통신 용어^^!

A   AA : Application Association   AAL : ATM Adaptation Layer   ABM : Asynchronous Balanced Mode   ABR : Area Border Router   ABR : Available Bit Rate   ABT : ATM Block Transfer   AC : Alternating Current   AC : Application Context   ACCPR : Adjacent Channel Coupled Power Ratio   ACD : Automatic Call Distribution   ACF : Access Control Field   ACF : Advanced Communications Facility   ACIPR : Adjacent Channel Interface Power Ratio   ACK : ACKnowledgement   ACL : Advanced CMOS Logic   ACM : Address Complete Message   ACR : Allowed Cell Rate   AD : Analog-to-Digital   ADM : Add/Drop Multiplexers   ADPCM : Adaptive Differential Pulse Code Modulation   ADSL : Asymmetric Digital Subscriber Line   ADSL : Asymmetric Digital Subscriber Loop   AE : Application Entity   AES : Advanced Encryption Standard   AF : Assured Forwarding   AF : Audio Frequency   AFC : Automatic Frequency Control   AFNOR : Association Francaise de normalisation   AFR : Active Feedback Resonator   AGC : Automatic Gain Control   AI : Artificial Intelligence   AIM : ATM Inverse Multiplexer   AIN : Advanced Intelligent Network   AIR : Additive Increase Rate   AIS : Alarm Indication Signal   AIS-E : Alarm Indication Signal-External   ALC : Automatic Level Control   ALU : Arithmetic Logic Unit   ALS : Application Layer Structure   AM : Amplitude Modulation   AMA : Automatic Message Accounting   AMI : Alternate Mark Inversion   AMPS : Advanced Mobile Phone Service   AMR : Automatic Meter Reading   ANI : Automatic Number Identification   ANM : Answer Message   ANS : American National Standard   ANS : Advanced Networks and Services   ANSI : American National Standards Institute   AO/DI : Always On/Dynamic ISDN   AOW : Asia-Oceania Workshop   AP : Application Process   APAN : Asia Pacific Advanced Network   APB : Available Path Bandwidth   API : Application Programming Interface   APON : ATM Passive Optical Network   APPL : Analog PLL   APPN : Advanced Peer to Peer Network   ARC : Administrative Radio Conference   ARE : All Routes Explorer   ARIS : Aggregate Route-based IP Swithcing   ARM : Application Resource Manager   ARP : Address Resolution Protocol   ARPA : Advanced Research Projects Agency   ARQ : Automatic Repeat reQuest   ARS : Audio Respone System   APE : Application Protocol Entity   AS : Autonomous System   ASAP : Application Service Access Point   ASBR : Autonomous System Boundary Router   ASC : AIN Switch Capabilities   ASCII : American Standard Code for Information Interchange   ASE : Application Service Element   ASIC : Application Specific Integrated Circuit   ASK : Amplitude Shift Keying   ASN : Abstract Service Notation   ASN.1 : Abstract Syntax Notation.1   ASON : Automatically Switched Optical Channel Networks   ASP : Abstract Service Primitive   ASP : Application Service Provider   ASRM : Abstract System Reference MOdel   ASSP : Application Specific Standard Product   ASTN : Automatically Switched Transport Network   ATD : Asynchronous Time Division   ATM : Asynchronous Transfer Mode   ATMARP : ATM Address Resolution Protocol   ATS : Abstract Test Suite   ATSC : Advanced Television Systems Committee   AU : Access Unit   AUI : Attachment Unit Interface   AUP : Acceptable Use Policy   AUU : ATM User-to-User   AV : Audio Visual   AVC : Automatic Volume Control   AWC : Automatic Answer Circuit   AWGN : Additive White Gaussian Noise       -------------------------------------------------------------------------------   B   --------------------------------------------------------------------------------       B2B : Business to Business   BA : Branch Amplifier   BAAP : Buenos