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A3
Authentication Algorithm
A5
Ciphering Algorithm
A8
Ciphering Key Generating Algorithm
ADMF
Administrative Function
AKA
Authentication and Key Agreement
AN
Access Network
AoC
Advice of Charge
AUC
Authentication Center
BSC
Base Station Controller
BSS
Base Station System
BSSAP
Base Station Subsystem Application Part
BTS
Base Tranceiver Station
CAMEL
Customized Application for Mobile Enhanced Logic
CBC
Cipher Block Chaining
CC
Content of Communication
CCBS
Customer Care and Billing System
CDMA
CDMA Division Multiple Access
CDR
Call Data Record
CEIR
Central Equipment Identity Register
CEPT
European Conference of Post and Telecommunication Administrations
CFB
Cipher Feedback
CGI
Cell Global Identity
CKSN
Cipher Key Sequence Number
CMEA
Cellular Message Encryption Algorithm
CUG
Closed User Group
DES
Data Encryption Standard
DFU Mode
DFU mode is a state that you can put your iPhone into where it can interface with iTunes but does not load the iPhone operating system or boot loader (this is what really differs DFU mode from recovery mode). DFU stands for Device Firmware Update.
DFU mode is not recovery mode. Recovery mode has a picture that says connect to iTunes. In DFU mode, the iPhone screen backlight is not even on and the display is blank. If you have anything on your display you are not in DFU mode
DIMSI
Dual International Mobile Subscriber Identity
DSA
Digital Signature Algorithm
ECB
Electronic Code Book
EDGE
Enhanced Data GSM Environment
EIR
Equipment Identity Register
EMS
Enhanced Messaging Service
ETSI
European Telecommunications Standards Institute
GERAN
GSM EDGE Radio Access Network
GIWU
GSM Interworking Unit
GMSC
Gateway Mobile Services Switching Center
GMSK
Gaussian Minimum Shift Keying
GPRS
General Packet Radio System
GSM
Global System for Mobile communication, (which originally stood for Groupe Spécial Mobile)
GTT
Global Title Translation
HCSD
High-Speed Circuit-Switched Data
HE
Home Environment
HLR
Home Location Register
IMEI
International Mobile Equipment Identity. An IMEI number is to identify GSM, WCDMA, and iDEN mobile phones, as well as some satellite phones. It is usually found printed inside the battery compartment of the phone. It can also be displayed on the screen of the phone by entering *#06# into the keypad on most phones.
IMSI
International Mobile Subscriber Identity
IN
Intelligent Network
INAP
Intelligent Network Application Part
IRI
Intercept Related Information
Kc
Ciphering Key
Ki
Individual Subscriber Authentication Key
LAI
Location Area Identity
LFSR
Linear Feedback Shift Register
LPC
Linear Predictive Coding
MAP
Mobile Application Part
MExE
Mobile Execution Environment
MML
Man-Machine Language
MMS
Mobile Multimedia Services
MNC
Mobile Network Code
MS
Mobile Station
MSC
Mobile Services Switching Center
MSE
Mobile Station Equipment
MSISDN
Mobile Subscriber ISDN
MSN
Mobile Service Node
MSNI
Mobile Subscriber Identity Number
MSRN
Mobile Station Roaming Number
MTP
Message Transfer Part
MXE
Message Center
NSS
Network and Switching Subsystem
OMC
Operations and Maintenance Center
OSS
Operation and Support System
OTA
Over The Air
PCS
Personal Communications Service
PDP
Packet Data Protocol
PKCS
Public Key Cryptography System
PLMN
Public Land Mobile Network
PSTN
Public Switched Telephone Network
RFM
Remote Files Management
SCI
Subscriber Controlled Input
SHA
Secure Hash Algorithm
SIM
A subscriber identity module or subscriber identification module Subscriber Identification Module - (SIM) is an integrated circuit that securely stores the service-subscriber key (IMSI) used to identify a subscriber on mobile telephony devices (such as mobile phones and computers).
A SIM is held on a removable SIM card, which can be transferred between different mobile devices. SIM cards were first made the same size as a credit card (85.60 mm × 53.98 mm × 0.76 mm). The development of physically smaller mobile devices prompted the development of a smaller SIM card, the mini-SIM card. Mini-SIM cards have the same thickness as full-size cards, but their length and width are reduced to 25 mm × 15 mm. The came micro SIM cards with a size of 15mm x 12mm.
A SIM card contains its unique serial number (ICCID), internationally unique number of the mobile user (IMSI), security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to and two passwords (PIN for usual use and PUK for unlocking).
SMS
Short Message Service
SMSC
Short Message Service Center
SN
Serving Network
SRES
Signed Response
SS
Switching System
SS7
Signaling System 7
TCAP
Transaction Capabilities Application Part
TDMA
Time Division Multiple Access
TMSI
Temporary Mobile Subscriber Identity
UMTS
Universal Mobile Telecommunications Service
USIM
User Services Identity Module
VLR
Visitor Location Register
VMS
Voice Mail Service / Voice Messaging Service
WAP
Wireless Application Protocol
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