Exhibitors at Unified Communications Expo 2011

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 U.S. and around the world. With a powerful array of network resources AT&T is a leading provider of wireless, Wi-Fi, high speed Internet, voice and cloud-based services. A leader in mobile broadband and emerging 4G capabilities, AT&T also offers the best wireless coverage worldwide of any U.S. carrier, offering the most wireless phones that work in the most countries. The AT&T Global IP backbone handles over 27.4 petabytes of data on an average business day, and supports a suite of IP-based business communications services available in countries representing 99% of the world’s economy. AT&T offers a rich portfolio of solutions to help ensure uninterrupted access and improved performance of critical business data and applications. In 2011 AT&T announced plans to invest approximately $1 billion to scale its delivery of applications, mobility and cloud services and to continue extending its network globally, including EMEA. In Europe AT&T has a workforce of approximately 5000 in 31 countries serving most of the companies on the UK FTSE 100 exchange, the German DAX exchange and the Paris CAC 40.