Aires Action Plan   BASIC : Beginner's All-purpose Symbolic Instruction Code   BBC : broadband Bearer Capability   BBS : Bulletin Board Service   BBS : Bulletin Board System   BC : Bearer Capability   BCBDS : Broadband Connectionless Data Bearer Service   BCD : Binary Coded Decimal   BCDMA : Broad Band CDMA   B-Channel : Bearer Channel   BCOB : Broadband Class of Bearer   BCS : British Computer Society   BCP : Business Continuity Planning   BCU : Broadcast Control Unit   BECN : Backward Explicit Congestion Notification   BER : Bit Error Rate   BETRS : Basic Exchange Telecommunication Radio Service   BEV : Billion Electron Volts   BGP : Border Gateway Protocol   BGT : Broadcast and Group Translators   B-ICI : Broadband Inter Carrier Interface   B-ICI SAAL : B-ICI Signaling ATM Adaptation Layer   BIND : Berkeley Internet Name Domain   BIOS : Basic Input Output System   BIP : Bit Interleaved Parity   B-ISDN : Broadband Integrated Services Digital Network   BISSI : Broadband Inter Switching System Interface   B-ISUP : Broadband ISDN User's Part   BISYNC : BInary SYNchronous Communication   B-LLI : Broadband Low layer Information   BMA : Broadcast Multiple Access   BN : Bridge Number   BNC : Baby N Connector   B-NT : Broadband Network Termination   BOF : Birds of Feather   BOM : Beginning of Message   BOOTP : Bootstrap Protocol   BPDU : Bridge Protocol Data Unit   BPF : Bandpass Filter   BPI : Bits Per Inch   BPML : Business Process Modeling Language   BPP : Bridge port Pair   BPS : Bits per Second   BPSK : Binary Phase Shift Keying   BPSS : Business Process Specification Scheme   BRA : Basic Rate Access   BRI : Basic Rate Interface   BSC : Binary Synchronous Communication   BSD UNIX : Berkeley Software Distribution UNIX   BSP : Business Service Provider   BSVC : broadcast switched Virtual Connections   BT : British Telecom   BTAG : Begin Tag   B-TE : broadband Terminal equipment   BTS : Base Transceiver Station   BUS : Broadcast and Unknown Server   BW : Bandwidth   BWS : Broadcasting WebSite       --------------------------------------------------------------------------------       C   --------------------------------------------------------------------------------       C/N : Carrier to Noise Ratio   CA : Cell Arrival   CAC : Call Admission Control   CAC : Connection Admission Control   CAD/CAM : Computer Assisted Design/ Manufacturing   CADN : Cellular Acccess Digital Network   CAE : Computer Aided Engineering   CAI : Computer Aided Instruction   CAI : Common Air Interference   CALS : Continuous Acquisition and Life-cycle Support   CAM : Computer Aided Manufacturing   CANARIE : Canadian Network for Advancement of Research, Industry and education   CAP : Carrierless Amplitude Phase   CAS : Channel Associated Signaling   CASE : Common Application Software Element   CASE : Computer Aided Systems Engineering   CAT : Computer Aided Translation   CATV : Community Antenna TeleVision (alias Cable Television)   CAV : Constant Angular Velocity   CBD : Component Based Development   CBDS : Connectionless Broadband Data Services   CBQ : Class Based Queuing   CBR : Constant Bit Rate   CBT : Computer Based Training   CBT : Core Based Tree   CC : Continuity Cell   CC : Condition Code   CC : Connection Confirm‎   CCB : Configuration Control Board   CCD : Charge Coupled Device   CCI : Common Client Interface   CCIRN : Coordinating Committee for Intercontinental Research Networking   CCITT : International Telegraph and Telephone Consultative Committee   CCP : Channel Change Protocol   CCR : Current Cell Rate   CCR : Configuration Change Request   CC-RA : Common Criteria Recognition