0-9
1GL
3GPP
4GL
5GL
First-Generation Language
3rd Generation Partnership Project
Fourth-Generation Language
Fifth-Generation Language
A
A
AAA
AAL
AAR
AAV
ABB
Abis
ABM
ABR
AC
ACA
ACD
ACK
ACL
ACS
ACS
ACTS
ADC
ADCCP
ADI
ADM
ADM
ADPCM
ADSI
ADSL
ADT
AFC
AGC
AGCH
AHP
AIMN
AIN
AIOD
ALASCOM
ALJ
ALT
ALU
AM
AM
AMA
AMI
AMI
AMIS
AMPS
AMPS
AMR
AMSC
ANI
ANSI
[(interface BSS-MSC (GSM)]
Authentication, Authorization and Accounting (IETF)
ATM Adaptation Layer (protocolli di incapsulamento dati)
Automatic Alternate Routing
Alternative Access Vendor
Application Building Block
[interface BTS-BSC (GSM)]
Asynchronous Balanced Mode
Available Bit Rate
Authentication Centre (GSM)
Adaptive Channel Allocation (MAC)
Automatic Call Distribution
ACKnowledgement
Agent Command Language
Asian Cellular Satellite
ATM Circuit Steering
Advanced Communication Technologies and Services
Analog-to-Digital Converter
Advanced Data Communications Control Procedure
Area of Dominant Influence
Adaptive Delta Modulation
Add-Drop Multiplexing (SDH)
Adaptive Differential Pulse-Code Modulation
Analogue Display Services Interface
Asymmetric Digital Subscriber Line
Admission, Discharge, and Transfer
Automatic Frequency Control
Automatic Gain Control
Access Grant CHannel (GSM)
Analytic Hierarchy Process
Advanced Intelligent Mobile Network
Advanced Intelligent Network
Automatically Identifying Outward Dialing
ALASkan COMmunications satellite corporation
Administrative Law Judge
Alternative Local Transport
Arithmetic-Logic Unit
Access Manager
Amplitude Modulation
Automatic Message Accounting
Alternate Mark Inversion
Alterned Mark Inversion
Audio Messaging Interchange Specification
Advanced Mobile Phone Service (USA)
Advanced Mobile Phone System
Adaptive MultiRate
American Mobile Satellite Corporation
Automatic Number Identification
American National Standards Institute
AOA
AOS
AP
APCM
API
APMS
APPC
APSI
ARABSAT
ARDIS
ARFA
ARM
ARP
ARPAnet
ARQ
ARS
ARTEMIS
ASC
ASCII
ASIC
ASK
ASN.1
AT&T
ATB
ATM
ATM
AUG
AUI
AVI
AVJ
AVK
AVSS
AVT
AWA
AWG
AWGN
Angle Of Arrival
Alternate Operator Service
Access Port
Adaptive Pulse Code Modulation
Application Programming Interface
Asian Pacific Mobile Satellite
Advanced Peer-to-Peer Communications
Alliance to Promote Software Innovation
Arabian Satellite Consortium
Advanced Radio Data Information Service
Assisted Receive Frame Acquisition
Asynchronous Response Mode
Address Resolution Protocol
Advanced Research Projects Agency Network
Automatic Retransmission on reQuest
Automatic Route Selection
Advanced Research Testbed for Medical Informatics
Afro-Asian Satellite Communications
American Standard Code for Information Interchange
Application-Specific Integrated Circuit
Amplitude Shift Keying
Abstract Syntax Notation One
American Telephone and Telegraph Corporation
All Trunks Busy
Asynchronous Transfer Mode
Automated Teller Machine
Administrative Unit Group (SDH)
Attachment Unit Interface (ethernet)
Audio Video Interlaced
Adaptive Virtual Junction
Audio Video Kernel
Audio/Video SubSystem
Audio-Video Transport (IETF)
Advanced Wireless Access
American Wire Gauge
Additive White Gaussian Noise
B
B8ZS
BAN
BBS
BBVDT
BCC
BCCH
BCN
BCSM
BER
BETRS
BEXR
BGP
BGT
BHCC
BICI
BISDN
B-ISUP
BL
BLER
BMI
BMS
BMS
BNC
Binary 8 Zero Substitution
Building Area Network
Bulletin Board System
Broadband Video Dial Tone
Block Check Character
Broadcast Control Channel (GSM)
Broadcast Channel Number
Basic Call State Model
Bit Error Rate
Basic Exchange Telecommunications Radio Service
Basic EXchange Radio
Border Gateway Protocol
Broadcast and Group Translators
Busy-Hour Call Completions
Broadband Inter Carrier Interface (Public NNI - ATM)
Broadband Integrated Services Digital Network
Broadband ISDN User Part
Burst Length
BLock Error Rate
Broadcast Music, Inc.
