The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company...

of the Bell System in the U.S. was ended on January 8, 1982. AT&T Corporation proposed by in a consent decree to relinquish control of the Bell Operating...

diving bell is not designed to move under the control of its occupants, or to operate independently of its launch and recovery system. The wet bell is a...

Claude Shannon and Willard Boyle. Bell Labs became a subsidiary of AT&T Technologies in 1984 after the Bell System was broken up. After the breakup, its...

as an "ILEC" (Incumbent Local Exchange Carrier) they were the former Bell System or Independent Telephone Company responsible for providing local telephone...

The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing...

The Bell Telephone Company was the initial corporate entity from which the Bell System originated to build a continental conglomerate and monopoly in telecommunication...

multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken...

depends on which Bell's state the two qubits are in initially. Bell's states can be generalized to certain quantum states of multi-qubit systems, such as the...

carrier systems developed by AT&T Bell Laboratories for digital transmission of multiplexed telephone calls. The first version, the Transmission System 1 (T1)...

Bell Telephone refers to the Bell System of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of...

Bell Canada (commonly referred to as Bell) is a Canadian telecommunications company headquartered at 1 Carrefour Alexander-Graham-Bell in the borough of...

emergency situations, when the local communications system can be compromised. Telephones portal Bell System Bell Telephone Memorial Cellular network Cordless...

Alexander Graham Bell (/ˈɡreɪ.əm/, born Alexander Bell; March 3, 1847 – August 2, 1922) was a Scottish-born Canadian-American inventor, scientist, and...

popular as of July 2016. In 1962, the Bell System, the U.S. telephone monopoly, presented its Bellboy radio paging system at the Seattle World's Fair. Bellboy...

yearly by the IEEE society. The journal was originally established as the Bell System Technical Journal (BSTJ) in New York by the American Telephone and Telegraph...

standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary...

Phone System (AMPS) was an analog mobile phone system standard originally developed by Bell Labs and later modified in a cooperative effort between Bell Labs...

Packard Bell Corporation from Teledyne; in spite of similarities in their names, Packard Bell had no connection to either Hewlett Packard or Bell System. Packard...

company was formed in 1984 as Bell Atlantic as a result of the breakup of the Bell System into seven companies, each a Regional Bell Operating Company (RBOC)...

BellSouth, LLC (stylized as BELLSOUTH and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta...

"The Bell System Telephone Companies–Then and Now". The Bell System Memorials. Retrieved August 8, 2024.. Conor Lee (February 21, 2014). "Southern Bell Telephone...

1910s through the 1984 Bell System divestiture was The Pacific Telephone and Telegraph Company. As of 2002, the name “Pacific Bell” is no longer used in...

competitor in Bell markets. These independent phone companies did not interconnect to the Bell System; though modern commentators suggest Bell refused to...

Service (SMS), and other services. The protocol was introduced in the Bell System in the United States by the name Common Channel Interoffice Signaling...

century. This monopoly was known as the Bell System, and during this period, AT&T was also known by the nickname Ma Bell. In 1982, U.S. regulators broke up...

subsidiary of the Bell System. It was a division of Southwestern Bell Corporation. It continued to operate as Southwestern Bell Mobile Systems until 2000, when...

communications devices and switching centers. DTMF was first developed in the Bell System in the United States, and became known under the trademark Touch-Tone...

While part of the Bell System, it was at times the biggest Bell Operating Company of AT&T's 22 local telephone companies. Southwestern Bell continued to grow...

were first defined in the Universal Service Ordering Code (USOC) system of the Bell System in the United States for complying with the registration program...