other common carrier (OCC)A communications common carrier--usually an interexchange carrier--that offers communications services in competition with AT&T and/or the established U.S.
OU (organizational unit)An Active Directory container object used within domains. An organizational unit is a logical container into which users, groups, computers, and other…
out callA universal personal telecommunications (UPT) call type that permits a UPT user to make calls from any terminal on any network, and have access to his/her…
Out of Band Laser Flux(Sensor) Laser energy directed at a sensor that is intended to damage or disrupt the sensor and is outside the sensors bandwidth.
out of scopeA variable is in scope as long as the program's flow of control is within the variable's defining block. Otherwise, it is out of scope.
out-call registrationA feature that enables the universal personal telecommunications (UPT) user to register for outgoing calls from the current terminal address to allow…
out-of-areaAn area not included in the subscribed service. An area may be defined in terms of a state/province, NPA, LATA, etc. [T1.207-1998]
out-of-band emissionEmission on a frequency or frequencies immediately outside the necessary bandwidth which results from the modulation process, but excluding spurious…
out-of-band notificationIn encryption, notification using a communication means other than the primary communication means. [After X9.49]
out-of-band signalingSignaling that uses a portion of the channel bandwidth provided by the transmission medium, e.g.
out-of-bounds valueA redundant value used to indicate that a different action from the norm is required at some point.
out-of-frame-alignment timeThe time during which frame alignment is effectively lost. Note: The out-of-frame-alignment time includes the time to detect loss of frame alignment and…
out-slot signalingSignaling performed in digital time slots that are not within the channel time slot.
Out-YearsNormally, six years beyond the year being worked in the upcoming POM/budget.
outage thresholdFor a supported performance parameter of a system, the value that establishes the minimum performance level at which the system is considered to remain in…
outbound hostThe host computer that receives a newsfeed. [Exchange 5.5]
Outbound LinkA link from one website pointing at another external website. Some webmasters believe in link hoarding, but linking out to useful relevant related…
Outbound linkslinks that direct "off-site" to another website
outcardA device used to physically replace material that has been removed from a file that indicates what was taken, by whom, and when
outdialingA process in which Unified Messaging (UM) dials or transfers calls. Unified Messaging generally receives calls, but sometimes dials calls.
Outer Space Treaty of 1967A multilateral treaty signed and ratified by both the United States and the (former) Soviet Union.
outgoing accessThe ability of a user to originate data calls via an ISDN. [T1.615-1992]
outgoing mail databaseA file (Mail_.box) that temporarily stores outgoing mail that users create when not connected to a mail server.
OutlaysOutlays are payments made (generally through the issuance of checks or disbursement of cash) to liquidate obligations.
Outlook AnywhereA feature that makes it possible for a user to access their Exchange Server mailbox from any workstation using the full Outlook client, regardless of the…
Outlook E-Mail PostmarkA computational proof that Outlook applies to outgoing messages to help recipient messaging systems distinguish legitimate e-mail from junk e-mail.
Outlook Voice AccessA feature that allows a Unified Messaging-enabled user to access their Microsoft Exchange Server mailbox over the telephone.
Outlook Web AccessThe Web browser interface to Exchange Server mailbox and public folder data. The Outlook Web Access client in Exchange Server 5.
Outlook Web Access LightA lightweight version of Outlook Web Access optimized for accessibility and compatibility with the widest array of browsers and operating systems.
Outlook Web Access Web PartA piece of the user interface (UI) in Outlook Web Access that can be hosted in iframes as part of other Web applications such as SharePoint Portal Server…
outpulsingThe process of transmitting address information over a trunk from one switching center or switchboard to another.
output1. Information retrieved from a functional unit or from a network, usually after some processing. 2. An output state, or sequence of states. 3.
output ratingThe expression of the stated power available at the output terminals of a transmitter when connected to the normal load or its equivalent. 2.
Outside Line Access CodeThe prefix that is used to access an outside line. This prefix is typically 9. [Exchange 2007]
outside plant1. In telephony, all cables, conduits, ducts, poles, towers, repeaters, repeater huts, and other equipment located between a demarcation point in a…
Outside ThreatAn unauthorized entity from outside the domain perimeter that has the potential to harm an Information System through destruction, disclosure…
outsourcingprocess of contracting out certain activities of an organization
ovalityThe attribute of an optical fiber, the cross section of the core or cladding of which deviates from a perfect circle. 2.
Over The ShoulderA version of elevation prompt that allows an administrator to enter administrative credentials to allow a process to run with the full access token of the…
over-the-air key distributionProviding electronic key via over-the-air rekeying, over-the-air key transfer, or cooperative key generation. [INFOSEC-99]
over-the-air key transferElectronically distributing key without changing traffic encryption key used on the secured communications path over which the transfer is accomplished.
over-the-air rekeying (OTAR)Changing traffic encryption key or transmission security key in remote crypto -equipment by sending new key directly to the remote crypto-equipment over…
over-the-horizon radarA radar system that makes use of the atmospheric reflection and refraction phenomena to extend its range of detection beyond line of sight.
overfillThe condition that prevails when the numerical aperture of an optical source, such as a laser, light-emitting diode, or optical fiber, exceeds that of the…
overflowIn telephony, the generation of potential traffic that exceeds the capacity of a communications system or subsystem. 2.
overhead bitAny bit other than a user information bit.
overhead informationDigital information transferred across the functional interface between a user and a telecommunications system, or between functional units within a…
overlap pulsingAn arrangement for exchange-carrier-to-interexchange carrier (EC-to-IC) outpulsing that allows seizure of the EC-to-IC trunk and initiation of outpulsing…