|Definition||:||Public Switched Telephone Network|
|Category||:||Technology » Communication|
What does PSTN mean?
The Public Switched Telephone Network (PSTN) is the the global interconnects of circuit-switched telephones networks. It consists of telephone lines, fiber optic cables, microwave transmission links, cellular networks, communications satellites, and undersea telephone cables, all inter-connected by switching centers, thus allowing any telephone in the world to communicate with any other.