Main Page | See live article | Alphabetical index In telecommunications, an outage is a telecommunications system service condition in which a user is completely deprived of service by the system. Note: For a particular system or a given situation, an outage may be a service condition that is below a defined system operational threshold, i.e., below a threshold of acceptable performance. See outage threshold. Source: from Federal Standard 1037C and from MIL-STD-188 This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.