ATSI Executive Selected as Panelist for VoIP Technology Forum


PALM SPRINGS, CA -- (MARKET WIRE) -- November 15, 2006 -- NexTone User Forum -- ATSI Communications, Inc. (OTCBB: ATSX) announced today that its Sr. VP of Technology and Operations, Ruben Caraveo, will serve on a panel titled "Industry Pioneers: The New Networking Economy" at NexTone's 2006 User Forum on Thursday, November 16, 2006 at 10:30 AM PST. The event will be held at the Waldorf Astoria's LaQuinta Resort & Club in Palm Springs, California.

NexTone is hosting its 2006 User Forum, "Network Without Limits," from November 15-17, 2006. The forum provides NexTone's customers an opportunity to interact with one another and discuss industry trends to accelerate their business through new and expanded relationships.

The three-day event will feature a variety of discussions that examine intelligent IP interconnects, SIP trunking, NNI peering, and real-time session management. Discussions will be led by NexTone executives and will include insight from industry veterans and the experiences of NexTone's production customers.

As part of the forum, NexTone will discuss the different types of VoIP peering federations and services available today. The company will also present the benefits and importance of session management at the network edge and demonstrate the ways in which session management can be used by all types of service providers to build a foundation for VoIP.

ATSI Communications, Inc. operates through its two wholly owned subsidiaries, Digerati Networks, Inc. and Telefamilia Communications, Inc. Digerati Networks, Inc. is a premier global VoIP carrier serving rapidly expanding markets in Asia, Europe, the Middle East, and Latin America, with an emphasis on Mexico. Through Digerati's partnerships with established foreign carriers and network operators, interconnection and service agreements, and a NexTone powered VoIP network, ATSI believes it has clear advantages over its competition. Telefamilia Communications provides specialized retail communication services that includes VoIP services to the high-growth Hispanic market in the United States. ATSI also owns a minority interest of a subsidiary in Mexico, ATSI Comunicaciones, S.A. de C.V., which operates under a 30-year government issued telecommunications license.

NexTone Communications develops intelligent session management and interconnect systems for service providers who want to rapidly expand their reach and accelerate VoIP and multimedia revenues. NexTone's IntelliConnect System provides service providers with visibility and intelligence to exchange, optimize, secure, and bill for voice and multimedia sessions flowing across diverse IP and IMS network boundaries. More than 500 service providers and enterprises worldwide use NexTone's IntelliConnect System to manage technical complexities, optimize business economics, and remove partnership hurdles. NexTone is a recipient of the Maryland Technology Champions Awards for 2006. The company ranks number one in Deloitte's 2006 Technology Fast 50 Program for Maryland, and is one of the Top 50 companies for Deloitte's 2006 Technology Fast 500, a ranking of the 500 fastest growing technology, media, telecommunications, and life sciences companies in North America. NexTone is headquartered in Gaithersburg, Maryland, USA, with domestic and international offices worldwide.

Contact Information: Contact: Jack Eversull The Eversull Group 972-991-1672 972-991-7359 (fax) E-mail: Email Contact Web Site: www.atsi.net