Definition

High-Speed Circuit-Switched Data (HSCSD)

High-Speed Circuit-Switched Data (HSCSD) is circuit-switched wireless data transmission for mobile users at data rates up to 38.4 Kbps, four times faster than the standard data rates of the Global System for Mobile (GSM) communication standard in 1999. HSCSD is comparable to the speed of many computer modems that communicate with today's fixed telephone networks.

HSCSD is an evolutionary technology on the way to Universal Mobile Telecommunications Service (UMTS).

This was last updated in September 2005

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Higher speed from existing investments is a description of HSCSD from Ericsson.

African Cellular offers an illustrated GSM Data Speed Evolution to UMTS .

In the UK, Mike Pratt offers Links to GSM and UMTS Related Pages.

John Skourias's paper, "Overview of the Global System for Mobile Communications ," is recommended.

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