Broadcast Message Server
Business Management System
Bayonet Naval Connector
BNR
BOC
BOOM2
BOT
BPF
bps
BPSK
BRI
BS
BSC
BSC
BSC
BSI
Bsnet
BSS
BSS
BT
BTA
BTI
BTS
BUS
Bell Northern Research
Bell Operating Company
Binocular Omni-Orientational Monitor
Build, Operate, Transfer
Band Pass Filter
Bits per Second
Binary Phase Shift Keying
Basic Rate Interface (ISDN)
Base Station
Base Station Controller (GSM)
Binary Simmetric Channel
Binary Synchronous Communication
British Standards Institution
Broadcasting Networks
Base Station Subsystem (GSM)
Broadcast Satellite Service
British Telecom
Basic Trading Area
British Telecom International
Base Transceiver Station (GSM)
Broadcast and Unknown Server (ATM)
C
C&C
CAD/CAM
CAE
CAI
CAM
CANARIE
Education
CAP
CAP
CASE
CATV
CBR
CBS
CBX
CCF
CCIR
CCIS
CCITT
CCITT
CCM
CCN
CCR
CCS
CCSS
CD
CDCS
CD-I
CDMA
CDPD
CDR
CD-ROM
CEI
CEN
CENELEC
CEPS
CEPT
CEPT
CERC
Computers and Communications
Computer Aided Design/Manifacturing
Computer Aided Engineering
Common Air Interface (DECT)
Computer Aided Manufacture
Canadian Network for the Advancement of Research, Industry, and
Competitive Access Provider
Customer Administration Panel
Computer Aided Software Engineering
Cable Television
Constant Bit Rate (ATM)
Cost-Based Scheduling
Computer Branch Exchange
Call Control Function
Comité Consultif International des Radiocomunications
Common Channel Interoffice Signaling
Consultative Committee on International Telegraphy and Telephony
Comité Consultif International de Telegraph et Telephone
Connection Control Model
Community Care Network
Carrier and Clock Recovery
Common Channel Signaling
Common Channel Signalling System
Compact Disc
Continuous Dynamic Channel Selection (DECT)
Compact Disc-Interactive
Code Division Multiple Access
Cellular Digital Packet Data
Call Detail Recording
Compact Disk-Read Only Memory
Comitato Elettrotecnico Italiano
Comité Europeen de Normalisation
COMITE' EUROPEEN DE NORMALISATION ELECTROTECHNIQUE
Common Electronic Purse Specifications
Conference of European Postal and Telecommunications
Council of European Posts and Telecommunications
Concurrent Engineering Research Center
CERN
Centre for European Nuclear Research
CES
Coast Earth Stations
CEV
Controlled Environment Vault
CGI
Common Gateway Interface
CHAP
Challenge Authentication Protocol (PPP)
CI
Consistency Index
CIR
Committed Information Rate
CIR
Committed Information Resource
CL
Connectionless
CLASS
Custom Local Area Signaling Services
CLEC
Competitive Local Exchange Carriers
CLEF
Commercial Licensed Evaluation Facility (ITSEC)
CLI
Calling Line Identification (DECT)
CLNet
ConnectionLess Networks
CLNP
ConnectionLess Network Protocol
CLP
Cell Loss Priority (ATM)
CLV
Constant Linear Velocity (tecnica lettura CD-ROM con velocità
angolare variabile)
CM
Commercial Message
CMIP
Common Management Information Protocol
CMIS
Common Management Information Services
CMISE
Common Management Information Service Element
CMOS
Complementary Metal Oxide Semiconductor
CMS
CDMA-based Mobile System
CMS
Customer Management System
CMYK
Cyan Magenta Yellow blacK
CNET
Centre National d'etudes des Telecommunications
CNI
Calling Number Identification
CNR
Carrier-to-Noise Ratio
CNT
Canadian National Telegraph
CO
Central Office
COC
Common Office Carrier
COMSAT
Communications Satellite Corporation
COMTAT
Central Office Multiple Technology Access Terminal
CONAP
Coalition of Open Network Architecture Parties
COnet
Connection-Oriented Networks
CONUS
CONtinental United States
CORBA
Common Object Request Broker Architecture
COU
Central Office Unit
CP
Connection Point
CPE
Customer Premises Equipment
CPFSK
Continuous Phase Frequency Shift Keying
CPIC
Common Programming Interface for Communications
CPM
Critical Path Method
CPM
Continuous Phase Modulation
CPODA
Contention Priority-Oriented Demand Allocation
CPSK
Coherent Phase Shift Keying
CPT
Canadian Pacific Telegraph
CPU
Central Processing Unit
CRC
Cyclic Redundancy Check
CRTC
Canadian Radio-Television and Telecommunications Commission
CRV
Call Reference Value
CS
Call Second
CS
Call Segment
CS1
Capability Set 1
CSC
Common Signaling Channel
CSCB
Canadian Society of Customs Brokers
CSM
Call Segment Model
CSMA
Carrier Sense Multiple Access
CSMA/CD
Carrier Sense Multiple Access / Collision Detect
CSN
Complex Sales Negotiation
CSR
Customer Service Representative
CSTA
Computer Supported Telecommunications Application
CSU
CT
CT-2[3]
CTA
CTI
CTIA
CTM
CTR
CTS
CU
CUG
CVSD
CW
CWA
Channel Service Unit
Computer Telephony
Cordless Telephone (2nd[3rd] generation)
Cognitive Task Analysis
Computer Telephony Integration
Cellular Telecommunications Industry Association
Cordless Terminal Mobility (DECT)
Common Technical Regulations (ETSI)
Cordless Telephony Standard
Channel Unit
Closed User Groups
Continuous Variable Slope Delta modulation
Continuous Wave
CEN Workshop Agreement
D
D/H
DA
DAC
DACS
DAMA
D-AMPS
DARPA
DAS
DAT
DAVIC
DBIR
DBMS
DBS
DCC
DCC
DCE
DCE
DCME
DCPSK
DCS
DCS
DCU
DDD
DDS
DECS
DECT
DES
DEW
DFA
DFIR
DHCP
DID
DIP
DISA
DIU
DIX
DLC
DLCI
DLSw
DM
DMA
DMA
DMAP
DMAR
Distribution Hub
Demand Assignment
Digital-to-Analog Converter
Digital Access and Cross-connect System
Demand Assignment Multiple Access
Digital-AMPS
Defense Advanced Project Research Agency
Dual Attachment Station (FDDI)
Digital Audio Tape
Digital Audio-Visual Council
Directed Beam InfRared
Data Base Management System
Direct Broadcast Service
Data Country Code (ATM)
Digital Compact Cassette
Data Communications Equipment
Data Circuit-terminating Equipment
Digital Circuit Multiplication Equipment
Differentially Coherent Phase Shift Keying
Digital Crossconnect System
Dynamic Channel Selection (DECT)
Distribution and Control Unit
Direct Distance Dialing
Dataphone Digital Service
Digitally Enhanced Cellular Services
Digital European Cordless Telecommunications
Data Encryption Standard
Distant Early Warning
Doped-Fiber Amplifier
Diffused InfRared
Dynamic Host Configuration Protocol
Direct Inward Dialing
Dedicated Inside Plant
Direct Inward System Access
Digital Interface Unit
Digital Intel Xerox (ethernet)
Digital Loop Carrier
Data Link Control Identifier
Data Link SWitching Service
Delta Modulation
Destination Multiple Access
Direct Memory Access
DECT Multimedia Access Profile
Designated Marketing Area Rank
DME
Distribution Management Environment
DMI
Desktop Management Interface (interrogazione a distanza configuraz.
