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A
AAA : Authentication Authorization and Accounting
AADP : Advanced Audio Distribution Profile
AAL : ATM Adaptation Layer
AAL5 : AAL Type 5
AAS : Adaptive Antenna System
ABC : Administration and Billing Center
AC : Access Channel
ACA : Adaptive Channel Allocation
ACF : Auto Correlation Function
ACI : Adjacent Channel Interface
ACK : Acknowledge
ACL : Asynchronous Connection-Less
ACM : Address Complete Message
ADM : Adaptive Delta Modulation
ADPCM : Adaptive Digital Pulse Code Modulation
ADSL : Asynchronous Digital Subscriber Line
AES : Advanced Encryption Standard
AFH : Adaptive Frequency Hoping
AG : Audio Gateway
AGCH : Access Grant Channel
AIF : Antenna Interface Frame
AIN : Advanced Intelligent Network
AK : Authentication Key
ALI : Alarm and Interface Module
AM : Amplitude Modulation
AMC : Adaptive Modulation and Coding
AMP : ATM Bidge Processor
AMPS : Advanced Mobile Phone System
AMPU : Average Margin per User
AMR : Adaptive Multi Rate
AMX : ATM Multiplexer
ANM : ANswer Message
ANSI : American National Standards Institute
APC : Adaptive Predictive Coding
APDU : Application Protocol Data Unit
API : Application Programming Interface
APN : Access Point Node
APS : Application Program System
ARDIS : Advanced Radio Data Information Systems
ARFCN : Absolute Radio Frequency Channel Number
ARC : Automatic Repeat Request
ARPU : Average Revenue Per User
ARQ : Access Retransmission reQuest
ASN : Access Service Network
ASN : ATM Switching Network
ASNF : ASN Module Type F
ASNG : ASN Module Type G
ASN-GW : Access Service Network Gateway
ASNH : ASN Module Type H
ATC : Adaptive Transform Coding
ATM : Asynchronous Transfer Mode
ATM230 : ATM Interface Asic with 200- and 30-Mbit Interface
AUC : Authentication Center
AUB : Access Unit Broadband
AVCTP : Audio/Video Control Transport Protocol
AVDTP : Audio/Video Distribution Transfer Protocol
AVRCP Audio/Video remote Control Channel
AWGN :

Additive White Gaussian Noise

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B
BAP : Base Processor
BEP : Bit Error Probability
BER : Bit Error Rate
BERSIM : Bit Error Rate Simulator
BCH : Broadcast Channel
BCCH : Broadcast Control Channel
BCSM : Basic Call State Model
BFSK : Binary Frequency Shift Keying
BHCA : Busy Hour Call Attempts
BICN : Bearer Independent Core Network
BISDN : Broadband Integrated Services Digital Network
BIU : Base Station Interface Unit
BNEP : Bluetooth Network Encapsulation Protocol
BOC : Bell Operating Company
BOP : Basic Operation
BPSK : Binary Phase Shift Keying
BRI : Basic Rate Interface
BS : Best effort Service
BSC : Base Station Controller
BSIC : Base Station Identity Code
BSN : Block Sequence Number
BSS : Base Station Subsystem
BSS : Basic Service Set
BSSAP : Base Station Subsystem Application Part
BSSGP : Base Station Subsystem GPRS Protocol
BSSMAP : Basic Station Subsystem Mobile Application Part
BT : 3 dB bandwidth-bit-duration product for GSMK
BTS : Base Transceiver Station
BVC : Base Station Virtual Connection

