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A telephone network is a telecommunications network that connects telephones to support calls between them that facilitate human communication. The technology eventually came to be used for communication between humans and machines (i.e. fax and dial-up Internet access) although today this has been replaced with digital technologies.
The world was transformed in the 1920s as the phone became ubiquitous; with people sharing news, ideas, and personal information. [1] During the 1990s, the phone helped transform the world again with the advent of computers, sophisticated communication devices, and via dial-up internet. [2]
There are a number of types of telephone network:
A telephone company owns and builds landline and wireless networks and provides services to the public under license from the national government. A mobile Virtual Network Operators leases capacity wholesale from a telephone company and sells telephony service to the public directly.