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 July 2000
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