switched network Archives - International Call Forwarding and Conferencing for Business & Personal Use https://aitelephone.com/blog/category/switched-network/ Contact - 1 800 600 6151 US/Canada - +1 323 880 4976 Intl Sun, 09 Sep 2018 18:50:42 +0000 en-US hourly 1 https://aitelephone.com/blog/wp-content/uploads/2011/11/cropped-ait-iphone-logo-32x32.jpg switched network Archives - International Call Forwarding and Conferencing for Business & Personal Use https://aitelephone.com/blog/category/switched-network/ 32 32 Public Switched Telephone Network and the Origin of Telecom https://aitelephone.com/blog/public-switched-telephone-network/ Sun, 09 Sep 2018 18:50:42 +0000 https://www.aitelephone.com/blog/?p=4278 Origins of Telecom: The Public Switched Telephone Network A busy signal used in the North American PSTN prior to the 1980’s. The Public Switched Telephone Network came with the invention of the telephone in 1876 came the need for infrastructure. Early phone calls took place over a physical wire connecting the two devices. While this … Continue reading "Public Switched Telephone Network and the Origin of Telecom"

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