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C
CA : Certification Authority
CAI : Common Air Interface
CAMEL : Customized Applications for Mobile Enhanced Logic
CB : Citizens Band
CBR : Constant Bit Rate
CCCH : Common Control Channel
CCH : Control Channel
CCI : Co-Channel Interface
CCIR : Consultative Committee for International Radio-communications
CCITT : Consultative Committee fro International Telegraph and Telephone
CCK : Complementary Code Keying
CCS7 : Common Channel Signaling System No.7
CCS7E : Common Channel Signaling System No.7 Enhanced
CCTrCH : Code Composite Transport Channel
CD : Collision Detection
CDC : Central Data Collector
CDF : Cumulative Distribution Function
CDMA : Code Division Multiple Access
CDPD : Cellular Digital Packet Data
CDR : Call Detail Record
CDVCC : Coded Digital Verification Color Code
CE : Channel Element
CELP : Code Excited Linear Predictor
CEPT : Conference on European Posts and Telecommunication
CFP : Cordless Fixed Part
CGI : Cell Global Identity
CGU : Clock generator Unit
CHILL : CCITT High Level Language
C/I : Carrier-to-Interference Ratio
CI : Cell Identifier
CIC : Circuit Identification Code
C-ID : Charging Identifier
CIU : Cellular Controller Interface Unit
CLIP : Calling Line Identification Presentation
CLIR : Calling Line Identification Restriction
CLNP : Connectionless Protocol (Open System Interconnect)
CMA : Constant Modulus Algorithm
CMISE : Common Management Information Service Element
CNS : Comfort Noise Subsystem
CODEC : Coder/Decoder
CPE : Customer Premises Equipment
CPFSK : Continuous Phase Frequency Shift Keying
CPP : Cordless Portable Part
CQI : Channel Quality Index
CRC : Cyclic Redundancy Code
CS : Coding Scheme
CS : Convergence Sublayer
CSCF : Cell State Control Function
CSMA/CA : Carrier Sense Multiple Access/Collision Avoidance
CSMA/CD : Carrier Sense Multiple Access/Collision Detection
CT : Cordless Telephone
CT2 : Cordless Telephone-2
CTCH : Common Traffic Channel
CTS : Clear To Send
CU : Control Unit
CVSDM : Continuously Variable Slope Delta Modulation
CW : Continuous Wave

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D
DAM : Diagnostic Acceptability Measure
DAMPS : Digital AMPS
DBAS : Database Service Management System
DBMS : Database Management System
DBPSK : Differential Binary
DCA : Dynamic Channel Allocation
DCCH : Dedicated Control Channel
DCD : Downlink Channel Description
DCE : Data Circuit terminal Equipment
DCF : Distributed Coordination Function
DCS : Digital Communication System
DCS1800 : Digital Communication System-1800
DCT : Discrete Cosine Transform
DECT : Digital European Cordless Telephone
DEM : Digital Elevation Model
DES : Data Encryption Standard
DFE : Decision Feedback Equalization
DFT : Discrete Fourier Transform
DHCP : Dynamic Host Configuration Protocol
DLC : Data Link Control
DLCI : Data Link Connection Identifier
DLP : Direct Link Protocol
DM : Delta Modulation
DNS : Domain Name Server
DPCCH : Dedicated Physical Control Channel
DPCM : Differential Pulse Code Modulation
DPDCH : Dedicated Physical Data Channel
DQPSK : Differential Quadrature Phase Shift Keying
DRT : Diagnostic Rhyme Test
DS-CDMA : Discrete Sequence CDMA
DSAT : Digital Supervisory Audio Tone
DSDL : DBMS Specific Definition Language
DSE : Data Switching Exchange
DS/FHMA : Direct Sequence/Frequency Hopped Multiple Access
DSP : Digital Signal Processing
DS-SS : Direct Sequence Spread Spectrum
DST : Digital Signaling Tone
DTAP : Direct Transfer Application Part
DTCH : Digital Traffic Channel
DTCH : Dedicated Traffic Channel
DTE : Data terminal Equipment
DTM : Dual Transfer Mode
DTMF : Dual tone Multiple Frequency
DTX : Discontinuous Transmission Mode
DUN : Dial Up Network
DUP : Data User Part

