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supervisory signaling

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См. также в других словарях:

  • Signaling (telecommunications) — In telecommunication, signaling (signalling in British spelling) has the following meanings: the use of signals for controlling communications the information exchange concerning the establishment and control of a telecommunication circuit and… …   Wikipedia

  • Frequency-exchange signaling — is frequency change signaling in which the change from one significant condition to another is accompanied by decay in amplitude of one or more frequencies and by buildup in amplitude of one or more other frequencies.Frequency exchange signaling… …   Wikipedia

  • E&M signaling —    A form of signaling using separate leads (the E&M leads) for supervisory signaling and for transmitting voice or data. The E lead receives ground or is open from the signaling unit, and the M lead transmits battery or ground to the signaling… …   IT glossary of terms, acronyms and abbreviations

  • Single-frequency signaling — (SF) is line signaling (in telephony) in which dial pulses or supervisory signals are conveyed by a single voice frequency tone in each direction. SF and similar systems were used in 20th century carrier systems.An SF signaling unit converts DC… …   Wikipedia

  • E and M signaling — E M is a type of supervisory line signaling that uses separate leads, called the E lead and M lead, traditionally used in the North American telecommunications industry. There are different E M standards, with 8, 6, 4 and even 2 wires.Number of… …   Wikipedia

  • Separate channel signaling — is a form of signaling in which the whole or a part of one or more channels in a multichannel system is used to provide for supervisory and control signals for the message traffic channels. The same channels, such as frequency bands or time slots …   Wikipedia

  • out-of-band signaling —    Use of narrowband filters to place the voice signal on a carrier channel below 3,400 cps, reserving the 3400 3700 cps band for supervisory signals …   IT glossary of terms, acronyms and abbreviations

  • tone signaling —    Transmission of signals (supervisory, address, or alerting), over a telephone path by means of typically in band tones …   IT glossary of terms, acronyms and abbreviations

  • A&B — may refer to:GeographyAntigua and Barbuda (a small island nation in the Caribbean).Communications protocol*Refers to a bit signaling procedure used in SF (D4) framed T1 transmission facilities where one bit from the sixth and twelfth frame of… …   Wikipedia

  • Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …   Universalium

  • 1ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… …   Wikipedia

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