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Intellicall Operator Services, Inc. is a San Antonio, TX-based company in the Telecommunications sector.
roseville telephone museum is a Roseville, CA-based company in the Telecommunications sector.
Silver Star Telecom-Washington is a Vancouver, WA-based company in the Telecommunications sector.
Quantum Data Metrics is a Escondido, CA-based company in the Telecommunications sector.
Barnes Chase & Davis Inc is a Saginaw, MI-based company in the Telecommunications sector.