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High-Speed Circuit-Switched Data (HSCSD)

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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).

Related glossary terms: PCS (personal communications service), wireless backhaul, home agent, foreign agent, DECT (Digital Enhanced Cordless Telecommunications), CDPD (Cellular Digital Packet Data), 802.11a, 802.11ac (Gigabit Wi-Fi), spread spectrum, Multichannel Multipoint Distribution Service (MMDS)

This was last updated in September 2005

Posted by: Margaret Rouse

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