AT&T Selected by Vitro for $2.5 Million Networking Contract

San Antonio, Texas, June 5, 2006

MONTERREY, MEXICO — AT&T Inc. (NYSE:T) announced that it was awarded a $2.5 million networking services contract from Monterrey, Mexico-based Vitro, S.A. de C.V. (NYSE: VTO, BMV: VITROA), one of the world's leading glass producers. The three-year agreement renews and expands a long-standing relationship between the two companies.

Vitro produces many of the glass items that America's consumers use every day, such as windows for homes and offices, car and truck windows and windshields, food containers and beverage bottles. The contract calls for AT&T to provide an Internet Protocol Virtual Private Network (IP VPN) solution using Multiprotocol Label Switching (MPLS) to 64 of Vitro's regional offices and retail locations throughout the United States. AT&T will also provide DSL Internet service to 68 of Vitro's other U.S. locations.

"AT&T plays an important role in helping Vitro to continuously strengthen our technology, while being mindful of our concern for budget and cost of ownership," said Luis Molina, Vitro's IT Operations officer. "AT&T's network solution ensures that our personnel have access to the data they need to operate efficiently, which helps improve our speed to market, quality and customer service."

By efficiently and cost-effectively linking Vitro's offices, the AT&T solution will increase network access speeds, improving Vitro's ability to share mission-critical information and manage inventory across the enterprise. The solution will also provide augmented security and network redundancy, creating a secure environment for data transactions across the network.

The contract also includes managed network services, domestic and international, long distance and toll-free services.

About Vitro
Vitro, S.A. de C.V. (NYSE: VTO; BMV: VITROA), through its subsidiary companies, is one of the world's leading glass producers. Vitro is a major participant in two principal businesses: flat glass and glass containers. Its subsidiaries serve multiple product markets, including construction and automotive glass; food and beverage, wine, liquor, cosmetics and pharmaceutical glass containers. Vitro also produces raw materials and equipment and capital goods for industrial use, which are vertically integrated in the Glass Containers business unit. Founded in 1909 in Monterrey, Mexico-based Vitro has joint ventures with major world-class partners and industry leaders that provide its subsidiaries with access to international markets, distribution channels and state-of-the-art technology. Vitro's subsidiaries have facilities and distribution centers in eight countries, located in North, Central and South America, and Europe, and export to more than 70 countries worldwide. For further information, please visit our website at:

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 more than 55.8 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at

© 2006 AT&T Knowledge Ventures. All rights reserved. Subsidiaries and affiliates of AT&T Inc. provide products and services under the AT&T brand.