h/w e s/w)
DN
Directory Number
DNIS
Dialed Number Identification Service
DNS
Domain Name System/Service (IP suite)
DOV
Data Over Voice
DP
Detection Point
DPCM
Differential Pulse Code Modulation
DPNSS
Digital Private Network Signalling System
DPRS
DECT Packet Radio Service
DQDB
Distributed Queued Dual Bus
DS
Digital Service
DS
Direct Sequence
DS
Differentiated Services over the internet (aka DiffServ)
DS-0
Digital Service, Level 0
DS-1
Digital Service, Level 1
DS-3
Digital Service, Level 3
DSA
Distribution Serving Area
DSB
Double Side Band
DSB-SC
Double Side Band - Suppressed Carrier
DS-CDMA
Direct Sequence Code Division Multiple Access
DSI
Digital Speech Interpolation (tecnica di compressione della voce)
DSMA
Digital Sense Multiple Access
DSM-CC
Digital Storage Media Command and Control
DSP
Digital Signal Processing
DSS
Digital Signalling System
DSSS
Direct Sequence Spread-Spectrum
DSU
Digital Service Unit
DSU
Distributed Switching Unit
DTAM
Document Transfer And Manipulation
DTD
Document Type Definition
DTE
Data Terminal Equipment
DTH
Direct To Home
DTMF
Dual Tone MultiFrequency
DTP
Distributed Technology Platform
DUT
Device Under Test
DVB
Digital Video Broadcasting
DVD
Digital Versatile Disc
DVI
Digital Video Interactive
DVS
Digital Video System / Digital Versatile System
DWDM
Dense Wavelength Division Multiplexing
DXC
Digital Cross Connect (SDH)
E
EAP
EAS
EBCDIC
EBES
EC
EC
ECMA
ECNet
EDFA
EDGE
EDI
EDI
EDI
EDVAC
EFS
EFT
Extensible Authentication Protocol (802.1x)
Extended Area Service
Extended Binary Coded Decimal Interchange Code
European Board for EDI Standards
European Commission
Exchange Carrier
European Computer Manufacturers Association
Economic Commerce Net
Erbium-Doped Fiber Amplifiers
Enhanced Data rates for GSM Evolution
Electronic Digital Interchange
Electronic Document Interchange
Electronic Data Interchange
Electronic Discrete Variable Automatic Computer
Error Free Seconds
Electronic Funds Transfer
EFTS
EGP
EIA
EIA
EIR
EIRP
ELR
ELV
EMA
EML
EMS
EMV
ENT
EOC
EOT
EPS
ERMES
ES
ESA
ESF
ESI
ESMR
ESN
ESP
ET
E-TDMA
ETN
ETRI
ETSI
EU
EUTELSAT
EVA
EVR
EWOS
Electronic Funds Transfer System
Exterior Gateway Protocol (routing)
Electronics Industries Association
Electronics Industries Association
Equipment Identity Register (GSM)
Effective Isotropic Radiative Power
Earthed Loop Recall
Expendable Launch Vehicle
Enterprise Management Architecture
Element Management Layer
Element Management System
Europay, Mastercard and VISA (smart card specifications)
Equivalent Noise Temperature
Embedded Operations Channel
End of Transmission
Encapsulated PostScript
European Radio MEssage Service (paging)
Errored Second
European Space Agency
Extended Super Frame
End System Identifier (ESI)
Enhanced Specialized Mobile Radio
Electronic Serial Number
Enhanced Service Provider
Exchange Terminal
Enhanced Time Division Multiple Access
Electronic Tandem Network
Electronics and Telecommunications Research Institute
European Telecommunications Standards Institute
European Union
European Telecommunications Satellite Organisation
Economic Value Added
Electronic Video Recorder
European Workshop for Open Systems
F
F/O
FACCH
FCAPS
FCC
FCC
FCCH
FCVC
FDD
FDDI
FDL
FDL
FDM
FDMA
FE
FEBE
FEC
FEP
FEXT
FFT
FGCS
FH
FHSS
FIGS
FITL
FLAG
Fiber Optic
Fast Associated Control CHannel (GSM)
Fault Configuration Accounting Performance Security
Federal Communications Commission
Federal Communications Commission (USA)
Frequency Correction CHannel (GSM)
Flow Control Virtual Circuit
Frequency Division Duplexing
Fiber Distributed Data Interface
Facility Data Link
Form Description Language
Frequency Division Multiplexing
Frequency Division Multiple Access
Functional Entity
Far-End Block Error
Forward Error Correction
Front-End Processor
Far End CROSS-Talk
Fast Fourier Transform
Fifth Generation Computer System
Frequency Hop
Frequency Hopping Spread Spectrum
Fraud Information Gathering System
Fiber In The Loop
Fiber-optic Link Around the Globe
FLL
FM
FMS
FN
FOC
FOIRL
FPLMTS
FQDN
FR
FRA
FSK
FSS
FSU
FT1
FTAM
FTP
FTP
FTTC
FTTH
FWA
FX
FYI
Form Layout Language
Frequency Modulation
Flexible Manufacturing System
Fiber Node
Fully Operational Capabilities
Fiber Optic Inter-Repeater Link
Future Public Land Mobile Telephone System
Fully Qualified Domain Name (DNS)
Frame Relay
Fixed Radio Access
Frequency Shift Keying
Fixed Satellite Service
Fixed Subscriber Unit
Fractional T1
File Transfer Access Mechanism
File Transfer Protocol (IP suite)
Foil Twisted Pair (= ScTP)
Fiber To The Curb
Fiber To The Home
Fixed Wireless Access
Foreign Exchange
For Your Information (RFC)
G
GAP
Gb
GEO
GFC
GII
GIS
GML
GMSC
GMSK
GOS
GOSIP
GPRS
GPS
GS
GSM
Mobile)
GSM-R
GTL
GUI
General Access Profile (DECT)
Gigabyte
Geostationary Earth Orbit
Generic Flow Control (ATM)
Global Information Infrastructure
Geographic Information System
Generalized Markup Language
Gateway Mobile Switching Centre (GSM)
Gaussian Minimum Shift Keying
Grade of Service
Government Open System Interconnect Profile
General Packet Radio Service (GSM)
Global Positioning System
Global Server
Global System for Mobile communications (orig. Group Spéciale
GSM for Railways
