3. ABBREVIATIONS AND DEFINITIONS
16
LZ T 123 7 605 P1C
3. Abbreviations and Definitions
Abbreviation
Explanations
AMR
Adaptive Multi Rate
CBM
Cell Broadcast Message
CBS
Cell Broadcast Service
CSD
Circuit Switched Data
DCE
Data Circuit Terminating Equipment
DTE
Data Terminal Equipment
DTMF
Dual Tone Multi Frequency
EFR
Enhanced Full Rate
EMC
Electro-Magnetic Compatibility
ETSI
European Telecommunication Standards Institute
FR
Full Rate
GPRS
General Packet Radio Service
GSM
Global System for Mobile Communication
High Side
Switch
Pin is driven high, to Vin, in the active state
HR
Half Rate
HSCSD
High Speed Circuit Switched Data
ITU-T
International Telecommunication Union - Telecommunications
Standardisation Sector
Low Side
Switch
Pin is driven low in the active state. High state requires external pull up.
ME
Mobile Equipment
MO
Mobile Originated
MS
Mobile Station
MT
Mobile Terminated
PDU
Protocol Data Unit
RLP
Radio Link Protocol
RF
Radio Frequency
RTC
Real Time Clock
SIM
Subscriber Identity Module
SMS
Short Message Service