AT&T Announces New Contract with MIR3 Intelligent Notification

San Diego, California, March 29, 2007

AT&T Inc. (NYSE:T) today announced a new hosting services contract with San Diego-based MIR3 Intelligent Notification, Inc., a leading supplier of real-time notifications to global enterprises. Under the three-year contract, AT&T will serve as the primary services provider, bringing Enterprise hosting capabilities to MIR3 through the AT&T Internet Data Center (IDC) in San Diego.

AT&T Enterprise Hosting Services offer a rich portfolio of flexible hosting solutions that will improve overall network performance and ensure that MIR3's business-critical data and applications will be securely backed up and always accessible. This solution will support MIR3's need for expanded bandwidth, delivering an always-on infrastructure and data recovery capability that will help ensure consistent and secure application and Internet access for MIR3 customers and their critical emergency notifications.

In addition, MIR3 will be able to reliably and flexibly manage its applications in an infrastructure hosted in San Diego's AT&T IDC. AT&T Internet Data Centers are protected from intrusion and failure by multilayered security and rapid response data recovery abilities.

Aligned with AT&T's convergence strategy, the solution provided by AT&T will enable MIR3 to efficiently and reliably communicate emergency notifications to key employees within the network as well as to citizens throughout the city.

"With many Fortune 100 companies deploying on our enterprise-level notification system globally, we needed a provider capable of connecting our facilities via a high-speed fiber based network," said Dan Long, chief technology officer at MIR3. "We believe that the solution provided by AT&T will fulfill our bandwidth needs for the immediate future. This will allow us to better serve our customers' existing needs while allowing us to consider the expansion of our service offerings over the next few years."

With AT&T's reliable network platform, MIR3 will have the ability to complete approximately 100,000 calls in one hour.

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About MIR3 Intelligent Notification, Inc.
MIR3 provides automated Intelligent Notification (IN™) solutions for global and enterprise-wide communications and business continuity. MIR3's inEnterprise™, inAlertCenter™, inTechCenter™, inGovAlert™, and inLocalAlert™ are built on a geo-dispersed, scalable telephony and application server platform that directs the global dissemination of time-urgent information to and from any communications device across any communication medium. For more information visit www.mir3.com or contact 858-724-1248 or pr@mir3.com.

Note: This MIR3 press release and other news announcements are available as part of an Atom feed at www.mir3.com/feeds.

©2007 All Rights Reserved. IN, inGovAlert, inLocalAlert, inTechCenter, inAlertCenter, inEnterprise, and inWebServices are trademarks of MIR3, Inc.

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. As part of its three-screen integration strategy, AT&T is expanding video entertainment offerings to include next-generation television services such as AT&T U-verseSM TV. 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. 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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