Globalstar Telecommunications Limited
Graphical User Interface
H
H/E
HALE
HAN
HASP
HDL
HDLC
HDPE
HDR
HDSL
HDT
HDTV
HEC
HFC
HIPERLAN
HIPPI
Headend
High-Altitude Long-Endurance
Home Area Network
Houston Automatic Spooling Program
Hardware Dewcription Language
High-Level Data Link Control
High-Density Polyethylene
High Data Rate
High bit rate Digital Subscriber Line
Host Digital Terminal
High Definition Television
Header Error Control (ATM)
Hybrid Fiber/Coax
High-Performance Radio Local Area Network
High-Performance Parallel Interface
HL7
HLR
HMD
HMR
HPA
HPB
HPC
HPCC
HRRC
HSCSD
HSSI
HTML
HTTP
HTU
Health Level 7
Home Location Register (GSM)
Head Mounted Display
High-speed Multimedia Ring
High Power Amplifier
HDSL Payload Block
High Performance Computing
High Performance Computing and Communications
Home Recording Rights Coalition
High-Speed Circuit Switched Data
High-Speed Serial Interface
HyperText Markup Language (Internet)
HyperText Transport Protocol (Internet)
HDSL Transceiver Unit
I
I/O
Input/Output
IAB
Internet Architecture[/Activities] Board
IANA
Internet Assigned Numbers Authority
IAS
Intelligent Antenna System
IBC
Integrated Broadband Communications
IBCN
Integrated Broadband Communication Network
IC
Integrated Circuit
ICA
International Communications Association
ICB
Intelligent Channel Bank
ICBO
International Conference of Building Officials
ICD
International Code Designator (ATM)
ICG
IntelCom Group
ICMP
Internet Control Message Protocol (IP suite)
ICMS
Interactive Commerce Management System
ICTSB
Information and Communication Technology Standards Board
(CEN/CENELEC/ETSI)
IDCMA
Independent Data Communications Manufacturers Association
IDLC
Integrated Digital Loop Carrier
IDT
Integrated Digital Terminal
IEC
International Engineering Consortium
IEC
International Electrotechnical Commission
IEEE
Institute of Electrical and Electronics Engineers
IEN
Internet Experiment Notes (RFC)
IESG
Internet Engineering Steering Group
IETF
Internet Engineering Task Force
IF
Intermediate Frequency
IFRB
International Frequency Registration Board
I-IP
Infrastructure Intelligent Peripheral
IISP
Interim Inter Switch Protocol (Public NNI - ATM)
IITF
Information Infrastructure Task Force
ILMI
Interim Local Management Interface (UNI ATM)
IM
Intermodulation
IMA
Interactive Multimedia Association
IMEI
International Mobile Equipment Identity (GSM)
IMN
Intelligent Mobile Network
IMP
Interface Message Processor
IMSI
International Mobile Subscriber Identity (GSM)
I-Mux
Inverse Multiplexer
IN
Intelligent Network
INCM
Intelligent Network Conceptual Model
INMARSAT International Maritime Satellite Organization
INS
Information Network System
INTELSAT International Telecommunications Satellite Consortium
IOC
InterOffice Channel
IOD
Individual Outward Dialing
IOL
IP
IP
IPC
IP-C
IPG
IPO
IPR
IPR
IRL
IRSG
IRTF
IS
ISAPI
ISC
ISC
ISCP
ISDN
ISDN-PRM
ISI
ISI
ISL
ISLAN
ISO
ISP
ISSS
ISUP
IT
ITC
ITSEC
ITU
ITVN
IVHS
IVN
IVR
IWF
IXC
Inter-Orbit Link
Intelligent Peripheral
Internet Protocol
Input Port Controller
Intelligent Peripheral Controller
Inter-Packet Gap (Ethernet)
Initial Public Offering
Intellectual Property Rights
Intellectual Property Rights
Inter-Repeater Link (Ethernet)
Internet Research Steering Group
Internet Research Task Force
In Service
Internet Server Application Programming Interface (Microsoft)
International Switching Center
Internet Software Consortium
Integrated Services Control Point
Integrated Services Digital Network
ISDN Protocol Reference Model
Integrated Services over the Internet (aka IntServ)
InterSymbol Interface
Inter-Satellite Link
Integrated Services LAN
International Standards Organisation
Internet Service Provider
Information Society Standardisation System
ISDN User Part (SS7)
Information Technology
Information Transfer Capability
Information Technology Security Evaluation and Certification
International Telecommunication Union
Interactive TV News
Intelligent Vehicle Highway System
Interactive Video Network
Interactive Voice Response
Inter-Working Function
IntereXchange Carrier
J
JAD
JDBC
JPEG
JSP
JVM
Joint Application Design
Java Data Base Connectivity
Joint Photographic Expert Group
Java Server Pages
Java Virtual Machine
K
KA
kbps
KMTC
KTU
KWOE
Knowledge Acquisition
Kilobits per second
Korean Mobile Telephone Company
Key Telephone Unit
Keyboard Work Entry
L
L1GW
LA
LAN
LANE
LAP-B
LAPD
Level 1 Gateway
Location Area (GSM)
Local Area Network
LAN Emulation (ATM)
Link Access Procedure, Balanced
Link Access Procedure, canale D
LAPM
LATA
LBRV
LC
LCD
LD
LDAP
LDC
LDS
LEC
LEC
LECID
LECS
LED
LEO
LES
LLC
LMDS
LMOS
LMR
LMSC
LNA
LOS
LOS
LOSW
LPC
LPTV
LRE
LS
LU
LVQ
Link Access Procedure for Modems
Local Access and Transport Area
Low Bit-Rate Voice circuits
Local Channel
Liquid Crystal Display
Laser Diode
Lightweight Directory Access Protocol (Internet)
Long Distance Carrier
Local Digital Switch
Local Exchange Carrier
LAN Emulation Client (ATM)
LEC IDentifier (ATM)
LAN Emulation Configuration Server (ATM)
Light Emitting Diode
Low Earth Orbit
LAN Emulation Server (ATM)
Logic Link Control
Local Multichannel Distribution System
Loop Management Operation System