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E
Eb/No : Bit Energy-to-Noise Density
ECC : Echo Cancellation Circuit
EDCH : Enhanced Dedicated Channel
EDGE : Enhanced Data Rates for GSM Evolution
EDR : Enhanced Data Rate
EFD : Event Forwarding Discriminator
EIA : Electronic Industry Association
EIR : Equipment Identity Register
EIRP : Effective Isotropic Radiated Power
EMLPP : Enhanced Multi Level Precedence and Preemption
EOC : Embedded Operations Channel
EPC : External Processor Register
erf : Error Function
erfc : Error Function Complementary
ERMES : European Radio Message System
E-SMR : Extended-Specialized Mobile Radio
ESN : Electronic Serial Number
ESS : Extended Service Set
E-TACS : Extended Total Access Communication System
ETSI : European Telecommunications Standard Institute
EWSD : Elektronisches Wahl System Digital
EWSX : EWSXpress

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F
FACCH : Fast Associated Control Channel
FAF : Floor Attenuation Factor
FBF : Feed Back Filter
FBSS : Fast Base Station Switching
FC : Fast Channel
FCC : Federal Communication Commission, Inc.
FCC : Forward Control Channel
FCCH : Frequency Correction Channel
FCDMA : Hybrid FDMA/CDMA
FCH : Frame Control Header
FDD : Frequency Division Duplex
FDMA : Frequency Division Multiple Access
FDTC : Forward Data Traffic Channel
FEC : Forward Error Correction
FER : Frame Error Rate
FFF : Feed Forward Filter
FFSR : Feed Forward Single Renegeration
FH : Frequency Hopping
FHMA : Frequency Hopped Multiple Access
FHS : Frequency Hoping Synchronization
FHSS : Frequency Hopped Spread Spectrum
FLEX : FSK 4 level yang didasarkan pada standar “paging”, dikembangkan oleh Motorola
FM : Frequency Modulation
FN : Frame Number
FOM : Figure Of Merit
FP : Frame Relay Processor
FPSM : Frame Relay Processor Shared Memory
FPLMTS : Future Public Land Mobile Telecommunication System
FSE : Fractionally Spaced equalizer
FSK : Frequency Shift Keying
FTDMA : Frequency and Time Division Multiple Access
FTF : Fast Transversal Filter
FTP : File Transfer Protocol
FVC : Forward Voice Channel

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G
Ga interface : Interface antara GSN (SGSN dan GGSN) dan Charging Gateway Function
Gb interface : Interface antara BSC dan SGSN
Gc interface : Interface antara HLR dan GGSN
Gd interface : Inetrface anatar SMSC dan SGSN
GDB : GPRS Database
GDMO : Guidelines for Definition of Mananged Objects
GERAN : GSM-EDGE Radio Access Network
GFSK : Gaussian Frequency Shift Keying
GGSN : Gateway GPRS Support Node
Gi interface ` : Inetrface antara GGSN dengan Packet Data Network / internet
GIF : Graphic Interchange Format
GIS : Geographical Information System
GIU : Gateway Interface Unit
GMM : GPRS Mobility Management
GMM-AF : GMM Application Function
GMM-TF : GMM Transport Function
GMM/SM : GPRS Mobility Management and Session Management
GMSC : Gateway MSC
GMSK : Gaussian Minimum Shift keying
Gn interface Interface antara SGSN dan GGSN atau antara SGSN dengan SGSN
GOAM : GPRS Operation and Maintenance Applications
GOEP : General Object Exchange Profile
GOS : Grade Of Services
GPRS : General Packet Radio System
GR : GPRS Release
Gr interface : Interface antara HLR dan SGSN
Gs interface Interface antara MSC dan SGSN
GSC : Golay Sequential Coding
GSM : Group Speciale Mobile
GSM : Global System for Mobile communication
GSM-MAP : GSM Mobile Application Part
GSN : GPRS Support Node
GTP : GPRS Tunneling Protocol

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H
HA : Home Agent
HARQ : Hybrid Automatic Response reQuest
HCI : Host Controller Interface
HDB : Home Database
HDR : High Data Rate
HEC : Header Error Check
HLR : Home Location Register
HPLM : Home PLMN
HSCSD : High Speed Circuit Switched Data
HSDPA : High Speed Downlink Packet Access
HS-DSCH : High Speed Downlink Shared Channel
HSPA : High Speed Packet Access
HSS : Home Subscriber Server
HSUPA : High Speed Uplink Packet Access
HTML : Hyper Text Markup Language
HTTP : Hyper Text Transfer Protocol

