ATSI Communications President/CEO Featured in Interview With WallSt.net

SAN ANTONIO, TX--(Marketwire - July 31, 2007) - ATSI Communications, Inc. (ATSI) (OTCBB: ATSX) announced today that Arthur L. Smith, President & Chief Executive Officer of the Company will update the investment community in an interview with www.wallst.net on August 2, 2007 at 11:00 a.m. CDT. Topics to be discussed in the interview include the Company's accomplishments in fiscal 2007, recent developments and market trends, as well as strategic and financial milestones for fiscal 2008, which begins August 1, 2007. The interview is being conducted by Sr. Analyst, Mike Chiavetta.

To hear the interview in its entirety, visit www.wallst.net and click on "Interviews." Interviews require free registration, and can be accessed either by locating the respective company's ticker symbol under the appropriate exchange on the left-hand column of the "Interviews" section of the site, or by entering the respective company's ticker symbol in the Search Archive window.

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.

The information in this news release includes certain forward-looking statements that are based upon management's expectations and assumptions about certain risks and uncertainties that can affect future events. Although management believes these assumptions and expectations to be reasonable on the date of this news release, these risks and uncertainties may cause actual events to differ material from managements those contained in this news release. The risks and uncertainties include, but are not limited to, continuing as a going concern, availability and cost of our present vendors and suppliers, and absence of any change in government regulations or other costs associated with data transmission over the Internet or termination of transmissions in foreign countries.

Contact Information: Contact: Jack Eversull The Eversull Group 972-378-7917 972-378-7981 (fax) E-mail: Web Site: www.atsi.net