Land Mobile Radio
LAN MAN Standard Committee
Low Noise Amplifier
Line-Of-Sight
Loss Of Signal
Loss Of Synchronization Word
Linear Predictive Coding
Low-Power Television
Long-Reach Ethernet
Local Server
Line Unit
Learning Vector Quantization (reti neurali)
M
MAC
Media Access Control (ISO-OSI)
MAC
Move, Add, and Change
MAC
Message Authentication Check
MADMAN
Mail And Directory MANagement (IETF - RFC1566 - x statistiche email via SNMP)
MAN
Metropolitan Area Network
MAP
Manufacturers Automation Protocol
MAP
Media Access Protocol
MAP
Maximum A Posteriori probability
MAP
Mobile Application Part (SS7)
MAPI
Messaging API (Microsoft)
MATV
Master Antenna TV
MAU
Medium Attachment Unit (LANs, Ethernet)
MAU
Multistation Access Unit (Token Ring)
MBC
Megahub Basis Controller
MBO
Management By Objective
Mbps
Mega (million) bits per second
MBS
Maximum Burst Size (ATM)
MCA
Micro Channel Architecture
MCPC
Multiple-Channel-Per-Carrier - una tecnica di FDMA, FM/FDM/FDMA
MC-TDMA
Multicarrier TDMA
MCU
Master Control Unit
MDBS
Mobile Database Station
MD-IS
Mobile Data Intermediate System
MDN
Microcellular Data Network (radio SS della Metricom)
MEO
Medium Earth Orbit
M-ES
Mobile End System
MES
Master Earth Station
MF
Multi-Frequency
MFJ
Modification of Final Judgment
MFN
Most Favored Nation
MGCP
Media Gateway Control Protocol
MHS
Message Handling Service (Netware)
MIB
Management Implementation Base
MIB
Management Information Base (SNMP)
MIC
Ministry of Information and Communications
MIC
Media Interface Connector
MIC
Media Interface Connector
MICR
Magnetic Ink Character Recoglnition (reti neurali)
MIDI
Musical Instrument Digital Interface
MIF
Mean Information Field
MII
Media Independent Interface (ethernet 100Mbit)
MIME
Multipurpose Internet Messaging/Mail Extensions (RFC 1521 Internet
std. 1992)
Mips
Million instructions per second
MIS
Management Information System
MIS
Marketing Intelligence System
MLSE
Ricevitori a Massima Verosimiglianza (Maximum Likelihood)
MMC
MultiMedia Controller
MMCD
MultiMedia CD
MMDS
Microwave Multipoint Distribution System
MMDS
Multichannel Multipoint Distribution System
MMDS
Microwave Multichannel Distribution System
MOD
Movies On Demand
MOS
Mean Opinion Score
MOU
Minutes of Use
MPEG
Moving Picture Expert Group
MPLS
Multi Protocol Label Switching (VPN)
MPMP
Microve Point-to-MultiPoint
MPOA
MultiProtocol Over ATM
MPP
Massively Parallel Processor
MRA
Mutual Recognition Agreements
MS
Meta-Server
MS
Mobile Station
MSAT
Mobile SATellite
MSAU
MultiStation Access Unit (Token Ring)
MSC
Mobile Switching Centres (cellulari)
MSK
Minimum Shift Keying
MSNet
Multiplexed Subscriber Network
MSO
Mobile Switching Office
MSO
Multiple System Operators
MSRN
Mobile Station Roaming Number (GSM)
MSS
Mobile Satellite Service
MTA
Metropolitan Trading Area
mtbf
mean time between failures
MTBI
Mean Time Between Incidents
MTP
Messager Transfer Point (GSM)
MTS
Message Telecommunications Service
MTS
Mobile Telephone Service
MTSO
Mobile Telephone Switching Office (cellulare)
MTTF
Mean Time To Failure
MTTR
Mean Time To Repair
MTU
Maximum Transmission[/Transfer] Unit
MVDS
Multichannel Video Distribution System
MX
Mail eXchange (DNS)
N
NAFTA
NAK
NAP
NASA
NATA
NAUN
NBS
NBTel
NCB
NCC
NCC
NCIH
NCP
NCP
NCP
NCTA
NE
NEC
NECA
NetBIOS
NEXT
NFOEC
NFPA
NFS
NGBT
NGDLC
NGSO
NIC
NII
N-ISBN
NIST
NIU
NMC
NMF
NML
NMS
NMS
NMT
NNI
NNTP
NORAD
NOS
NPRM
NRC
NREN
NRM
NRM
NRTL
NRZ
NS
NSA
NSAP
NSF
NSFNet
NSM
NT
North American Free Trade Agreement
Negative Acknowledgment
Network Access Point
National Aeronautics and Space Administration
North American Telecommunications Association
Next Active Upstream Neighbour (Token Ring)
National Bureau of Standards
New Brunswick Telephone Company
National Certification Bodies
Network Control Center
New Common Carrier
North Carolina Information Highway
Network Control Point
Network Control Processor (Ardis)
Network Control Protocol
National Cable Television Association
Network Element
National Electric Code
National Exchange Carrier Association
Network Basic Input/Output System
Near End CROSS-Talk
National Fiber-Optic Engineering Conference
National Fire Protection Association
Network File System protocol
Negotiating Group on Basic Telecommunications
Next-Generation Digital Loop Carrier
Non-GeoStationary Orbit
Network Interface Card (LANs)
National Information Infrastructure
Narrowband ISBN
National Institute of Science/Standards and Technology (USA)
Network Interface Unit
Network Management Center
Network Management Forum
Network Management Layer
Network Management System
Network Management Station (SNMP)
Nordic Mobile Telephone
Network-Network Interface (ATM)
Network News Transfer Protocol
North American Aerospace Defence Command
Network Operating System
Notice for Proposed Rule Making
Network Reliability Council
National Research and Engineering Network
Negotiated Rule Making
Normal Response Mode
Nationally Recognized Testing Laboratory
Non Return to Zero
Name Server (DNS)
National Security Agency (USA)
Network Service Access Point (ATM)
National Science Foundation
National Science Foundation Network
Network Status Monitoring
Network Termination
NTT
NTU
