a leader in fixed, mobile and converged broadband networking, IP technologies, applications, and services, Alcatel-Lucent offers the end-to-end solutions that enable compelling communications services for people at home, at work and on the move. With operations in more than 130 countries, Alcatel-Lucent is a local partner with global reach. The company has the most experienced global services team in the industry, and one of the largest research, technology and innovation organizations in the telecommunications industry. Alcatel-Lucent achieved adjusted proforma revenues of Euro 18.3 billion in 2006 and is incorporated in France, with executive offices located in Paris. [All figures exclude impact of activities transferred to Thales]. For more information, visit Alcatel-Lucent on the Internet: http://www.alcatel-lucent.com.