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I
IAM : Initial Address Message
IAPP : Inter Access Point Protocol
ICA : IDS Communication via ATM
IDCT : Inverse Discrete Cosine Transform
IDEN : Integrated Dispatch Enhanced Network
IDFT : Inverse Discrete Fourier Transform
IDS : Interactive Debugging System
IE : Information Element
IEEE : Institute of Electrical and Electronics Engineers
IF : Intermediate Frequency
IFFT : Inverse Fast Fourier Transform
IGA : Improved Gaussian Approximation
IIR : Infinite Impulse Response
IM : InterModulation
IMEI : International Mobile Equipment Identity
IMS : IP Multimedia Subsystem
IMSI : International Mobile Subscriber Identity
IMT-2000 : International Mobile Telecommunication-2000
IN : Intelligent Network
INT_CID : Internal Change ID
INT_CID : Internal Charging ID
IOC : Input Output Controller
IP : Internet Protocol
IRAU : Inter SGSN Routing Area Update
IS : Interim Standard (IS-54=AMPS, IS-95=CDMA, IS-136=Digital AMPS)
ISDN : Integrated System Digital Network
ISI : InterSymbol Interference
ISM : Industrial, Scientific, and Medical
ISUP : ISDN User Part
ITFS : International Television Fixed Service
ITU : International Telecommunication Union
Iu-CS interface : Interface antara RNC dengan MSC
Iu-PS interface : Interface antara RNC dengan SGSN
IUA : ISDN User Adaptation layer“
Iub interface : Interface antara Node-B dengan RNC
Iur interface : Interface antara RNC dengan RNC
IXC : IntereXhange Carrier
IWE : InterWorking Entity

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J
JDC : Japanese Digital Cellular (Kemudian dikenal dengan PDC = Pacific Digital Cellular)
JRC : Joint Radio Committee
JTACS : Japanese total Access Communication System
JTC : Joint Technical Committee

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K
KEK : Key Encryption Key

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L
LA : Location Area
LAC : Location Area Code
LAN : Local Area Network
LAP : LAN Access Profile
LATA : Local Access and Transport Area
LBT : Listen Before Talk
LCC : Lost Call Cleared
LCD : Lost Call Delayed
LCR : Level Crossing Rate
LDC : Local Data Controller
LEC : Local Exchange Carrier
LEO : Low Earth Orbit
LIC : Line Interface Card
LLC : Logical Link Control
LLCAP : Logical Link Control and Adaptation Protocol
LLE : Logical Link Equipment
LM : Layer Management
LMS : Least Mean Square
LMP : Link Manager Protocol
LOC-NO : Location Number
LOS : Line Of Sight
LPC : Linear Predictive Coding
LPS : LIC Protection Switch
LSSB : Lower Single Side Band
LTE : Linear Transversal Equalizer
LTE : Long Term Evolution
LTP : Long Term Prediction

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M
M3UA : Message Transfer Part3 User Adaptation Layer
MAC : Medium Access Control
MAHO : Mobile Assisted Handover
MAN : Metropolitan Area Network
MAP : Mobile Application Part
MBC : Message Based Communication
MBS : Maximum Burst Size
MCC : Mobile Country Code
MDBS : Mobile Database Station
MDHO : Macro Diversity HandOver
MDLP : Mobile Data Link Protocol
MDS : Multipoint Distribution Services
MFSK : Minimum Frequency Shift Keying
MG : Media Gateway
MGC : Media Gateway Controller
MGCF : Media Gateway Control Function
MGCP : Media Gateway Control Protocol
MIME : Multipart Internet Mail Extension
MIMO : Multiple Input Multiple Output
MIN : Mobile Identification Number
MIRS : Motorola Integrated Radio system
MM : Mobility Management
MMAC : Multimedia Mobile Access Communication
MMS : Multimedia Messaging Service
MMDS : Multichannel Multipoint Distribution Service
MMSE : Minimum Mean Square Error
MNC : Mobile Network Code
MPLS : Multi Protocol Label Switching
MPSK : Minimum Phase Shift Keying
MRF : Multimedia Resource Function
MS : Mobile Station
MSA : Metropolitan Statistical Area
MSB : Most Significant Bit
MSC : Mobile Switching Center
MSCID : MSC Identification
MSE : Mean Square Error
MSIN : Mobile Subscriber Identification Number
MSK : Minimum Shift Keying
MSRN : Mobile Station Roaming Number
MSU : Message Signaling Unit
MTP : Message Transfer Part
MTP3b : layer 3 broadband Message Transfer Part
MTSO : Mobile Telephone Switching` Office
MUX : Multiplexer