NVOD
NZDS
Nippon Telegraph and Telephone Corporation
Network Terminating Unit
Near Video on Demand
Non Zero Dispersion Shifted (ITU-T G.655)
O
OA
OAM
OC
OC-1
OC-3
OCC
OCR
ODA
ODBC
OE
OE
OECD
OIM
OLE
OMC
ONA
ONP
ONU
OOK
OOT
OPC
OSNR
O-PSK
OPX
O-QAM
O-QASK
ORB
OS
OS
OSF
OSHA
OSI
OSI/NMF
OSP
OSPF
OSS
OTP
Optical Amplifier
Operation And Maintenance (OAM)
Optical Carrier
Optical Carrier, level 1
Optical Carrier, level 3
Other Common Carrier
Optical Character Recognition
Open Document Architecture
Open Data Base Connectivity
Optical Extension
Originating Equipment
Organization for Economic Cooperation and Development
Operations Interface Module
Object Linking and Embedding
Operation and Maintenance Centre (GSM)
Open Network Architecture
Open Network Provision
Optical Network Unit
On-Off Keying
Object-Oriented Technology
Output Port Controller
Optical Signal to Noise Reduction
Offset-keyed PSK
Off-Premises eXtension
Offset QAM
Offset QASK
Object Request Broker
Operations System
Operations System
Open Systems Foundation
Occupational Safety and Health Administration
Open System Interconnection
Open Systems Interconnection/Network Management Forum
Outside Serving Plant
Open Shortest Path First
Operations Support System
Open Trading Protocol (Internet Commerce)
P
PABX
PACS
PAD
PAL
PAM
PAMR
PAP
PAP
PAS
PAX
PBX
PC
PC
PCH
PCM
Private Automatic Branch eXxchange
Personal Access Communications System
Packet Assembler-Disassembler
Phase Alteration Line
Pulse Amplitude Modulation
Public Access Mobile Radio
Password Authentication Protocol (PPP)
Public Access Profile (DECT)
Performance Animated System
Private Automatic Exchange
Private Branch EXchange
Printed Circuit
Personal Computer
Paging CHannel (GSM)
Pulse Code Modulation
PCMCIA
PCME
PCN
PCR
PCS
PDA
PDC
pdf
PDFA
PDFFA
PDG
PDH
PDL
PDN
PDSN
PDU
PEM
PERL
PERSIA
PFD
PH
PHP
PHS
PHY
PKI
PICS
PIN
PLL
PLMN
PM
PMD
PMD
PMR
PMR
PMT
PN
PNNI
PNO
PON
POP
POP
POS
POS
POTS
POTV
PPC
PPF
PPP
PPV
PRI
PRK
PROM
PS II
PSC
PSI-CELP
PSK
PSN
PSNR
PSS
PSTN
PSV
PT
PTAR
Personal Computer Memory Card International Association
Packetized Circuit Multiplication Equipment
Personal Communication Network
Pead Cell Rate
Personal Communication Services
Personal Digital Assistant
Personal Digital Cellular (standard giapponese)
probability density function
Praseodymium-Doped Fiber Amplifier
Praseodymium-Doped Fluoride-Fiber Amplifier (PDFFAs)
Polarization Dependent Gain
Plesiochronous Digital Hierarchy
Polarization Dependent Loss
Public Data Network
Public Data Switched Network
Protocol Data Unit
Privacy Enhanced Mail
Practical Extraction and Report Language
PERSonal Information Agent
Power Flux Density
Packet Handler
Personal HandyPhone
Personal Handyphone System
PHYsical (livello 1 FDDI)
Public Key Infrastructure
Protocol Implementation Conformance Statement
Personal Identification Number
Phase-Locked Loop
Public Land Mobile Network
Phase Modulation
Polarization Mode Dispersion
Physical Medium Dependent (livello 1 FDDI)
Private Mobile Radio
Private Mobile Radio
Personal Mobile Telecommunications
Power Node
Private Network Node Interface
Public Network Operator
Passive Optical Network
Point of Preference
Point of Presence
Point of Sale
Personal Operating Space (802.15)
Plain Old Telephone Service
Plain Old Television
Pay-Per-Channel
PACS Providers Forum
Point-to-Point Protocol
Pay-Per-View
Primary-Rate ISDN
Phase Reversal Keying (=BPSK)
Programmable Read-Only Memory
Personal Secretary II
Public Service Commission
Pitch-Synchronous Innovation-Code Exited Linear Prediction
Phase Shift Keying
Public Switched Network
Peak Signal-to-Noise Ratio
UK Public Packet Switching Service
Public Switched Telephone Network
Polarization State Variation
Payload Type (ATM frames)
Prime Time Access Rule
PTB
PTT
PTTA
PUC
PVC
PVN
PVPC
PW
Priority Token Bank
Postal Telegraph and Telephone Authority
Postal Telephone and Telegraph Administration
Public Utility Commission
Permanent Virtual Circuit
Private Virtual Network
Permanent Virtual Path Connection
Pulse Width
Q
QA
QAM
QASK
QC
QDU
QOS
QPSK
QSAFA
Quality Assurance
Quadrature Amplitude Modulation
Quadrature Amplitude Shift Keying
Quality Control
Quantisation Distortion Units
Quality Of Service
Quaternary Phase Shift Keying
Quasi-Semi Autonomous Frequency Assignment
R
R&D
Research and Development
R&O
Report and Order
RA
Rate Adaptation (ISDN/GSM)
RAB
Registrar Accreditation Board
RACE
Research and development in Advanced Communications technologies
for Europe
RACH
Random Access CHannel (GSM)
RAD
Rapid Application Development
RAID
Redundant Array of Inexpensive Disks
RAM
Random Access Memory
RBOC
Regional Bell Operating Company
RCA
Radio Corporation of America
RCC
Radio Common Carrier
RDBMS
Relational DataBase Management System
RDCRS
Research and Development Center for Radio Systems
RDF
Resource Description Framework (XML)
RDP
Real-time Distributed Processing
RDSS
Radio Determination Satellite System
RDT
Remote Digital Terminal
RELP
Residual-Excited Linear Predictive coding
REPS
Raychem Electronic Packaging System
RF
Radio Frequency
RFC
Request For Comments (procedura per std. Internet)
RFID
Radio Frequency IDentification
