AT&T Delivers Prescription for Express Scripts Network Services

St. Louis, Missouri, West Palm Beach, Florida, May 8, 2007

AT&T Inc. (NYSE: T) today announced that AT&T has signed a contract with Express Scripts, one of America's leading pharmacy benefit managers, to deliver all of its network services. AT&T will deliver more than 350 million minutes of communications services annually.

The three-year agreement calls for deployment of AT&T Virtual Private Network (VPN) services, which will connect 70 Express Scripts locations in the United States. Reliable, secure networking services are essential to Express Scripts, which makes the use of retail and home delivery prescription drugs safer and more affordable for patients nationwide.

AT&T's VPN technology provides Express Scripts with a robust and flexible network service, allowing unified communications among U.S. locations. The service will deliver increased bandwidth to Express Scripts over AT&T's fully meshed, highly redundant IP network using Multiprotocol Label Switching (MPLS) architecture. This powerful and advanced way of merging different types of traffic, such as voice, video and data, over a single network is highly secure and can expand as Express Scripts' business grows. Moreover, it ensures that all critical business functions — from customer service to claims processing — can coexist on the same network.

"AT&T's networking services provide efficiencies in operations, facilitate growth and enhance the service we provide to our clients," said Charlie Moore, senior director of IT infrastructure support with Express Scripts. "These networking services are ultimately all about providing patients with the knowledge, experience and care they need to make the most out of their pharmacy benefit."

AT&T also will provide AT&T Toll-Free Advanced Features to support Express Scripts' seven U.S. Patient Care Contact Centers, which operate 24 hours a day. These centers provide a critical link between the company's patient care advocates and prescription-drug plan members. AT&T's Toll-Free Advanced Features deliver the flexibility to seamlessly route calls to the appropriate call center based on the time of day, day of the week and location of the caller.

The contract also includes managed Internet services, conferencing services and long distance voice services.

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About Express Scripts
Express Scripts, Inc. (NASDAQ: ESRX) is one of the largest pharmacy benefit management (PBM) companies in North America, providing PBM services to more than 50 million patients through facilities in 13 states and Canada. Express Scripts serves thousands of client groups, including managed-care organizations, insurance carriers, third-party administrators, employers and union-sponsored benefit plans. Express Scripts is headquartered in St. Louis, Missouri. More information can be found at

About AT&T
AT&T Inc. 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

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