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N
NACC : Network Assisted Cell Change
NACK : Negative Acknowledge
NAMPS : Narrowband AMPS
NAP : Network Access Point
NAV : Network Allocation Vector
NBFM : Narrow Band Frequency Modulation
NC : Network Commander
N-ISDN : Narrowband ISDN
NLOS : Non-Line of Sight
NMT-450 : Nordic Mobile Telephone-450
NNI : Node Network Interface
NOM : Network Operation Mode
N-PDU : Network PDU
NrtPS : Non-Real Time Polling Service
NRZ : Non Return to Zero
NSAPI : Network Service Access Point Identifier
NSP : Network Service Part
NSS : Network and Switching Subsystem
NS-VC : Network Service - Virtual Connection
NS-VL : Network Service - Virtual Link
NTACS : Narrowband Total Access Communication System
NTT : Nippon Telephone

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O
OCS : Originating Call Screening
OFDM : Orthogonal Frequency Division Multiplexing
OFDMA : Orthogonal Frequency Division Multiple Access
OA&M : Operation, Administration and Maintenance
O&M : Operation and Maintenance
OMA : Open Mobile Alliance
OMAP :

Operation Maintenance and Administration Part
OMC : Operation and Maintenance Center
OMC-B : OMC for Base Station Sub-system
OMC-S : OMC for Switching Sub-System
OQPSK : Offset Quadrature Phase Shift Keying
OSI : Open System Interconnect
OSS : Operation Support System
OVSF : Orthogonal Variable Spreading Factor

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P
PABX : Private Automatic Branch Exchange
PACCH : Packet Associated Control CHannel
PACS : Personal Access Communication System
PAD : Packet Assembler Disassembler
PAGCH : Packet Access Grant CHannel
PAN : Personal Area Network
PBX : Private Branch Exchange
PCCCH : Packet Common Control CHannel
PCH : Paging Channel
PCM : Pulse Code Modulation
PCN : Personal Communication Network
PCP : Peripheral Control Platform
PCR : Peak Cell Rate
PCS : Personal Communication System
PCU : Packet Control Unit
PD : Packet Dispatcher
PDC : Pacific Digital Cellular
PDET : Project Database Engineering Team
pdf : probability density function
PDN : Packet data Network
PDP : Packet Data Protocol
PDTCH : Packet Data Traffic CHannel
PDU : Packet Data Unit
PG : Processing Gain
PH : Portable Handset
PHP : Personal Handy Phone
PHS : Personal Handy phone System
PHS : Packet Header Suppression
PL : Path Loss
PLCP : Physical Layer Convergence Procedure
PLL : Phase Locked Loop
PLMN : Public Land Mobile Network
PLMR : Public Land Mobile Radio
PM : Performance Management
PN : Pseudo Noise
POCSAG : Post Office Code Standard Advisory Group
PPCH : Packet Paging CHannel
PPP : Point to Point Protocol
PR : Packet Radio
PRACH : Packet Random Access CHannel
PRH : PRotocol Handler
PRH-MGR : PRotocol Handler ManaGeR
PRI : Primary Rate Interface
PRMA : Packet Reservation Multiple Access
PRT : Packet Routing and Transfer function
PSD : Power Spectral Density
PSK : Phase Shift Keying
PSM : Protocol Service Multiplexer
PSTN : Public Switch Telephone Network
PSU : Power Supply Unit
PTCCH : Packet Timing Advance Control CHannel
PTI : Permanent Terminal Identifier
P-TMSI : Packet Temporary Mobile Subscriber Identity
PTT : Push to Talk
PVC : Permanent Virtual Connection