RFP
Request For Proposal
RFP
Radio Fixed Part (DECT)
RG
Residential Gateway
RGB
Red Green & Blue
RHC
Regional Holding Company
RID
Remote Isolation Device
RIL
Radio Interface Layer (GSM)
RIP
Routing Information Protocol
RISC
Reduced Instruction Set Computing
RLAN
Radio Local Area Network
RLL
Radio Local Loop
RLL
Radio Local Loop
RLP
Radio Link Protocol
RM-ODP
Reference Model of Open Distributed Processing
rms
round mean square (valore efficace)
RMTAT
Remote Multiple Technology Access Terminal
RNR
ROADS
ROAR
ROM
ROS
RP
RPC
RPCU
RPE
RPI
RR
RSL
RSM
RSVP
RT
RTCP
RTF
RTI
RTP
RUS
Receive Not Ready
Robust Open Architecture Distributed-Switching
Return On Applied Resources
Read Only Memory
Remote Operations Service
Radio Port
Remote Procedure Call
Radio Port Control Unit
Remote Peripheral Equipment
Resource Platform Interface
Receive Ready
Request and Status Link
Radio Subsystem Management o protocollo 08.58 (SGM)
Resource reSerVation Protocol (IP)
Remote Terminal
Realtime Transport Control Protocol (IP)
Rich Text Format
Routing Tag Insertion
Realtime Transport Protocol (IP)
Rural Utility Service
S
S/I
SA
SAA
SACCH
SAP
SAPI
SAR
SAS
SBC
SBCCI
SBS
SC
SC
SCCP
SCCS
SCE
SCF
SCH
SCM
SCP
SCPC
SCR
SCS-1
ScTP
SD
SDCCH
SDH
SDLC
SDMA
SDN
SDU
SEPP
SES
SES
SF
SFD
SG
SGML
SGMP
Signal to Influence
Sensitivity Analysis
Systems Application Architecture
Slow Associated Control CHannel (GSM)
Service Access Point
Service Access Point Identifier (LAPD)
Segmentation And Reassembly
Single Attachment Station (FDDI)
Sub-Band Coding
Southern Building Code Congress International
Stimulated Billouin Scattering
Standards Committee
Subscriber Channel (fiber optics)
Signalling Connection Control Part (SS7)
Switching Center Control System
Service Creation Environment
Service Control Function
Synchronization CHannel (GSM)
Satellite Connection Manager
Service Control Point (SS7)
Single-Channel-Per-Carrier - una tecnica di accesso multiplo FDMA
Sustainable Cell Rate (ATM)
Signaling Capability Set 1
Screened Twisted Pair
Super Density
Stand-alone Dedicated Control CHannel (GSM)
Synchronous Digital Hierarchy
Synchronous Data Link Control
Spatial Division Multiple Access
Software-Defined Network
Service Data Unit
Secure Electronic Payment Protocol
Severely Errored Second
Severely Error Seconds
Super Frame
Start of Frame Delimiter (Ethernet)
Study Group
Standard Generalized Markup Language
Simple Gateway Management Protocol
S-HTTP
SIB
SIM
SINAD
SIP
SIP
SIP
SIR
SL
SLA
SLEE
SLID
SLIP
SLP
SM
SMA
SMATV
SMDI
SMDR
SMDS
SM-DS
SMG
SMI
SML
SMPP
SMPP/P
SMR
SMR
SMS
SMS
SMSC
SMSL
SMT
SMTP
SNA
SNM
SNMP
SNR
SNW
SOA
SOAP
SOHO
SONET
SOP
SP
SPADE
SPC
S-PCS
SPID
SPO
SPU
SQE
SQL
SRB
SRDF
SRNET
SRS
SRT
SS
SS/TDMA
SS7
SSB
SSB-SC
Secure Hypertext Transfer Protocol
Service Independent Building block
Subscriber Identity Module (GSM)
SIgnal-to-Noise And Distortion
Società Italiana Per l'esercizio delle telecomunicazioni
Session Initiation Protocol (RFC 2543)
Signalling Information Protocol
Signal to InterfeRence
Service Logic
Semiconductor Laser Amplifier
Service Logic Execution Environment
Subscriber Location IDentifier
Serial Lines Internet Protocol
Service Logic Program
Single Mode
Sub Miniature Assembly
Satellite Master Antenna TV
Simplified Message Desk Interface
Station Message Detail Recording
Switched Multimegabit Data Service
Single-Mode Dispersion Shifted (ITU-T G.653)
Special Mobile Group (GSM)
Structure of Management Information (RFC 1155)
Service Management Layer
Short Message Peer-to-Peer (GSM)
Short Message Peer-to-Peer Provisioning (GSM)
Specialised Mobile Radio
Single-Mode Reduced (ITU-T G.652)
Service Management System
Short Message Service (GSM)
Short Message Service Centre(GSM)
Standard Multimedia Scripting Language
Station ManagemenT (FDDI)
Simple Mail Transfer Protocol (IP suite)
Systems Network Architecture
Subscriber Network Master
Simple Network Management Protocol (IP suite - RFC 1157)
Signal-to-Noise Ratio
Subscriber NetWork
Start Of Authority (DNS)
Simple Object Access Protocol
Small Office / Home Office environment
Synchronous Optical NETwork
State of Polarization
Static Priority
SCPC PCM multiple Access Demand Assignment Equipment
Stored Program Control
Satellite Personal Communication Service
Service Profile IDentifier
Sales Prevention Organization
Subscriber Premises Unit
Signal Quality Error (Ethernet)
Structured Query Language
Source Routing Bridging (Token Ring)
Symmetrix Remote Data Facility
Satellite Relay Network
Stimulated Raman Scattering
Source Routing Transparent (Token Ring)
Spread Spectrum
Satellite-Switched TDMA
Signalling System no. 7 (v. CCSS7) usato nell'ISDN
Single-Side Band
Single Side Band - Suppressed Carrier
SSF
Service Switching Function
SSL
Secure Socket Layer
SSMA
Spread Spectrum Multiple Access
SSP
Service Switching Point (SS7)
ST
Straight Tip (fiber optics)
STDM
Statistical Time Division Multiplexing
STEN
Scientific Trans-European Network
STIR
Science and Technology International of Russia
STM
Synchronous Transfer Mode
STM-1,4,16
Synchronous Transport Module level-1,4,16 (SDH)
STMP
State Telecommunications Modernization Plan
STMP
