LAFAYETTE UTILITIES SYSTEM SELECTS TROPOS AND CSG DATA NETWORKS FOR ITS WIRELESS BROADBAND NETWORK

Customer Owned and Operated Utility Set to Own and Operate Network That Will Increase Efficiencies of Mobile Utility Workers

SUNNYVALE, CA, May 9, 2007 - Tropos Networks, market leader in metro-scale wireless mesh networks, and CSG Data Networks, a leader in network design and implementation of large scale wireless deployments, today announced that their solution has been selected by the Lafayette Utilities System (LUS) for the city of Lafayette, Louisiana. The Lafayette Utilities System or LUS is deploying the system to enable mobile utility workers to operate more efficiently, reduce cost and improve customer experience for citywide services such as electric, water, wastewater, telecommunications and other wholesale services.

The city-owned and operated network will be deployed in multiple phases and will encompass the city's entire 49 square miles. Initial use will enable utility workers who are working in the field to both send and receive documents. This includes critical documents such as work orders, building schematics, city maps and Geographic Information System (GIS) models that provide layouts of power and water routing, manholes, light poles and electric meters.

"The citywide Wi-Fi mesh network is a strategic decision for our city as it will enable us to move towards our goal of further enhancing city municipal services and improving the efficiency of our mobile workers," said Terry Huval, LUS director. "We foresee adding new applications that will be supported by the metro-scale mesh network such as video surveillance of utility sites for public safety, automated meter reading to reduce errors, even communications with utility-owned vehicles to improve customer response time."

"We selected Tropos' MetroMesh solution and CSG Data Networks because of their high quality products that utilize proven technology," said Mona Simon, LUS communications engineer. "We know that together these solutions will work well with our existing fiber infrastructure and it will be cost-effective to deploy, operate and expand."

LUS will be responsible for the installation of the equipment and deployment of the network, while partnering with CSG to provide equipment and software. Once the system is operational, LUS will operate and maintain the network, as it currently does with its existing fiber ring for wholesale telecommunications services.

About Lafayette, Louisiana
Consisting of approximately 112,000 people (within the city, 203,000 in the parish), Lafayette is located in South Central Louisiana and serves as an economic center in Louisiana. The region's legendary joie de vivre and Cajun and Creole cultures are known around the globe, creating a unique environment for work and play. A recent issue of Southern Business and Development magazine has named Lafayette as a Top 10 place in the South for the "creative class" - citing Lafayette's risk-taking spirit and technological advantages.

About LUS
Lafayette Utilities System (www.lus.org) employs more than 450 people and offers its customers quality electric, water, wastewater and wholesale telecommunications services. As a customer-owned and operated utility, LUS customers, through their local elected officials, have the power to set rates and control the standard of service.

About CSG Data Networks, Inc.
CSG provides a full range of wireless networking services, from site surveys to large- scale municipal broadband solutions. Their highly qualified technical and engineering staff provide sales, system design, equipment, installation and unparalleled post-sale maintenance and support services. These services are designed to ensure customer satisfaction and provide the client with a competitive advantage by allowing them to stay ahead of the ever-changing technological world. CSG is headquartered in Central Florida. For more information, please visit www.csgdata.com, call 407-792-4757, or write to info@csgdata.com.

About Tropos Networks, Inc.
Tropos® Networks is the market leader in delivering metro-scale wireless mesh network systems. Our systems have been selected to unwire more major-league cities than all competitors combined and are installed in 30 countries. The patented Tropos MetroMeshT architecture delivers the ultimate scalability, high capacity at low cost and great user experience demanded by carriers, municipalities and network users. Our unique expertise includes high-performance mesh software development, mesh RF engineering, metro-scale network planning, deployment and optimization, and navigating the municipal approval process. Tropos Networks is headquartered in Sunnyvale, California. For more information, please visit www.tropos.com, call 408-331-6800 or write to info@tropos.com.

Tropos and PWRP are registered trademarks of Tropos Networks, Inc. Tropos Networks, MetroMesh, MetroMesh NG, AMCE, TMCX, SABRE, CMDP, MESM and Metro-Scale Mesh Networking Defined are trademarks of Tropos Networks, Inc. All other brand or product names are trademarks or registered trademarks of their respective holder(s).