Landline

A landline^[a] is a physical telephone connection that uses metal wires or optical fiber from the subscriber's premises to the network. It is also referred to as plain old telephone service (POTS), twisted pair, telephone line, or public switched telephone network (PSTN).

Landline services are traditionally provided via an analogue copper wire to a telephone exchange. Landline service is usually distinguished from more modern forms of telephone services which use Internet Protocol based services over optical fiber (Fiber-to-the-x), or other broadband services (VDSL/Cable) using Voice over IP. However, sometimes modern fixed phone services delivered over a fixed internet connection are referred to as a "landline" (i.e., non-cellular service).^[1]

Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).