The Hanover Insurance Group Expands Its Relationship with AT&T, Adding Network Migration and Enhanced Voice Services

Worcester, Massachusetts, August 7, 2007

AT&T Inc. (NYSE:T) has announced an expanded contract with The Hanover Insurance Group Inc., a leading regional property and casualty company. Under the new contract, AT&T will provide enhanced voice services and migrate the company's core network from frame relay to an Internet Protocol (IP)-enabled solution.

The Multiprotocol Label Switching (MPLS)-based Virtual Private Network (VPN) will help streamline data transport throughout The Hanover's entire business network and will enhance performance and functionality. The upgrade will enable greater efficiencies around prioritizing network traffic and facilitating telecommunications among The Hanover's nearly 50 locations nationwide.

AT&T also will continue to deliver local, long distance and toll-free calling services through AT&T's OneNet® Service, a bundled solution tailored to meet the specific communications needs of large national companies. In addition, The Hanover will benefit from a variety of AT&T's call-management, routing and call-processing features, which are designed to minimize cost and maximize performance and flexibility of service. AT&T OneNet Service allows for the continual migration of networks and services to new technologies, all under one initial contract and commitment.

"We are pleased to extend our relationship with AT&T," said Michael C. Clifton, chief technology officer for The Hanover. "Through the partnership, we will continue to make it easier for our agent partners and their customers to do business with The Hanover and will provide them with the services that they need, 24 hours a day."

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About The Hanover
The Hanover Insurance Group, Inc. (NYSE:THG), based in Worcester, Mass., is the holding company for a group of insurers that includes The Hanover Insurance Company, also based in Worcester, Citizens Insurance Company of America, headquartered in Howell, Michigan, and their affiliates. The Hanover offers a wide range of property and casualty products and services to individuals, families and businesses through an extensive network of independent agents, and has been meeting its obligations to its agent partners and their customers for more than 150 years. Taken as a group, The Hanover ranks among the top 35 property and casualty insurers in the United States.

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. Among their offerings are the world's most advanced IP-based business communications services and the nation's leading wireless, high speed Internet access and voice services. In domestic markets, AT&T is known for the directory publishing and advertising sales leadership of its Yellow Pages and YELLOWPAGES.COM organizations, and the AT&T brand is licensed to innovators in such fields as communications equipment. As part of its three-screen integration strategy, AT&T is expanding its TV entertainment offerings. Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at www.att.com.

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