Circuit Switched Data

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In communications, Circuit Switched Data (CSD) (also named GSM data) is the original form of data transmission developed for the time-division multiple access (TDMA)-based mobile phone systems like Global System for Mobile Communications (GSM).

Excerpt from the Wikipedia article “Circuit Switched Data”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Drahtlos, CC BY-SA 4.0, via Wikimedia Commons.