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Telephone Switching International, Inc. is a Milan, TN-based company in the Telecommunications sector.
Optimal Engineering Systems is a Van Nuys, CA-based company in the Telecommunications sector.
Union Telecard Alliance (www.uniontelecard.com) is one of the prepaid industry's largest distributors of prepaid calling cards with sales of over $400 million per year. Carrying over 125 brands of calling cards including Megatel, Metropolis,
john m taylor is a Lutz, FL-based company in the Telecommunications sector.
Acosta Communications is a Wichita, KS-based company in the Telecommunications sector.