- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
Development of a system or part of a system where components at lower levels are traceable from those at the higher level. See also: Disciplined, Rigorous, Verified Development.
Industry:Telecommunications
Development of a system or part of a system where the documentation and evidence of testing against the documentation is to normal industry standards. See also: Rigorous, Structured Development, Verified Development.
Industry:Telecommunications
Development of a system or part of a system where the transformation from one representation to another is mathematically proven, or demonstrated to be consistent by an argument of equivalent value.
Industry:Telecommunications
Devices used to perform monitoring, controlling, and/or supervisory functions, at a distance.
Industry:Telecommunications
Dialing in which (a) pushbuttons or keys are used to actuate and connect audible tone oscillators to a line, (b) each button or key corresponds to a unique frequency or set of frequencies (as in dual-tone multifrequency signaling or DTMF,) and (c) each pushbutton or key represents a unique digit or symbol.
Industry:Telecommunications
Dialtone presented to the call originator after an access code has been dialed for access to a second, outside, telecommunications system or service. 2. Dialtone returned to the call originator after she/he has dialed an access number and has reached a switch providing access to modem, to a fax machine, to another telephone, etc.
Industry:Telecommunications
Differential pulse-code modulation in which the prediction algorithm is adjusted in accordance with specific characteristics of the input signal.
Industry:Telecommunications
Digital information transferred across the functional interface between a user and a telecommunications system, or between functional units within a telecommunications system, for the purpose of directing or controlling the transfer of user information or the detection and correction of errors. Note: Overhead information originated by the user is not considered to be system overhead information. Overhead information generated within the communications system and not delivered to the user is system overhead information. Thus, the user throughput is reduced by both overheads while system throughput is reduced only by system overhead.
Industry:Telecommunications
Digital information transferred across the functional interface between a user and a telecommunications system, or between functional units within a telecommunications system, for the purpose of directing or controlling the transfer of user information or the detection and correction of errors. Note: Overhead information originated by the user is not considered to be system overhead information. Overhead information generated within the communications system and not delivered to the user is system overhead information. Thus, the user throughput is reduced by both overheads while system throughput is reduced only by system overhead.
Industry:Telecommunications
Digital multiplexing in which two or more apparently simultaneous channels are derived from a given frequency spectrum, i.e., bit stream, by interleaving pulses representing bits from different channels. Note: Successive pulses represent bits from successive channels, e. G. , voice channels in a T1 system. 2. A multiplexing technique whereby two or more channels are derived from a transmission mediuim by dividing access to the medium into sequential intervals. Each channel has access to the entire bandwidth of the medium during its interval. This implies that one transmitter uses one channel to send several bit streams of information.
Industry:Telecommunications
