A machine that uses typed input and output, usually with a visual text display, to enable individuals with hearing or speech impairments to communicate over a telecommunications network.

The aggregate of equipment, such as radios, telephones, teletypewriters, facsimile equipment, data equipment, cables, and switches, used for providing telecommunications services.

The organizations, personnel, procedures, facilities, and networks employed to transmit and receive information by electrical or electronic means.
Note 1: Telecommunications facilities include, but are not necessarily limited to, terrestrial radio, metallic and optical fiber cables, artificial Earth satellite communications, radio and television stations (traditional broadcast as well as cable and satellite broadcast), public switched telephone network(s), etc.
Note 2:… (Read More →)

A communications facility or channel, including feeder and local distribution plant, having a termination in a center in the telecommunications network. Examples of such a link include (but are not necessarily restricted to): optical-fiber cable, coaxial cable, metallic cables, transmitting and receiving antenna. [After T1.328-1995]

Equipment powered from a primary or secondary distribution of a centralized dc power system owned or operated by exchange and interexchange carriers. [After T1.330-1997]

A network that interfaces with a telecommunications network at several points in order to receive information from, and to control the operation of, the telecommunications network.
Note: A TMN may use parts of the managed telecommunications network to provide for the TMN communications.

See communications security.

1. Any service provided by a telecommunication provider.
2. A specified set of user-information transfer capabilities provided to a group of users by a telecommunications system.
Note: The telecommunications service user is responsible for the information content of the message. The telecommunications service provider has the responsibility for the acceptance, transmission, and delivery of the message.

In the Telecommunications Service Priority program, the level that may be assigned to an NS/EP telecommunications service, which specifies the order in which provisioning or restoration of the service is to occur relative to other NS/EP or non-NS/EP telecommunication services.
Note: Priority levels authorized are designated (highest to lowest) "E," "1," "2," "3," "4," and "5" for provisioning and "1,"… (Read More →)

The priority level(s) designated for the provisioning or restoration of a particular NS/EP telecommunications service.