Product Code Database
In telecommunications, interconnection is the physical linking of a carrier's network with equipment or facilities not belonging to that network. The term may refer to a connection between a carrier's facilities and the equipment belonging to its customer, or to a connection between two or more carriers.
In United States regulatory law, interconnection is specifically defined (47 C.F.R. 51.5) as "the linking of two or more networks for the mutual exchange of traffic."
One of the primary tools used by regulators to introduce competition in telecommunications markets has been to impose interconnection requirements on dominant carriers.
This began to change in the landmark case Hush-A-Phone v. United States 1956, which allowed some non-Bell owned equipment to be connected to the network, and was followed by a number of other cases, regulatory decisions, and legislation that led to the transformation of the American long distance telephone industry from a monopoly to a competitive business.
This further changed in FCC's Carterfone decision in 1968, which required the Bell System companies to permit interconnection by radio-telephone operators.
Today the standard electrical connector for interconnection in the US, and much of the world, is the registered jack family of standards, especially RJ11. This was introduced by the Bell System in the 1970s, following a 1976 FCC order. Since then, it has gained popularity worldwide, and is a de facto international standard.
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