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Q
Q3 : Q interface at the GSN Node
QAM : Quadrature Amplitude Modulation
QCELP : Qualcomm Code Excited Linear Predictive Coder
QMF : Quadrature Mirror Filter
QoS : Quality of Service
QPSK : Quadrature Phase Shift Keying

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R
RA : Routing Area
RAB : Radio Access Bearer
RAC : Routing Area Code
RACE : Research on Advanced Communication in Europe
RACH : Random Access Channel
RADIUS : Remote Authentication Dial-In Server
RAI : Routing Area Identity
RANAP : Radio Access Network Application Part
RAU : Routing Area Update
RCC : Reverse Control Channel
RCS : Radar Cross Section
RDLAP : Radio Data Link Access Procedure
RDTC : Reverse Data Traffic Channel
RELP : Residual Excited Linear Predictor
RF : Radio Frequency
RFP : Radio Fixed Part
RLC : Resistor Inductor Capacitor
RLC : Radio Link Control
RMD : RAM Mobile Data
RNC : Radio Network Control
RNSAP : Radio Network Subsystem Application Part
RPC : Remote Procedure Call
RPCU : Radio Port Control Unit
RRC : Radio Resource Control
RRMS : Radio Resource Management Protocol
RSS : Radio Sub-System
RSSI : Received Signal Strength Indicator
RTD : Round-Trip Delay
RTG : Receive/Transmit Transition Gap
RtPS : Real time Polling Service
RTS : Ready To Send
RVC : Reverse Voice Channel
Rx : Receiver
RZ :

Return to Zero

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S
SAAL : Signaling ATM Adaptation Layer
SACCH : Slow Associated Control Channel
SAFER+ : Slow And Fast Encryption Routine
SAP : Service Access Point
SAPI : Service Access Point Identifier
SAR : Service Access Routines
SAT : Supervisory Audio Tone
SBC : System Broadcasting Channel
SBC : Sub-Band Channel
SC : Slow Channel
SCB : SSNC Control shelf Basic
SCCP : Signaling Connection Control Part
SCE : SCB-Extended
SCH : Synchronization Channel
SCM : Station Class Mark
SCO : Synchronous Connection Oriented
SCORE : Spectral Coherence Restore Algorithm
SCP : Service Control Point
SCR : Substainable Cell Bitrate
SCR : Successful Call Ratio
SDCCH : Stand-alone Dedicated Control Channel
SDMA : Space Division Multiple Access
SDP : Service Delivery Protocol
SDRT : Symptom Data Transport
SEIGA : Simplified Expression for the Improved Gausian Approximation
SELP : Stochastically Excited Linear Predictive coder
SEP : Switching End Point
SGSN : Serving GPRS Support Node
S/I : Signal to Interference ratio
SIB : System Information Block
SID : Station Identity
SIFS : Short Inter Frame Space
SIM : Subscriber Identity Module
SIP : Session Initiation Protocol
SIR : Signal-to-Interference Ratio
SIRCIM : Simulation of Indoor Radio Channel Impulse Response Module
SISP : Site Specific Propagation
SLR : SGSN Location Register
SM : Session Management
SM : Signaling Management
SMIL : Synchronized Multimedia Integration Language
SMP : Standard Maintenance Protocol
SMP : Service Management Point
SMR : Specialized Mobile Radio
SMRCIM : Simulation of Mobile Radio Channel Impulse Response Models
SMS : Short Messaging Service
SMSC : Short Messaging Service Center
SMTP : Simple Mail Transfer Protocol
S/N : Signal to Noise ratio
SNDCP : Sub-network Dependent Convergence Protocol
SNMP : Simple Network Management Protocol
SNR : Signal to Noise Ratio
SP : Signaling Point
SPP : Serial Port Profile
SPU : Service Provision Unit
SQNR : Signal to Quantization Noise Ratio
SRNS : Serving Radio Network Subsystem
SS : Spread Spectrum
SSB : Signaling Side Band
SSL : Secure Socket Layer
SSMA : Spread Spectrum Multiple Access
SSN : Sub-System Number
SSNC : Signaling System Network Control
SSP : Service Switching Point
SST : Sub System Test
SS7 : Signaling System No.7
ST : Signaling Tone
STM-1 : Synchronous Transport Module level-1
STP : Signaling Transfer Point
SYN : Synchronization Channel
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T
TACS : Total Access Communication System
TBF : Temporary Block Flow
TCAP : Transaction Capabilities Application Part
TCDMA : Time Division CDMA
TCH : Traffic Channel
TCM : Trellis Code Modulation
TCP : Transmission Control Protocol
TDD : Time Division Duplex
TDFH : Time Division Frequency Hopping
TDMA : Time Division Multiple Access
TDN : Temporary Directory Number
TDR : Time Dependent Routing
TDR : Transaction Detail Record
TEK : Traffic Encryption Key
TFI : Temporary Flow Identity
TFS : Transport Format Set
TFTP : Trivial File Transfer Protocol
TIA : Telecommunications Industry Association
TID : Tunnel Identifier
TIU : Trunk Interface Unit
TIM : Traffic Indication Map
TLLI : Temporary Logical Link Identifier
TLM : Trunk Line Management
TM : Traffic Measurement
TMN : Telecommunication Management Network
TMSI : Temporary Mobile Subscriber Identity
TODE : Total Outage DEtection
TPL : Thruput Limiter
TRAU : Transcoding and Rate Adaptation Unit
TSC : Through Switched Connection
TTG : Transmit/receive Transition Gap
TTI : Transmission Time Interval
TTIB : Transparent Tone-In-Band
TUP : Telephone user part
Tx : Transmitter

