AT&T Signs Telecommunications Agreement with the McGraw-Hill Companies

New Contract Extends the Companies' 10-Year Relationship

New York, New York, September 13, 2006

AT&T Inc. (NYSE: T) today announced that AT&T will provide and manage telecommunications and networking services for The McGraw-Hill Companies (NYSE: MHP), extending a 10-year relationship. The agreement is designed to improve collaboration and to increase operating efficiencies across The McGraw-Hill Companies' approximately 150 North American locations, supporting approximately 6,000 remote users. Specific terms of the contract were not disclosed.

AT&T's enhanced virtual private network will streamline The McGraw-Hill Companies' voice and data operations and multimedia applications. The network leverages AT&T Multiprotocol Label Switching (MPLS) technology that prioritizes network traffic to ensure quality voice calls, uninterrupted communications and business continuity. The AT&T network is also flexible enough to allow for The McGraw-Hill Companies' continued growth and increasing Internet requirements.

"The McGraw-Hill Companies' global resource-management initiative is key to improving the performance and efficiency of our businesses," said Bruce Marcus, executive vice president and chief information officer of The McGraw-Hill Companies. "Through our agreement with AT&T, we are leveraging our telecommunications network to increase the system's capacity and functionality at a reduced cost."

Other services that AT&T is providing include:

  • Ultravailable Services – which are designed to support McGraw-Hill's mission-critical applications. AT&T Ultravailable is a comprehensive, network-managed service that provides fail-safe continuity and recovery capabilities through the use of a private fiber-optic network. The service includes proactive monitoring and performance management.
  • AT&T OneNet – a uniquely flexible communications arrangement that allows for easy migration to any networking strategies that customers adopt as their business grows and circumstances change. OneNet supports The McGraw-Hill Companies' call centers located in North America and employee calling cards. The calling cards facilitate long distance and international calling when employees are traveling.
  • AT&T Professional Services – a dedicated team of AT&T professionals providing daily on-site technical support to The McGraw-Hill Companies.

"We are pleased to strengthen our long-standing relationship with The McGraw-Hill Companies, and we are committed to meeting McGraw-Hill's evolving telecommunications needs," said Ronald Spears, presiden-AT&T Business Sales. "By migrating to AT&T's leading, state-of-the-art MPLS platform, The McGraw-Hill Companies is benefiting from increased bandwidth, improved network functionality and significant cost-savings."

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About AT&T
AT&T Inc. is one of the world's largest telecommunications holding companies and is the largest in the United States. Operating globally under the AT&T brand, AT&T companies are recognized as the leading worldwide providers of IP-based communications services to business and as leading U.S. providers of high speed DSL Internet, local and long distance voice, and directory publishing and advertising services. AT&T Inc. holds a 60 percent ownership interest in Cingular Wireless, which is the No. 1 U.S. wireless services provider with 57.3 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at www.att.com.

About The McGraw-Hill Companies
Founded in 1888, The McGraw-Hill Companies is a leading global information services provider meeting worldwide needs in the financial services, education and business information markets through leading brands such as Standard & Poor's, McGraw-Hill Education, BusinessWeek and J.D. Power and Associates. The Corporation has more than 290 offices in 38 countries. Sales in 2005 were $6.0 billion. Additional information is available at
www.mcgraw-hill.com.