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A-B
ACL Asynchronous ConnectionLess
ADM Add/Drop Multiplexer
ADSL Asymmetric Digital Subscriber Line
APON/FTTH ATM Passive Optical Network/Fiber To The Home
ARIMA Auto Regression Integrated Moving Average
ARMA Auto Regression Moving Average
BAS Broadband Access Server
BW Bandwidth
BWA Broadband Wireless Access
C-D
CAPEX Capital Expenditure
CATV Cable Television
CATV/HFC Cable Television/Hybrid Fiber Coax
CBR Constant Bit Rate
COOP Cost of Ownership
CSS Customer Support System
CxC Cross Connect
DCN Data Communication Network
DLC Digital Loop Carrier
DSLAM Digital Subscriber Line Access Multiplexer
DWDM Dense Wavelength Division Multiplexing
E-F
EVA Economic Value Added
FO Fiber Optics
FTTU Fiber To The Unit
G-H
GMPLS Generalized Multi-Protocol Label Switching
GPRS General Packet Radio service
GW Gateway
HC Hose Controller
HCI Host Controller Interface
HDSL High bit rate Digital Subscriber Line
HFC Hybrid Fiber Coax
I-J
IN Intelligent Network
IPTC Internet Protocol Telephony solutions Carriers
IRR Internal rate of return
ISDN Integrated Services Digital Network
ISUP Integrated Services Digital Network User Part
ITC International Teletraffic Congress
K-L
LEX + CP Local Exchange + Connection Point
LEX Local Exchange
LL Local Loop
LLU Local Loop Unbundling
LM Link Manager
LMDS Local Multipoint Distribution System
M-N
MGW Media gateway
MM Multimedia
MNC Managed Network Communication
MPBN Mobile Packet Backbone Network
MPLS Multi-Protocol Label Switching
MSS Mobile Satellite Service
MSU Message Signaling Unit
MTBF Mean Time Between Failures
MTP Message Transfer Part
MTTR Mean Time To Repair
NAS Network Access Server
NE Network Element
NGN New Generation Network
NM Network management
NPV Net present value
NWA Network Wireless Access
O-P
OPEX Operational Expenditure
OSI Open System Interconnections
OSS Operation Support System
PDA Personal Digital Assistant
PCR Peak Cell Rate
PMP Point to Multi-Point
POP Point of Presence
POTS Plain Old Telephone Service
PTO Public Telephone Operator
PtP Point to Point
PTS Public Telecommunications Systems
Q-R
QoS Quality of Service
RNO Radio Network Operation
RNP Radio Network Planning
ROCE Return on Earnings
RSC Remote Switching Center
RST Remote Switching Telephone
RSU Remote Service Unit
S-T
SBR Sustainable Cell rate
SCOOP Switching Communication Observation Processin
SCR Sustainable Cell rate
SCO Synchronous Connection-Oriented
SDH Synchronous Digital Hierarchy
SDSL Symmetrical Digital Subscriber Line
SIGTRAN SS7 over IP
SLA Service Level Agreement
SME Small Medium Enterprises
SMS-C Short Message Service Center
SOHO Small Office Home Office
SP Signaling Point
SS Signaling System
STEM Strategic Telecommunication Evaluation Model
STM Synchronous Transfer mode
STM-4 Synchronous Transfer Module “4”
STM-n Synchronous Transfer module “rate n”
STP Signaling Transfer Point
TEX Transit Exchange
TGW Trunk Group Warning
TMN Telecommunications Management Network
TSP Trunk Sizing Package
U-V
UART Universal Asynchronous Receiver / Transmitter
USB Universal Serial Bus
VC-12 Virtual Channel/Virtual Container
VC-4 Virtual Channel/Virtual Container
W-X
WDM Wavelength Division Multiplexing
WIP Wireless Internet Protocol
WL Wireline
WLAN Wireless Local Area Network
WLL Wireless Local Loop
WNT Wireless Network Terminal
xBS Base Station
xDSL Generic Digital Subscriber Line
Y-Z


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