interoffice signals

См. также в других словарях:

• common-channel interoffice signaling —    (CCIS)    Digital technology used by AT&T to enhance ISDN; uses a separate data line to route interoffice signals to provide a faster call set up and more efficient use of trunks …   IT glossary of terms, acronyms and abbreviations

• telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …   Universalium

• 2600 hertz — 2600 Hz is the frequency in hertz (cycles per second) that AT T formerly put as a steady signal on any long distance telephone line that was not currently in use. Prior to widespread use of out of band signaling, AT T used in band signaling,… …   Wikipedia

• Clock generator — A desktop PC clock generator, based on the chip ICS 952018AF and 14.3 MHz resonator (on the left) …   Wikipedia

• Phreaking — is a slang term coined to describe the activity of a subculture of people who study, experiment with, or explore telecommunication systems, like equipment and systems connected to public telephone networks. The term phreak is a portmanteau of the …   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

• Panel switch — The panel switching system was an early type of automatic telephone exchange, first put into urban service by the Bell System in the 1920s and removed during the 1970s. The Panel and Rotary systems were developed in parallel by Bell Labs before… …   Wikipedia

• Common Channel Signaling — In telephony, Common Channel Signaling (CCS), in the US also Common Channel Interoffice Signaling (CCIS), is the transmission of signaling information (control information) on a separate channel from the data, and, more specifically, where that… …   Wikipedia

• 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

• Jet Propulsion Laboratory Developmental Ephemeris — The Jet Propulsion Laboratory Developmental Ephemeris (JPL DE) is a product of the Jet Propulsion Laboratory in Pasadena, California. This ephemeris is a system of numerical coefficients (for Chebyshev polynomials) which can be used to calculate… …   Wikipedia