PSTN network topology
id:
pstn-network-topology-259-6823094
title:
PSTN network topology
text:
PSTN network topology is the switching network topology of a telephone network connected to the public switched telephone network (PSTN). In the United States and Canada, the Bell System network topology was the switching system hierarchy implemented and operated from c. 1930 to the 1980s for the purpose of integrating the diverse array of local telephone companies and telephone numbering plans to achieve nationwide Direct Distance Dialing (DDD) by telephone subscribers. It was the precursor of
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/PSTN_network_topology
date created:
date modified:
2023-10-06T10:23:33Z
main entity:
{"identifier":"Q7120765","url":"https://www.wikidata.org/entity/Q7120765"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/f/f2/PSTN_office_classification_hierarchy.png","width":1160,"height":795}
fields total:
13
integrity:
14