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Telephone and Data Systems, Inc. is a Chicago-based telecommunications service company providing wireless, local- and long-distance telephone, broadband and video services to approximately 7 million customers in 36 states through its business units TDS Telecom and U.S. Cellular. The company began as a rural phone company in Wisconsin in 1969. In 1983 it founded U.S. Cellular as a subsidiary.
PTGi is one of the leading companies in the Telecommunications sector.
Stage 2 is a New York-based converged network services provider that offers a robust and redundant network with connectivity, quality of service and local number portability available across the country and, often, around the world, with CLEC capabilities in the New York metro market.
DT Corporation (IDT), is a multinational holding company with operations primarily in the telecommunications industry. The Company operates in two segments: Telecom Platform Services and Consumer phones Services, which comprise its IDT Telecom division. Telecom Platform Services provides telecommunications services, including prepaid and rechargeable calling products and international long distance traffic termination, as well as various payment services. Consumer Phone Services provides consumer local and long distance services in the United States.
Jive provides cloud-based phone systems and Unified Communications services. Jive`s customers include high-growth businesses and public sector institutions needing a scalable platform that is more flexible and cost-effective than their existing legacy systems. Jive`s cloud architecture offers an integrated, seamless experience that provides richer context and creates more efficient connections between co-workers and clients. Jive`s cloud delivery model ensures that each organization always has the latest technology, features, and applications—making Jive the last phone system you`ll ever need.