What is the PSTN?

The PSTN (Public Switched Telephone Network) was originally designed for voice communications only. Then the PSTN became the underpinning of text messages, video calls, and even the Internet. Using underground copper wires, this legacy platform has been a reliable means to communicate across generations.

Now, the original lines of communications that built the PSTN networks, known as POTS (Plain old telephone service) comprised of twisted copper wires are being replaced by fiber optic cables and data lines. What will happen to this vital network once POTS lines are fully phased out?

PSTN Telephone System Basics

To start, we need to look at the makeup of the PSTN. Comprised of a combination of networks that include POTS Lines as well as fiber optic cables, cellular networks, satellites, and cable systems, the PSTN facilitates communications across borders. To get from one point to the other, the Public Switched Telephone Network is made up of switches that function as nodes. After a call is placed, it is routed through several switches to reach the intended destination and transmit voice signals.*

Keep reading at: https://mixnetworks.com

Originally published at https://mixnetworks.com on October 6, 2022.