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Lumen Technologies operating companies consist of operations inherited from various predecessor companies, which is reflected in the differing names of the companies and partially overlapping service territories; all operating companies do business using the CenturyLink brand. Predecessors include:
US West Communications was the first local telephone company to offer Caller ID service in 1991, nearly four years before any other local telco could do so. They were the first U.S. telco to upgrade their PSTN to electronic switching before 1990 and they were the first to offer residential and business ISDN and later, DSL services to their ...
Qwest Corporation, doing business as CenturyLink QC, is a Regional Bell Operating Company owned by Lumen Technologies.It was originally named Mountain States Telephone and Telegraph Company, later becoming known as Mountain Bell, then US West Communications, Inc. from 1991 to 2000.
Telephony (/ t ə ˈ l ɛ f ə n i / tə-LEF-ə-nee) is the field of technology involving the development, application, and deployment of telecommunications services for the purpose of electronic transmission of voice, fax, or data, between distant parties.
Level 3 Communications, Inc. was an American multinational telecommunications and Internet service provider company headquartered in Broomfield, Colorado. [4] It ultimately became a part of CenturyLink (now Lumen Technologies), where Level 3 President and CEO Jeff Storey was installed as Chief Operating Officer, becoming CEO of CenturyLink one year later in a prearranged succession plan.
Ericsson's business includes technology research, development, network systems and software development, and running operations for telecom service providers. [ 81 ] [ 91 ] and software [ 92 ] [ 93 ] Ericsson offers end-to-end services for all major mobile communication standards, [ 94 ] and has three main business units.
C&P Tel. Co. of Maryland logo, 1964-1969. The C&P Telephone Company of Maryland was founded in 1884 as The Chesapeake and Potomac Telephone Company of Baltimore City. [1] It changed its name to The Chesapeake and Potomac Telephone Company of Maryland on January 3, 1956, and the corporate name at this point changed to C&P Telephone of Maryland.
Big River Telephone's service platform took a technological leap after their Voice over Internet Protocol local switching network was established in 2004. This new approach allowed Big River Telephone to deliver regular telephone service with enhanced features as well as high speed Internet and other advanced data services to small businesses ...