A loop-open signal of 300 to 1000 ms at the network interface (NI) that is generated by the network, typically under the control of the far-end customer interface (CI), to control supplementary calling features when such features are provided by the near-end CI. [T1.407-1997]

Fading in which all frequency components of a received radio signal vary in the same proportion simultaneously.

Telephone service in which a single payment permits an unlimited number of local calls to be made without further charge for a specified period of time.

In a noise-measuring set, a noise weighting based on an amplitude-frequency characteristic that is flat over a frequency range that must be stated.
Note 1: Flat noise power is expressed in dBrn (f1 - f2) or in dBm (f1 - f2).
Note 2: "3-kHz flat weighting" and "15-kHz flat weighting" are based on amplitude-frequency characteristics that are flat between 30… (Read More →)

1. In computer security, an error of commission, an omission, or an oversight that allows protection mechanisms to be bypassed or disabled.
2. [An] error of commission, omission, or oversight in an information system (IS) that may allow protection mechanisms to be bypassed. [INFOSEC-99] Synonym loophole. [2382-pt.8]
3. An error of commission, omission, or oversight in a system that allows… (Read More →)

1. System analysis and penetration technique in which the specification and documentation for an information system (IS) are analyzed to produce a list of hypothetical flaws. This list is prioritized on the basis of the estimated probability that a flaw exists, on the ease of exploiting it, and on the extent of control or compromise it would provide. The prioritized… (Read More →)

A rule stating that if the thumb of the right hand points in the direction of an electric current, then the curled fingers point in the direction of the magnetic field that encircles the current; and further, if the curled fingers of the right hand describe the electric current in a solenoid, then the thumb points in the direction of… (Read More →)

Synonym diskette.

In video, any of several visual artifacts similar to (i.e., manifested as) a stroboscopic effect (jerkiness), sometimes caused by or related to vertical synchronization characteristics or video field display rates. [JSB]

A device that may assume either one of two reversible, stable states.
Note 1: The flip-flop is used as a basic control element in computer and communications systems.
Note 2: In a flip-flop, the transition from one stable state to the other is unstable, i.e., for the very short period during which the transition takes place, both outputs may assume… (Read More →)