- 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 contention that occurs when a terminal and data circuit-terminating equipment (DCE) specify the same channel at the same time to transfer a call request and handle an incoming call. Note: When call collision occurs, the DCE proceeds with the call request and cancels the incoming call. 2. The condition that occurs when a trunk or channel is seized at both ends simultaneously, thereby blocking a call. Synonym dual seizure. Deprecated synonym glare.
Industry:Telecommunications
The contact person who coordinates the updating and distribution of testline information for their company and is responsible for providing testline information to the industry.
Industry:Telecommunications
The constant of proportionality, represented by the symbol h, that relates the energy E of a photon with the frequency of the associated wave through the relation E = h, where h = 6. 626 × 10-34 joule•second.
Industry:Telecommunications
The constant frequency difference between a channel frequency and a reference frequency which may frequency hop.
Industry:Telecommunications
The connection of an additional impedance to an existing one in order to accomplish a specific effect, such as to balance a circuit or to reduce reflection in a transmission line.
Industry:Telecommunications
The connection of a user to two switching centers by separate access lines using a single message routing indicator or telephone number. 2. In satellite communications, the transmission of two carriers simultaneously through a single communication satellite repeater.
Industry:Telecommunications
The connection of a user to two or more switching centers by separate access lines using a single message routing indicator or telephone number. 2. In satellite communications, the capability of a communications satellite to function as a portion of a communications link between more than one pair of satellite terminals concurrently. Note: The three types of multiple access presently used with communications satellites are code-division, frequency-division, and time-division multiple access. 3. In computer networking, a scheme that allows temporary access to the network by individual users, on a demand basis, for the purpose of transmitting information. Note: Examples of multiple access are carrier sense multiple access with collision avoidance (CSMA/CA) and carrier sense multiple access with collision detection (CSMA/CD. )
Industry:Telecommunications
The connection of a terminal so that it is served by either of two switching centers. Note: In dual homing, a single directory number or a single routing indicator is used.
Industry:Telecommunications
The connection of a terminal facility to more than one switching center by separate access lines, each of which has a separate directory number.
Industry:Telecommunications
The connection between the termination of a user-network interface and an operator service access point that is used for communication between the user and the operator service.
Industry:Telecommunications
