Find what the following terms stand for
ITU, UMTS, PCS, GSM, ISDN, PSTN, TDMA, FDMA, CDMA, AMPS,
CDPD, GPRS, EDGE in GSM, WAP, ISM band



Find what the following terms stand for ITU, UMTS, PCS, GSM, ISDN, PSTN, TDMA, FDMA, CDMA, AMPS, ..

Answer / guest

ITU ? International Telecommunication Union
UMTS ? Universal Mobile Telecommunication Service
PCS ? Personal Communications Services
GSM ? Global System for Mobile Communication
ISDN ? Integrated Services Digital Network
PSTN - Public Switched Telephone Network
TDMA ? Time Division Multiple Access
FDMA - Frequency Division Multiple Access
CDMA ? Code-Division Multiple Access
AMPS ? Advanced Mobile Phone Service
CDPD ? Cellular Digital Packet Data
GPRS ? General Packet Radio Services
EDGE ? Enhanced Data for GSM Evolution (or: Enhanced Data
GSM Environment)
WAP ? Wireless Application Protocol
ISM ? Industrial, Scientific, and Medical band

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