MS: Mobile Station
MT: Mobile Terminal
TE: Terminal Equip
TA: Terminal Adapt
OSS: Operational Subsystem
NSS: Network and Switching Subsystem
BSS: Bass Station Subsystem
BTS: Base Transceiver System
BSC: Base Station Controller
MSC: Mobile Service Switching Center
OMC: Operations and Maintenance Center
HLR: Home Location Resister
VLR: Visitor Location Resister
EIR: Equipment Identity Register
AUC: Authentication Center
FCCH: Frequency Correction Channel
SCH: Synchronization Channel
BCCH: Broadcast Control Channel
CCCH: Common Control Channel
PCH: Paging Channel
RACH: Random Access Darnel
AGCH: Access Grant Channel