Landline
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A landline, or fixed line, is a telephone service provided to a subscriber via cable or wire, i.e. metal conductors or optical fiber. The term differentiates a telephone service from the now ubiquitou
A landline telephone device
Total landline vs. mobile phones in Africa (1998–2008)
Plain old telephone service
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Plain old telephone service, or rarely publicly offered telephone service, is a retronym for voice-grade telephone service that employs analog signal transmission over copper loops.
Landline
…metal conductors or optical fiber. The term differentiates a telephone service from the now ubiquitous wireless service. It is loosely described as plain old telephone service (POTS). Landline services are traditionally provided via the outside plant of a telephone company, consisting of analogue copper wire originating from…
In many countries, the post office originally operated telephony systems: hence ubiquitous "PO" markings on historical telephone infrastructure in many countries