- 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.
In the Internet Protocol suite, a standard, connection-oriented, full-duplex, host-to-host protocol used over packet-switched computer communications networks. Note 1: TCP corresponds closely to the ISO Open Systems Interconnection--Reference Model (OSI--RM) Layer 4 (Transport Layer. ) Note 2: The OSI--RM uses TP-0 or TP-4 protocols for transmission control.
Industry:Telecommunications
In the Internet Protocol suite, a standard, low-overhead, connectionless, host-to-host protocol that is used over packet-switched computer communications networks, and that allows an application program on one computer to send a datagram to an application program on another computer. Note: The main difference between UDP and TCP is that UDP provides connectionless service, whereas TCP does not.
Industry:Telecommunications
In The Internet protocol, the decimal-numeric, fixed-length address that identifies the hosts of data sources, and, specifically, a communication port. Note: A single Internet address can have multiple URLs. Synonyms IP address, Internet protocol address.
Industry:Telecommunications
In the Internet, a participant in a chat room or a subscriber to a mailing list or newsgroup who passively observes but does not actively participate in the exchange.
Industry:Telecommunications
In the ionosphere, a layer that has a free-electron density sufficient to reflect radio waves. Note 1: The principal reflecting layers are the E, F1, and F2 layers in the daylight hemisphere. Note 2: A critical frequency is associated with the reflection by each layer.
Industry:Telecommunications
In the ITU-T International X. 121 format, the first four digits of the international data number, the three digits that may represent the data country code, and the 1-digit network code, i.e., the network digit.
Industry:Telecommunications
In the ITU-T International X. 121 format, the sets of digits that comprise the complete address of the data terminal end point. Note: For an NTN that is not part of a national integrated numbering format, the NTN is the 10 digits of the ITU-T X. 25 14-digit address that follow the Data Network Identification Code (DNIC. ) When part of a national integrated numbering format, the NTN is the 11 digits of the ITU-T X. 25 14-digit address that follow the DNIC.
Industry:Telecommunications
In the ITU-T X. 400 Recommendations, the family of services and protocols that provides the functions for global electronic-mail (e-mail) transfer among local mail systems.
Industry:Telecommunications
In the microstructure of a transmission medium, a site at which electromagnetic waves are scattered. Note 1: Examples of scattering centers are vacancy defects; interstitial defects; inclusions, such as a gas molecules, hydroxide ions, iron ions, and trapped water molecules; and microcracks or fractures in dielectric waveguides. Note 2: Scattering centers are frozen in the medium when it solidifies and may not necessarily cause Rayleigh scattering, which varies inversely as the fourth power of the wavelength. For example, in glass optical fibers, there is a high attenuation band at 0. 95 m, primarily caused by scattering and absorption by OH (hydroxyl) ions.
Industry:Telecommunications
In the military community, an area in which temperature, humidity, or access is controlled because it contains equipment, such as communications, computing, control, or support equipment, that requires such controls.
Industry:Telecommunications
