- 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.
The functions that are performed by the message transfer part at level 3 and are common to, and independent of, the operation of individual signaling links. They include the signaling message handling functions and the signaling network management functions. Note: The message handling functions include functions for message distribution, message discrimination, and message routing.
Industry:Telecommunications
The functions associated with accessing a metallic facility for the purpose of testing. MTAU functionality may be embedded within a network element (NE) or may consist of stand-alone equipment.
Industry:Telecommunications
The functioning of systems, equipment, or processes in a desired manner at the proper time under control of mechanical or electronic devices that operate without human intervention.
Industry:Telecommunications
The functionally equivalent area from which an antenna directed toward the source of the received signal gathers or absorbs the energy of an incident electromagnetic wave. Note 1: Antenna effective area is usually expressed in square meters. Note 2: In the case of parabolic and horn-parabolic antennas, the antenna effective area is about 0. 35 to 0. 55 of the geometric area of the antenna aperture.
Industry:Telecommunications
The functional part of the Signaling System No. 7 (SS7) protocol, i.e., the part that specifies the interexchange signaling procedures for the set up and tear down of trunk calls between networks. The ISDN User Part is one of the specified users of the Message Transfer Part (MTP) transport capability of the SS7 interconnections. The user part identification is encoded in the service indicator (SI) portion of the service information octet (SIO. )
Industry:Telecommunications
The functional entity that provides access to an operator service from an exchange in the network. The operator service may be co-located with the exchange or located elsewhere.
Industry:Telecommunications
The functional entity responsible for initiating a particular access attempt. Note: An access attempt can be initiated by a source user, a destination user, or the telecommunications system.
Industry:Telecommunications
The function that generates management information and empty bus slots at the point on each bus where data flow begins.
Industry:Telecommunications
The frequency of an oscillator used to provide sustaining power to a device, such as a laser or parametric amplifier, that requires rf or optical power.
Industry:Telecommunications
The frequency either above which or below which the output of a circuit, such as a line, amplifier, or filter, is reduced to a specified level. 2. The frequency below which a radio wave fails to penetrate a layer of the ionosphere at the incidence angle required for transmission between two specified points by reflection from the layer.
Industry:Telecommunications
