AT&T and Cooper Power Systems to Offer Wireless Smart Grid Sensors

AT&T Extends M2M Communications Offerings with Latest Smart Grid Technology

Dallas, Texas, Pewaukee, Wisconsin, June 24, 2009

AT&T* announced today it has entered into an agreement with Cooper Power Systems, a division of Cooper Industries, Ltd. (NYSE: CBE), to jointly market and sell to utility companies smart grid sensor devices that are certified on AT&T's wireless data network. Utilities can now receive real-time system performance data to efficiently operate their electric grids, reduce the need for on-site inspections, and identify and solve problems that could cause outages or increase system energy losses.

Today's announcement is the latest expansion of AT&T's efforts with smart grid technology in the M2M (machine to machine) space to use wireless technology to streamline business processes and provide real-time monitoring of energy assets. AT&T will co-sell two products with Cooper Power Systems under this agreement: OutageAdvisor^TM and VARAdvisor^TM.

"AT&T continues to focus its efforts in building out a robust set of smart grid capabilities for the global utility industry. By offering Cooper Power Systems' smart grid sensors, we can now provide businesses the ability to monitor their distribution network in real-time," said Chris Hill, vice president, mobility product management, AT&T Business Solutions. "AT&T's suite of M2M pricing plans designed specifically for the advanced meter infrastructure (AMI) market, nationwide coverage, and dedicated M2M platform makes these wireless grid monitoring solutions an economical, secure, and rapidly deployable choice for utilities."

AT&T will offer Cooper Power System's OutageAdvisor solution, which provides utilities with a reliable means to locate and isolate problems on electricity delivery lines such as faults, and communicate a permanent fault event within the system. By transmitting the information in real-time over the AT&T wireless network, the solution reduces the costly and time consuming fault-chasing methods that stress system components exposed to fault currents, as well as reduces the likelihood of an outage.

AT&T will also offer Cooper Power Systems VARAdvisor, a low cost sensor alternative to manual inspection of equipment that controls the voltage supplied to consumers, which helps to reduce costly and time consuming on-site inspections. For utility companies, the VARAdvisor helps to reduce operation and maintenance expense by monitoring capacitor bank fuse failures and reporting fuse failures over the AT&T wireless network. Early detection of failures improves online time for capacitor banks, keeping the grid operating efficiently.

"Our nation's utilities are under intense pressure to provide the latest technologies to their customers in a cost effective way," stated Cooper Power Systems group president, Mike Stoessl. "This agreement brings together Cooper Power Systems and AT&T, each of which is committed to leading the advancement of smart grid technology. Working together we will be able to help utilities streamline the way in which they gather the critical information they need to serve their customers."

Over the last decade, AT&T has invested significant resources in implementing security features on its global network and best practices that comply with national and international standards. AT&T has employed such practices in order to help secure network resources, data centers and customer facing network interfaces, in line with many of the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) recommendations. In addition, AT&T offers security management services and business continuity and disaster recovery services which can also help utilities comply with NERC CIP recommendations.

AT&T offers a range of strategic mobility products and services to the utility industry, including wireless solutions for field service workers, outage detection and remote monitoring. AT&T's dedicated team of industry specialists understands the business process from end to end and translates technical solutions into meaningful business value for customers.

For more information on AT&T's enterprise mobility offerings, visit http://www.business.att.com/enterprise/Portfolio/eb_mobility/ [1].

Cooper Power Systems: Commitment to Smart Grid

Cooper Power Systems has long been a provider of comprehensive reliability and productivity solutions for utility, commercial and industrial customers. The Energy Automation Solutions (EAS) group within Cooper Power Systems is a leading provider of innovative smart grid technologies and solutions that enable customers to optimize their electrical grid performance. These solutions include Advanced Metering Infrastructure (AMI), Demand Response (DR), Smart Sensors, Power Systems Engineering Software and Services, Substation Automation and Feeder Automation.

*AT&T products and services are provided or offered by subsidiaries and affiliates of AT&T Inc. under the AT&T brand and not by AT&T Inc.

About Cooper Power Systems
Cooper Power Systems, Inc., with revenues of approximately $1.4 billion, is a division of Cooper Industries, Ltd. (NYSE: CBE). Cooper Power Systems is a global manufacturer of world-class power delivery and reliability solutions for the electrical and industrial markets. Through its Energy Automations Solutions group, it is also a leading provider of software, communications and integration solutions that enable customers to increase productivity, improve system reliability, and reduce costs. For more information, please visit www.cooperpower.com or www.cooperpowereas.com [2].

About AT&T
AT&T Inc. (NYSE:T) is a premier communications holding company. Its subsidiaries and affiliates - AT&T operating companies - are the providers of AT&T services in the United States and around the world. With a powerful array of network resources that includes the nation's fastest 3G network, AT&T is a leading provider of wireless, Wi-Fi, high speed Internet and voice services. AT&T offers the best wireless coverage worldwide, offering the most wireless phones that work in the most countries. It also offers advanced TV services under the AT&T U-verse^SM and AT&T | DIRECTV^SM brands. The company's suite of IP-based business communications services is one of the most advanced in the world. In domestic markets, AT&T's Yellow Pages and YELLOWPAGES.COM organizations are known for their leadership in directory publishing and advertising sales. In 2009, AT&T again ranked No. 1 in the telecommunications industry on FORTUNE^® magazine's list of the World's Most Admired Companies.

Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at http://www.att.com [3]. This AT&T news release and other announcements are available at http://www.att.com/newsroom [4] and as part of an RSS feed at www.att.com/rss [5]. Or follow our news on Twitter at @ATTNews. Find us on Facebook at www.Facebook.com/ATT [6] to discover more about our consumer and wireless services.

© 2009 AT&T Intellectual Property. All rights reserved. 3G service not available in all areas. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners.