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Flashcards in The Public Telephone Network Deck (17):
1

identifies and connects the subscriber to a suitable transmission path

switching functions

2

supply and interpret control and supervisory signals needed to perform the operation

signaling functions

3

any device used to originate and terminate calls and to transmit and receive signals into and out of the telephone network

Instrument or station equipment

4

central location where subscribers are interconnected, either temporary or on a permanent basis

Exchange

5

the first local telephone exchange were ___, where manual interconnects were accomplished using patchcords and jacks

patch panel or boards / switchboards

6

Each telephone line could have more than 10 or more subscribers connected to the CO using the SAME local loop

Party Lines

7

is a system of sensors, switches and other electrical and electronic devices that allows subscriber to give instructions directly to the switch without having to go through an operator

automated switching system

8

is a programmable matrix that allows circuits to be connected to one another

circuit switch

9

Exchanges that connect directly to the local loop

local exchange or central office

10

A telephone call completed within a single local exchange

intraoffice call or intraswitch call

11

calls placed between 2 stations that connected to a different local exchange or CO

Interoffice calls or interswitch calls

12

special facilities used for CO to CO connection

Trunk or interoffice trunk

13

is an exchange w/o any local loops connected to it

tandem office

14

only facilities connected to switching machines in a tandem office

trunks

15

other terms for tandem switches

tandem trunks or intermediate trunks

16

interstate telephone calls require a special telephone office called

toll office

17

when a subscriber initiates a long distance call, the local exchange connects the caller to a toll office through a facility called

toll connecting trunk