EMCON Technologies Signs Multimillion Dollar Contract with AT&T for Global Voice and Data Services

AT&T's Managed Services to Connect Emission Technology Company's Global Operations

Troy, Michigan, December 19, 2007

AT&T Inc. (NYSE:T) has announced a five-year contract with EMCON Technologies, a privately held company of New York-based equity investment firm One Equity Partners. A leader in global emission technology, EMCON will connect its operations in 19 countries with AT&T's suite of managed voice and data services.

Under the terms of the agreement, AT&T will deploy managed Virtual Private Network (VPN) and security solution and connect 44 EMCON engineering centers, manufacturing plants and administrative sites around the world.

Seeking a global provider with reliable connectivity and superior customer service, EMCON chose AT&T's network technology with its Multiprotocol Label Switching (MPLS) backbone to enhance day-to-day business operations in sales, pricing and inventory. In addition, AT&T's managed Internet Protocol (IP) VPN and security solution will defend against network and Internet service interruptions.

With AT&T's advanced IP-based MPLS network, EMCON can stay better-connected through voice conferencing and Web meetings. Greatly reducing expenses while increasing opportunity for collaboration, AT&T's conferencing services provide quality and reliability. With AT&T's VPN, EMCON is capable of conducting video conferences in the future with a multimedia experience of integrated video, audio and data information on a multipoint call.

Similarly, AT&T's Web-meeting service enables EMCON employees to collaborate online in real time on engineering and manufacturing designs by adding a multimedia component to traditional conference calls. Requiring no additional software or expensive maintenance, AT&T's secure Web-meeting service allows EMCON to add documents, illustrations and diagrams from remote locations across an encrypted Secure Sockets Layer to audio conference participants across the globe.

"AT&T provides the complete suite of communications products needed to support our global enterprise environment," said Gene Horlander, Senior Director, Enterprise Technology Information & Operations, EMCON Technologies. "Being able to collaborate from anywhere gives us the ability to quickly respond to business requirements and provides the competitive edge needed in a demanding market."

In addition to its network data and conferencing services, AT&T will provide EMCON with international and local long distance voice services, local services and corporate calling cards. EMCON's interstate long distance services are provided under the AT&T Business Network Service, which bundles multiple integrated services onto a single bill and contract for ease and efficiency.

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About EMCON Technologies
EMCON Technologies is a leader in the global emission technology industry. The company serves worldwide light and commercial vehicle manufacturers. The $3 billion business has operations in 19 countries, 7,500 employees and several long-term joint venture relationships. EMCON is privately owned by One Equity Partners, an equity investment firm based in New York. One Equity Partners (OEP) manages $5 billion of investments and commitments for JPMorgan Chase & Co. in direct private equity transactions. Partnering with management, OEP invests in transactions that initiate strategic and operational changes in businesses to create long-term value. OEP's investment professionals are located across North America and Europe, with offices in New York, Chicago and Frankfurt.

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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