Catena Networks Honored as 2002 Hot Startup by America's Network Magazine.

Business Editors/High-Tech Writers

REDWOOD SHORES, Calif.--(BUSINESS WIRE)--April 25, 2002

Catena Networks today announced that it has been recognized as a "hot startup" for 2002 by America's Network magazine. The article is featured in the April 15 issue.

According to America's Network editors, Catena was chosen for its integrated POTS+DSL silicon technology, which is used in the company's CNX-5 Broadband DSL System. The CNX-5 is the only solution on the market that broadband-enables Lucent SLC-5(R) digital loop carriers.

Eight companies were selected for their innovative, cost-saving approach in providing network solutions for service providers. Their products also represent brand new approaches to solving problems.

"This year's choices emphasize innovation and carrier economics," said Joan Engebretson, America's Network editor-in-chief. "These companies demonstrate that it's never a bad time for a good idea, as many of their products and technologies offer appealing opportunities for service providers to offer untried services," she added.

Suzanne Sanders, managing editor of America's Network, wrote, "the underlying key to Catena's success seems to be its target market, the RBOCs." To date, six U.S. carriers, including one major RBOC, already are deploying Catena's CNX-5 Broadband DSL System, and two U.S. carriers have begun lab evaluations of Catena's CN1000 Broadband Loop Carrier.

"We're thrilled to be honored by the editors at America's Network," said Jim Hjartarson, president and CEO of Catena Networks. "It further establishes that our underlying technology innovations and resulting cost savings are recognized as key benefits in moving DSL to a profitable, volume business."

Catena Networks, Inc. builds innovative broadband access solutions that are designed to enable facilities-based telecommunications carriers to achieve mass-market deployment of plain old telephone service (POTS), and broadband digital subscriber line service (DSL), on a single access line, and to facilitate access network convergence. Headquartered in Redwood Shores, Calif., the company operates world-class research and development facilities in Ottawa, Ontario, Canada and has more than 300 employees across North America. Founded in 1998, Catena is a privately held company that has secured U.S. $192 million in venture financing. For more information, please access www.catena.com.

Published 18 times annually, America's Network magazine provides independent, in-depth coverage for telecom executives focused on using infrastructure, applications and services to increase competitive advantage and profits. Its controlled circulation of 62,787 reaches the complete range of network service providers. America's Network also offers two supplements: Telesoftware and Wireless America. For more information, visit www.americasnetwork.com.

Note to Editors: Catena, Catena Networks, and the Catena Networks logo are trademarks of Catena Networks, Inc. All other trademarks or service marks mentioned in this document are the property of their respective owners.