Nokia 22 - Manual (Page 54)

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Abbreviations
Abbreviation Description
AAC Automatic Area Code
AC Alternating Current
CLI Calling Line Identification
DC Direct Current
DTMF Dual Tone Multi Frequency
EFR Enhanced Full Rate
ETSI European Telecommunications
Standards Institute
FSK Frequency Shifting Keying
FR Full Rate
GSM Global System Mobile
HR Half Rate
HSCSD High Speed Circuit Switched Data
IOF Intensity of Field
MO Mobile Originated
MT Mobile Terminated
PBX Private Branch Exchange
PC Personal Computer
PIN Personal Identification Number
PSTN Public Switched Telephone Network
PUK PIN Unblocking Key
SIM Subscriber Identity Module
SMS Short Message Service