October 7, 1997 Dallas, TX -- Allegiance Telecom, Inc., announced its selection of Dallas as its headquarters today in a meeting with the Dallas City Council and Mayor Ron Kirk. The company has leased more than 40,000 square feet at INFOMART to house its corporate headquarters and the digital switch for its Dallas/Fort Worth network.

Allegiance Telecom is a competitive local exchange carrier (CLEC) and plans to offer a full suite of telecommunications services, including local exchange, long distance, international calling, high speed data transmission and Internet services in 20 major metropolitan areas across the United States. Its first network will be in the Dallas/Fort Worth Metroplex with services offered across most areas of Dallas, Fort Worth, Irving, Grand Prairie, Arlington, Richardson, Addison, Plano and other areas. Allegiance has filed its application for certification with the Public Utility Commission of Texas and has begun engineering and design of its Dallas/Fort Worth network. Initial service is scheduled to commence in the first quarter of 1998.

In making the announcement, Tony Parella, vice president and general manager of Allegiance Telecom of Texas, stated, "The high level of economic activity and tremendous growth of Internet usage in the Metroplex have produced an overwhelming and unsatisfied demand by businesses for reliable, high-quality telecommunications services. Allegiance will supply its customers with true one-stop shopping for all their communications needs---packaged with unique consolidated billing arrangements and superior customer service."

Allegiance chairman and CEO Royce J. Holland added, "I am pleased to announce that Allegiance Telecom is the first nationwide competitive local exchange carrier to be headquartered in Texas. Mayor Kirk, Councilman Stimson, the City Staff and the Dallas Chamber of Commerce have been very helpful to us and have created the nation's premier business climate for telecommunications and other high technology industries. Allegiance will deploy its network facilities to take full advantage of the Telecommunications Act of 1996 to bring its Metroplex customers a high-quality choice and flexible new solutions." Holland, the former president of MFS Communications Company, was an industry leader in developing the competitive provisions of the 1996 Act, which opened the $90 billion local exchange market to competition throughout the United States.

In welcoming Allegiance Telecom to Dallas, Mayor Ron Kirk stated, "I am thrilled about their decision in making Dallas their corporate home. We are proud for having had the opportunity to work with Royce and Tony. Allegiance has selected an outstanding location to grow their business, and the city of Dallas has gained a great addition to its business community."

Rick Douglas, president of the Greater Dallas Chamber adds, "Allegiance's decision to locate in the city of Dallas is great for the community. We're glad we had the opportunity to work with them and look forward to a long standing partnership"

INFOMART president Tom Jones said, "We are ecstatic about having Allegiance join our technology community. This organization is a perfect fit for INFOMART, utilizing all aspects of our extraordinary infrastructure and marketing services to support their rapid growth strategy."

INFOMART

INFOMART is a 1.6 million square-foot technology community which houses more than 110 technology companies and hosts more than 1,000 technology trade shows, meetings and conventions each year. Vendors reside at INFOMART to increase sales, gain exposure and participate in a variety of industry trade shows or marketing programs which connect them to technology users. Built by world-renowned real estate developer Trammell Crow and opened in 1985, INFOMART is the world's only successful technology market center. INFOMART houses other telecommunications companies and Internet Service Providers (ISPs), such as WorldCom, GTE Internetworking (formerly BBN Planet), OnRamp Technologies, IXC Communications, Telecom Resources and Verio.

MetaSolv Software, Inc., headquartered in Plano, Texas, was founded in 1992 to develop and market integrated client/server-based software solutions for the telecommunications industry. MetaSolv's Telecom Business Solutionþ software enables service providers to automatically manage and synchronize their entire order processing, provisioning and service assurance cycle from telephony to enhanced services in the local exchange, long distance and wireless markets. MetaSolv has regional offices in Chicago, Denver, and McLean, VA. MetaSolv's website is www.metasolv.com