public switched telephone network wikipedia - EAS
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See all on Wikipediahttps://en.wikipedia.org/wiki/Public_switched_telephone_networkThe public switched telephone network (PSTN) provides infrastructure and services for public telecommunication. The PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators. These consist of telephone lines, fiber optic … See more
Commercialization of the telephone began in 1876, with instruments operated in pairs for private use between two locations. Users who wanted to communicate with persons at multiple locations had as many telephones as … See more
Network topology
The PSTN network architecture had to evolve over the years to support increasing numbers of subscribers, calls, connections to other countries, direct dialing and so on. The model developed by the United … See moreThe task of building the networks and selling services to customers fell to the network operators. The first company to be incorporated to provide PSTN services was the See more
Wikipedia text under CC-BY-SA license- https://en.wikipedia.org/wiki/Telephone_network
A telephone network is a telecommunications network that connects telephones, which allows telephone calls between two or more parties, as well as newer features such as fax and internet. The idea was revolutionized in the 1920s, as more and more people purchased telephones and used them to communicate news, ideas, and personal information. During the 1990s, it was further revolutionized by the advent of computers and other sophisticated communication device…
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- https://en.wikipedia.org/wiki/Talk:Public_switched_telephone_network
"The public switched telephone network (PSTN) is the aggregate of the world's switched telephone networks that are operated by national, regional, or local telephony operators, …
- https://en.wikipedia.org/wiki/Public_data_network
- A public data network is a network established and operated by a telecommunications administration, or a recognized private operating agency, for the specific purpose of providing data transmission services for the public. The first public packet switching network, RETD, was deployed in 1972 in Spain. "Public data network" was the common name given...
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Public switched telephone network - Wikipedia - Al-Quds University
https://wiki.alquds.edu/?query=Public_switched_telephone_networkThe PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators. These consist of telephone lines , fiber optic …
- https://en.wikipedia.org/wiki/Routing_in_the_PSTN
Routing in the PSTN is the process of forwarding telephone calls between the constituent telephone networks that comprise the public switched telephone network (PSTN). …
Public Switched Telephone Network - tutorialspoint.com
https://www.tutorialspoint.com/public-switched-telephone-networkJul 30, 2019 · Public Switched Telephone Network (PSTN) is an agglomeration of an interconnected network of telephone lines owned by both governments as well as commercial …
- https://en.wikipedia.org/wiki/List_of_telephone_switches
List of the mainly electro mechanical switching systems from Hasler AG Bern, which were used in public telephone network in Switzerland for many decades. Hasler AG finally merged into …
Public switched telephone network - Wikipedia
https://www.library.snls.org.sz/archive/doc/...The Public Switched Telephone Network(PSTN) is the concatenation of the world's public circuit-switchedtelephonenetworks, in much the same way that the Internetis the concatenation …
- https://en.wikipedia.org/wiki/Telephone
The invention of the transistor in 1947 dramatically changed the technology used in telephone systems and in the long-distance transmission networks, over the next several decades. With …
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