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U
UART : Universal Asynchronous Receiver an Trasmitter
UDP : User Datagram Protocol
UE : Universal Equipement
UF : Urban Factor
UGS : Unsolicited Grant Service
UMTS :

Universal Mobile Telecommunication System
UNI : User Network Interface
URL : Universal Resource Locator
USB : Universal Serial Bus
USF : Uplink State Flag
USO : Universal Service Obligation
USSB : Upper Single Side Band
USSD : Unstructured Supplementary Service Data
UTRAN : UMTS Terrestrial Radio Access Network
UUID :

Universal Unique ID

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V
VAD : Voice Activity Detector
VBR : Variable Bit Rate
VBS : Voice Broadband Service
VC : Virtual Connection
VCI : Virtual Circuit Identifier
VCO : Voltage Control Oscillator
VDB : Visitor Database
VGCS : Voice Group Call Service
VGGSN : Virtual GGSN
VIU : Visitor Interface Unit
VLR : Visitor Location Register
VMAC : Voice Mail Attenuation Code
VOCOC : Vision O.N.E. Shill Operation System
VoIP : Voice Over Internet Protocol
VP : Virtual Path
VQ : Vector Quantization
VSAT : Very Small Aperture Terminal
VSELP : Vector Sum Exciter Linear Predictor

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W
WACS : Wireless Access Communication System [kemudian dikenal dengan PACS]
WAN :

Wireless Area Network
WAP : Wireless Application Protocol
WARC : World Administrative Radio Conference
WBMP : Wireless application BitMap Protocol
WCDMA : Wideband Code Division Multiple Access
WEP : Wired Equipment Privacy
Wi-Fi : Wireless Fidelity
WiMAX : Worldwide Interoperability for Microwave Access
WIN : Wireless Information Network
WIU : Wireless Interface Unit
WLAN : Wireless Local Area Network
WML : Wireless Markup Language
WPA : Wireless Protected Access
WSP : Wireless Session Protocol
WTP : Wireless Transaction Protocol
WUPE : Wireless User Premises Equipment
WWW : World Wide Web

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Selamat Menjalankan Ibadah Puasa Ramadhan !