AT&T Announces New Contract with Marshall, Dennehey, Warner, Coleman & Goggin

Prominent East Coast Law Firm Taps AT&T to Deliver Advanced Network Services

Philadelphia, Pennsylvania, May 24, 2006

AT&T Inc. (NYSE: T) today announced a new contract to provide upgraded network services to Marshall, Dennehey, Warner, Coleman & Goggin (MDWC&G), a private law corporation with headquarters in Philadelphia and regional offices in New Jersey, Pennsylvania, Delaware, Ohio and Florida.

Under the terms of the three-year contract, AT&T will implement a Multiprotocol Label Switching (MPLS) private network linking the firm's 17 offices. The MPLS network serves as a backbone technology, delivering a private IP-based network, prioritizing network traffic and enabling easier use of various communications services, such as videoconferencing and audioconferencing.

AT&T's MPLS network includes more than 1,500 nodes with service availability in more than 127 countries. To streamline the convergence of the firm's data and voice services, AT&T will also deploy two Managed Internet Service (MIS) hubs. These hubs will enable easier, cost-efficient network management.

This solution further provides increased network reliability and security, complementing AT&T's customer-focused convergence strategy and enabling MDWC&G to seamlessly integrate future applications and communications services.

Commenting on this new contract, Thomas Bond, director of client relations and development at MDWC&G, stated, "In order for our firm to remain the firm of choice for many large national and international corporations and insurance carriers, we must offer state-of-the-art technologies and the convenience and efficiencies they provide. We are confident that this new contract with AT&T will play an important role in our continuing efforts to stay ahead of the curve in the area of technology."

About Marshall, Dennehey, Warner, Coleman & Goggin
Founded in 1961, Marshall, Dennehey, Warner, Coleman & Goggin is a professional corporation delivering defense litigation and counseling services to major insurance companies and corporations in Pennsylvania, New Jersey, Delaware, Ohio and Florida. Headquartered in Philadelphia, the firm is among the largest and most diverse in the Mid-Atlantic region and Florida, with nearly 400 lawyers providing experienced counsel in over two dozen practice areas. For more information, visit www.marshalldennehey.com.

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 55.8 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at www.att.com.

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