incoming trunk
1trunk, one-way — A trunk used for calls from one end only. At the originating end, the one way trunk is known as an outgoing trunk; at the other end, it is known as an incoming trunk …
2trunk-to-tie trunk connections — Switching system s ability to supply an attendant with the option of offering an incoming trunk call to a tie trunk which ends in a different location …
3incoming call identification — Feature that provides an attendant console with visual identification of the type of service or trunk group of incoming calls …
4incoming call indicator — Device that provides an attendant console with visual or audible identification of the type of service or trunk group of the incoming calls …
5One-way trunk — In telecommunication, a one way trunk is a trunk between two switching centers, over which traffic may be originated from one preassigned location only. Note 1: The traffic may consist of two way communications; the expression one way refers only …
6tandem trunk service — Incoming trunks are fed into outgoing trunks …
7Toll switching trunk — In telecommunication, a toll switching trunk is a trunk connecting one or more end offices to a toll center as the first stage of concentration for intertoll or long distance traffic. Operator assistance or participation may be an optional… …
8ITSO — • Incoming Trunk Service Observation • (IBM) International Technical Support Organization …
9Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …
101ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… …
