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InvoTech Systems, Inc. is a Encino, CA-based company in the Telecommunications sector.
Cellular Phone USA Inc is a Boca Raton, FL-based company in the Telecommunications sector.
E-Tel Systems Corporation is a Sterling, VA-based company in the Telecommunications sector.
DataJack, Inc. is a wholly owned subsidiary of Quamtel, Inc. (OTCBB: QUMI), a public holding company headquartered in Dallas, Texas. Quamtel provides a comprehensive portfolio of advanced telecommunications technologies, enhanced service solutions and next generation broadband service. Quamtel operates in the U.S. and on a global scale through its subsidiaries DataJack, Inc. and WQN, Inc.
Great Lakes Comnet is a East Lansing, MI-based company in the Telecommunications sector.