INTEROP TECHNOLOGIES SECURES DEAL WITH METROPCS
FOR OVER-THE-AIR (OTA) DEVICE MANAGEMENT

Turnkey OTA 3.3 Solution Provides More Efficient Customer Activations and
Enables Faster Device Programming Updates for Growing Wireless Operator

FORT MYERS, FL.— OCT. 23, 2007—Interop Technologies, a leading provider of advanced wireless technology solutions, today announced that MetroPCS (NYSE: PCS) has agreed to purchase the Interop Over-the-Air Device Management Solution 3.3 for commercial deployment in all of its operating U.S. markets in Q4 2007.

MetroPCS, a rapidly growing wireless service provider, selected the highly scalable, Interop OTA 3.3 solution because it enables quick, efficient device activations for new customers and provides accurate, large-scale roaming list updates for subscriber handsets. These capabilities deliver convenience to MetroPCS and its customers and reduce expenses for the operator. The SS7-based OTA 3.3 solution enables MetroPCS to adjust its Preferred Roaming List automatically to manage cost structures and react quickly to changing roaming relationships in a competitive market. In addition, the Interop Technologies solution supports encrypted programming, increasing network security and reducing potential fraud.

"The Interop Technologies OTA solution will serve us well as we expand into new markets, grow our business, and continue to focus on customer satisfaction," said Malcolm Lorang, Chief Technology Officer, MetroPCS.

"We are pleased to leverage our network operations experience and state-of-the-art technology to deliver the reliability and scalability that MetroPCS requires," said John Dwyer, President and CEO, Interop Technologies. "We look forward to supporting MetroPCS and its success in the market."

During the CTIA WIRELESS I.T. & Entertainment conference Oct. 23-25 in San Francisco, Interop Technologies will be exhibiting in Booth #341, Hall B, Moscone Center.

About Interop Technologies
Interop Technologies (www.interoptechnologies.com) is a leading provider of advanced wireless technology solutions for the global wireless, packaged goods, and content industries. The company delivers hosted and turnkey messaging, device management, and personalization solutions. These technologies help increase revenue and brand loyalty for major companies and meet consumer demand for innovative services. A proven partner with in-depth wireless expertise, Interop Technologies currently has nearly 150 deployments with more than 40 wireless operators and major brands across North America, Latin America, and the Caribbean. Founded in 2002, Interop is headquartered in Fort Myers, FL.

About MetroPCS Communications, Inc.
Dallas-based MetroPCS Communications, Inc. (NYSE: PCS) is a provider of unlimited wireless communications service for a flat rate with no signed contract. MetroPCS owns or has access to licenses covering a population of approximately 140 million people in 14 of the top 25 largest metropolitan areas in the United States, including New York, Philadelphia, Boston, Miami, Orlando, Sarasota, Tampa, Atlanta, Dallas, Detroit, Las Vegas, Los Angeles, San Francisco, and Sacramento. Currently, MetroPCS has over 3.5 million subscribers and offers service in the Miami, Orlando, Sarasota, Tampa, Atlanta, Dallas, Detroit, San Francisco, and Sacramento metropolitan areas.

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