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AT&T Builds Companywide Network at Koji Center


Implementing Wide Area Ethernet and IP Telephony Services

San Antonio, Texas, April 24, 2006, TOKYO, — AT&T Inc. (NYSE: T) announced today that it has provided a companywide network to Koji Center Co., Ltd. in Japan. Koji Center is a supplier of comprehensive moving services, including transferring and installing home appliances, designing and installing electric and air-conditioning facilities, repairing household goods, offering home security services, and recycling services.

AT&T implemented a wide area Ethernet network for data traffic that links 15 locations, including Koji Center’s headquarters in Osaka and branch offices across Japan. A broadband VPN is used to connect seven sales offices. For voice services, AT&T also implemented IP telephony services using a broadband VPN.

Since its foundation, Koji Center has reinforced its network as its business has expanded. In order to further expand business and achieve operational efficiency in the future, Koji Center needed a new network that would address the following:

- Leveraging existing network assets effectively to substantially reduce costs of implementing a new network
- Enhancing fault tolerance by providing redundancy in the configuration of the headquarters’ network
- Enhancing security levels for communication between the headquarters and branch offices
- Reducing communications costs among all locations

AT&T addressed these issues by proposing a low-cost Ethernet network, employing a closed broadband VPN for tighter security, using IP telephony services for lower communications costs. As a result, Koji Center successfully decreased network costs by approximately 10 percent while doubling the network speed between headquarters and branch offices.

“AT&T was able to resolve our network problems from the customer standpoint,” says Akira Segawa, director of information systems at Koji Center. “We attained the objectives of reducing costs and achieving greater operational efficiency through adopting the new network.”

“AT&T has a track record of helping not only large enterprises but also medium-sized businesses,” says Norihiko Minato, president of AT&T Japan. “We are delighted that the recent network implementation helps the customer make its operations more efficient.”

About Koji Center Co., Ltd.
Established in 1967 as Suehiro Denki Shokai, Koji Center is engaged in business nationwide in a multi-faceted manner as a provider of comprehensive moving services, including transferring and installing home appliances before and after a move; designing, installing, and selling electric and air-conditioning facilities; repairing household goods; offering home security services; and recycling services. The company has an office in Shanghai, China and its headquarters is located in Osaka, Japan. The President of the company is Masao Suehiro, and the number of employees is 270.

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About the New 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 54 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at

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