After so many chapters, I just thought to pen down all the abbreviations in one post which were used in last few chapters:
- FDMA: Frequency division multiple access
- CDMA: Code division multiple access
- TDMA: Time division multiple access
- NNS: Network Management Subsystem
- BSS: Base Station Subsystem
- NSS: Network Switching Subsystem
- BTS: Base transceiver stations
- BS: Base Station
- AUC: Authentication Centre
- OSS: Operation and Support System
- MXE: Message Center
- MISN: Mobile Intelligent Service Node
- MSC: Mobile Switching Centre
- HLR: Home location register
- AuC: Authentication centre
- VLR: Visitor location register
- EIR: Equipment Identity Register
- BC: Billing centre
- SMSC: Short message service centre
- MMSC: Multimedia messaging service centre
- VMS: Voicemail system
- BSC: Base Station Controller:
- PCU: Packet control unit
- MS : Mobile station (a mobile phone)
- PSTN: Public Switched Telephone Network
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