Public switched telephone network

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

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Science and technology

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What Wikipedia says

The public switched telephone network (PSTN) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony.

Excerpt from the Wikipedia article “Public switched telephone network”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Mudares 22:13, 8 August 2007 (UTC), CC BY 2.5, via Wikimedia Commons.