Simple Mail Transfer Protocol (parte del TCP/IP)
STP
Shielded Twisted Pair
STP
Service Transfer Point (SS7)
STS
Satellite Transport Service
STT
Set-Top Terminal
SU
Subscriber Unit
SU
Switching Unit
SVC
Switched Virtual Circuit
SVDN
Switched Video Digital Network
SWAP
System Wide Area Paging
T
TA
TACS
TAF
TAPI
TAS
TASI
TBR
TCAP
TCH
TCN
TCP
TCP/IP
TCSEC
TD
TDD
TDM
TDMA
TE
TELESAT
TEN-IBC
TETRA
TFM
TFO
TFTP
TI
TIA
TIFF
TIM
TINA-C
TL1
TLS
TMN
TOA
TOS
TOS
TP
TPC
TPDU
Terminal Adapter
Total Access Communication System
Terminal Adapting Function
Telephony Application Programming Interface
Telephone Answering Service
Time Assigned Speech Interpolation
Technical Basis for Regulation (ETSI)
Transaction Capability Application Part (SS7)
Traffic CHannel (GSM)
Train Communication Network
Transmission Control Protocol (IP suite)
Transmission Control Protocol/Internet Protocol
Trusted Computer System Evaluation Criteria
Trasmissione Dati
Time Division Duplex(ing) (cordless)
Time Division Multiplexing
Time Division Multiple Access
Terminal Equipment
Telecommunications Satellite Corporation
Trans-European Networks-Integrated Broadband Communications
Trans European Trunked RAdio
Tamed Frequency Modulation (un tipo di CPM)
Transcoder Free Operation (voice encoding)
Trivial File Transfer Protocol (IP suite)d
Technician Interface (telnet)
Telecommunications Industries Association (USA)
Tag Image File Format
Telecom Italia Mobile
Telecommunications Information Networking Architecture Consortium
Transaction Language 1
Tunable Laser Source
Telecommunications Management Network
Time Of Arrival
Telecommunications Operating System
Type Of Service (IP)
Transmission Protocol
Transmit Power Control
Transport Data Protocol Unit
TPEG
TP-PMD
TQB
TQM
TRAU
TRIP
TSAP
TSAPI
TSAT
TSI
TTC
TTL
TUP
TVRO
TVSAT
TWTA
Traffic Protocol Expert Group
Twisted Pair - Physical Medium dependent (FDDI)
Total Quality Benchmarking
Total Quality Management
Transcoder Rate Adapter Unit (GSM)
Trade-Related Intellectual Property
Transport Service Access Point
Telephony Server Application Programming Interface
T1 Small Aperture Terminal
Time-Slot Interchange
Tracking, Telemetry and Command subsystem
Time To Live (IP)
Telephone User Point (SS7)
Television Receive Only
TeleVision Small Aperture Terminal
Travelling Wave Tube Amplifier
U
UBR
UDI
UDLC
UDP
UDPC
UE
UF
UHF
UHF
UIT
ULP
ULPC
ULS
Um
UMTS
UNI
UNMA
UPN
UPPC
UPS
UPT
UPTN
URL
USAT
USDC
USF
UTP
UTTP
Unspecified Bit Rate
Unrestricted Digital Information
Universal Digital Loop Carrier
User Datagram Protocol (IP suite)
Universal Digital Portable Communications
User Element
User Facility
Ultra-High Frequency
Ultra High Frequency
Unione Internazionale Telegrafica (comprende CCITT e CCIR)
User Location Protocol
Up-Link Power Control - anche UPPC
Universal Locator Service (Internet)
interfaccia radio (GSM)
Universal Mobile Telecommunication System
User Network Interface (ATM)
Unified Network Management Architecture
Universal Personal Number
Up-Path Power Control - anche ULPC
Uninterrupted/Uninterruptible Power System/Supply
Universal Personal Telecommunication
UPT Number
Uniform Resource Locator (Internet)
Ultra Small Aperture Terminal
US Digital Communications
Universal Service Fund
Unshielded Twisted Pair
Unshielded Telephone Twisted Pair
V
VAC
VAD
VAN
VAR
VAS
VB
VBR
VBX
VC
VCx
VCC
VCI
Voice Activity Compression (detta anche DSI)
Value-Added Dealer
Value-Added Network
Value-Added Reseller
Value Alignment Service
Visual Basic
Variable Bit Rate (ATM)
Visual Basic eXtensions
Virtual Circuit
Virtual Container x (SDH)
Virtual Channel Connection (ATM)
Virtual Channel Identifier (ATM)
VCO
VD
VDT
VES
VF
VHDL
VHF
VHSIC
VIEW
VIM
VIP
VISTA
VLR
VMS
VOD
VoIP
VPI
VPN
VPX
VRML
VS
VSAT
VSB
VTAM
VVC
Voltage Controlled Oscillator
Virtual Definition
Video Dial Tone
Video-Enforcement System
Virtual Frequency
VHSIC Hardware Description Language
Very High Frequency
Very High Speed Integrated Circuit
Virtual Interactive Environment for Workshops
Vendor Independent Messaging interface (e-mail)
Video Information Provider
Video Information Services Terminal Access
Visitors Location Register (GSM)
Voice Messaging System
Video-On-Demand
Voice Over IP
Virtual Path Identifier (ATM)
Virtual Private Network
Virtual Path Cross-Connect
Virtual Reality Markup Language
Virtual Source
Very Small Aperture Terminal
Vestigial Side Band
Virtual Telecommunications Access Method
Virtual Visual Center
W
WACS
WAIS
WAN
WAP
WARC
WATS
WCPE
WDM
WER
WISP
WLAN
WLL
WORM
WRC
WWW
WYSIWYG
Wireless Access Communications System
Wide Area Information Server
Wide Area Network
Wireless Access Protocol
World Administrative Radio Conference
Wide Area Telecommunications Service
Wireless Customer Premises Equipment (basato sul DECT)
Wavelength Division Multiplexing
Word Error Rate
Wireless Internet Service Provider
Wireless Local Area Network
Wireless Local Loop
Write Once Read Many times
World Radiocommunication Conference
World Wide Web
What You See Is What You Get
X
XCVR
transCeiVeR
XHTML
XML
XNS
eXtensible HTML
eXtensible Markup Language
Xerox Network System
XSL
XUL
Extensible Stylesheet Language
eXtensible User Language (XML)