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About CornerStone Telephone
Corner stone telephone company is a United States corporation that sells voice, data, and other communications hardware and services to businesses in the Northeast. They offer businesses voice and data communication, as well as hosted IP products that are coupled with local customer service. They were listed in the top 20% of the fastest growing private companies in the U.S., and were third in the country for fastest growing telecommunication companies in New York State, as well as having a cloud and hosted services provider.
