This document outlines the fundamentals of switching in telecommunications.
Switching is defined as the process of establishing a pathway between sender and receiver via transmission nodes.
It plays a key role in efficiently delivering signals and relieving network congestion.
The text primarily discusses circuit switching,
highlighting its dedicated and temporary nature,
use of fixed bandwidth,
and its operational stages: request,
establishment,
transfer of information,
and connection release.
It also contrasts circuit switching with packet switching,
emphasizing advantages and disadvantages.
The example given is the Public Switched Telephone Network (PSTN).
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