switching facilities

См. также в других словарях:

• Network switching subsystem — (NSS) (or GSM core network) is the component of a GSM system that carries out call switching and mobility management functions for mobile phones roaming on the network of base stations. It is owned and deployed by mobile phone operators and… …   Wikipedia

• Multiprotocol Label Switching — MPLS redirects here. For other uses, see Mpls. MPLS Layer Multiprotocol Label Switching (MPLS) is a mechanism in high performance telecommunications networks that directs data from one network node to the next based on short path labels rather… …   Wikipedia

• Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …   Wikipedia

• Essential facilities doctrine — The essential facilities doctrine (sometimes also referred to as the essential facility doctrine) is a legal doctrine which describes a particular type of claim of monopolization made under competition laws. In general, it refers to a type of… …   Wikipedia

• Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… …   Wikipedia

• Base station — The term base station can be used in the context of land surveying, wireless computer networking, and wireless communications.Land surveyingIn the context of external land surveying, a base station is a GPS receiver at an accurately known fixed… …   Wikipedia

• Telecommunications in North Korea — Communications in North Korea refers to the communication services available in North Korea. North Korea has yet to fully adopt mainstream internet technology due to its isolationist policies.[1] Contents 1 Telephone 1.1 International connection …   Wikipedia

• Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… …   Wikipedia

• List of US defensible targets — This list provides a possible identification of major US landmarks facilities, considered to be potential terrorist targets. See also Homeland Security and United States Department of Homeland Security.New York City* the Empire State Building *… …   Wikipedia

• AT&T Mobility — AT T Wireless redirects here. For the defunct wireless provider that was merged into Cingular in 2004, see AT T Wireless Services. AT T Mobility LLC Type Private (subsidiary of AT T Inc.) Industry …   Wikipedia

• Area code 504 — is a telephone area code that covers the greater New Orleans, Louisiana area. The area code originally served the entire state of Louisiana, but over time it was split. Currently, the area code is mostly, but not completely surrounded by area… …   Wikipedia