What does Plain Old Telephone Service (POTS) rely on?

Plain Old Telephone Service (POTS) relies on a wired telecommunications system. This traditional telephone service utilizes analog signal transmission over copper wires to establish a connection between the caller and the recipient. POTS operates effectively through a network of switching stations that route calls using circuit-switched technology, which ensures a dedicated line is established for the duration of a call.

The reliance on physical wiring is foundational to how POTS operates, making it distinct from other technologies like digital transmission protocols or fiber-optic networks. While these modern advancements provide faster and more efficient communication methods, POTS is primarily recognized for its simplicity and reliability in long-established telephone infrastructure, especially in areas with limited access to newer technologies.