BSC
BSS
GSM
EIR
VLR
MS
BCF
AuC
MSC
NSS
HLR
BTS
OSS
Network Switching System
Equipment Identity Register
Global System for Mobile Communications
Home Location Register
Authentication Center
Base Trans Station
Operation and Support System
Mobile Station
Visitor Location Register
Base Control Functions
Mobile Switching Centre
Base Station Controller
Base Station Subsystem