Arrangement   CCS :Ccommon Channel Signaling   CCSS7 : Common Channel Signaling System 7   CCTV : Closed Circuit TeleVision   CD : Compact Disc   CD-A : Compact Disc Audio   CDDI : Copper Distributed Data Interface   CD-I : Compact Disc Interactive   CDMA : Code Division Multiple Access   CDPD : Cellular Digital Packet Data   CD-R : Compact Disc-Recordable   CD-ROM : Compact Disk-Read-Only Memory   CDS : Cell Directory Service   CDSL : Consumer Digital Subscriber Line   CDT : Cell Delay Tolerance   CDV : Cell Delay Variation   CDVT : Cell Delay Variation Tolerance   CEI : Connection Endpoint Identifier   CEN : Comite Europeene de Normalisation   CENELEC : European Committee for Electrotechnical Standardization   CEO : Chief Executive Officer   CER : Cell Error Ratio   CER : Circuit Emulation Service   CES : Circuit Emulation Service   CEF : Call for Proposals   CG : Computer Graphics   CGA : Color Graphics Adapter   CGI : Computer Graphics Interface   CGI : Common Gateway Interface   CGM : Computer Graphics Metafile   CHAP : Challenge Handshake Authentication Protocol   CI : Congestion Indicator   CIB : CRC Indication Bit   CIBER : Cellular Intercarrier Billing Exchange Record   CIC : Carrier Identification Code   CIDR : Classless Inter Domain Routing   CIE : NHRP Client Information Element   CIP : Carrier Idenfication Parameter   CLP : Classical IP over ATM   CIR : Committed Information Rate   CISC : Complex Instruction-Set Computer   CL : Connectionless   CL : Current Loop   CLAD : Cell Assembly And Disassembly   CLNAP : Connectionless Network Access Ptotocol   CLNP : Connectionless Network Protocol   CLNP : Connectionless Network Protocol   CLNS : Connectionless Network Service   CLP : Cell Loss Priority   CLR : Cell Loss Ratio   CLS : Connectionless Server   CLSF : Connectionless Service Function   CLTP : ConnectionLess Transport Protocol   CLV : Constant Linear Velocity   CMC : Cellular Mobile Carrier   CME : Component Management Entity   CMI : Coded Mark Inversion   CMIP : Common Management Information Protocol   CMIS : Common Management Information Service   CMISE : Common Management Information Service Element   CMM : Capability Maturity Model   CMOS RAM : Complementary Metal-Oxide Semiconductor Random Access Memory   CMOT : Common Management information protocol Over TCP/IP   CMR : Cell Misinsertion Rate   CN : Copy Network   CNM : Customer Network Management   CNS : Car Navigation System   CO : Central Office   CO : Connection Oriented   COD : Connection Oriented Data   CODEC : Coder/Decoder   COM : Continuation of Message   COBOL : Common Business Oriented Language   COBRA : Common Object Request Broker Architecture   CoS : Class of Service or Classes of Services   COS : Corperation for Open Systems International   COSINE : Cooperation for Open Systems Interconnection Networking in Europe   CP : Connection Processor   CP : Control Plane   CPCS : Common Part Convergence Sublayer   CPE : Customer Premises Equipment   CPFSK : Continuous Phase frequency Shift Keying   CPI : Common Part Indicator   CPN : Calling Party Number   CPN : Customer Premises Network   CPS : Content Provider System   CPU : Central Processing Unit   CQM : Channel Quality Measurement   Crankback IE : Crankback-Information Element   CRC : Cyclic Redundancy Check   CRC : Cyclic Redundancy Code   CRCG : Common Routing Connection Group   CR-LDP : Constraint-based Routing LDP   CRM : Customer Relationship Management   CRT : Cathode Ray Tube   CS : Convergence Sublayer   CS : Carrier Selection   CS1 : Capability Set One   CS2 : Capability Set Two   CSA : Carrier Serving Area   CSI : Convergence Sublayer Indication   CSMA/CD : Carrier Sence Multiple Access with Collision Detection   CSP : Computer Service Provider   CSPDN : Circuit Switched Public Data Network   CSPF : Constraint-based Shortest Path First   CSR : Cell Missequenced Ratio   CSR : Cell Switch Router   CSU : Channel Service Unit   CT : Cordless Telephone   CT2 : Cordless Telephone 2   CTD : Cell Transfer Delay   CTI : Computer Telephony Integration   CTIA : Cellular Telecommunication Industry Association   CTP : Connection Termination Point   CTR : Common Technical Regulations   CTS : Conformance Testing Service   CTV : Cell Tolerance Variation   CUG : Closed Users Group   CUI : character User Interface   CVSM : Continuously Variable Slope Delta Modulation   CV : Constant Voltage   CW : Continuous Wave       --------------------------------------------------------------------------------       D   --------------------------------------------------------------------------------       DA : Destination MAC address   DA : Destination Address   D/A : Digital to Analog   DAB : Digital Audio Broadcasting   DAC : Digital-Analog Converter   DAMPS : Digital AMPS   DAL : Data Access Line   DANTE : Delivery of Advanced Netwrok Technology to Europe   DAP : Directory Access Protocol   DARC : Data Radio Channel   DARPA : Defence Advanced Research Projects Agency   DAS : Direct Attached Storage   DAT : Digital Audio Tape   DAVIC : Digital Audio Visual Council   dB : Decibel   dBc : Decibel below carrier   DBMS : Data Base Management System   dBm : Decibel(relative to 1mW)   DBM : Direct Balanced Mixer   DBR : Deterministic Bit Rate   DBR : Data Burst Randmizer   DBR : Deterministic Bit Rate   DBS : Direct Broadcast Satellites   DBR : Deterministic Bit Rate   dBW : Decibel(relative to 1 Watt)   DC : Device Control   DC : Direct Current   DCC : Data Country Code   DCC : Digital Color Code   DCE : Data Communication Equipment   D-Channel : Data Channel   DCS : Digital Cellular System   DCT : Discrete Cosine Tranform   DD : Depacketization Delay   DDCMP : Digital Data Communication Message Protocol   DDD : Direct Distance Dialing   DDN : Defence Data Network   DDS : Dataphone Digital Services   DE : Discard Eligible   DECT : Digital Enhanced Cordless Technologies   DECT : Digital European Cordless Telephone   DES : Data Encryption Standard   DES : Destination End System   DFS : Distributed File Service   DFT : Discrete Fourier Transform   DHCP : Dynamic Host Configuration Protocol   DIC : Digital Interface Card   DIMM : Dual Inline Memory Module   DIN : Deutsches Institute for Normung   DOI : Digital Object Identifier   DIP : Dual Inline Package   DIS : Draft International Standard   DiffServ : Differentiated Service   DLC : Data Link Control   DLC : Digital Loop Carrier   DLCI : Data Link Connection Identifier   DLL : Data Link Layer   DLSw : Data Link Switching   DMA : Direct Memory Address   DMDD : Distributed Multiplexing Distributed Demultipexing   DMM : Digital Multi Meter   DMT : Discrete Multi-Tone   DN : Distribution Network   DNS : Domain Name System   DOI : Digital Object Identifier   DOCSIS : Data Over Cable Service Interface Specification   DOS : Disk Operating System   DP : Dial Pulse   DP : Data Processing   DPLL : Digital PLL   DPSK : Differential Phase Shift Keying   DQDB : Dual Queue Dual Bus (IEEE 80.6 Metropolitan Area Network protocol)   DQPSK : Differentially encoded Quadrature Phase Shift Keying   DR : Digit receiver   DR : Dynamic Range   DRAM : Dynamic Random Access Memory   DREN : Defence Research and Engineering Network   DRM : Digital Rights Management   DS : Differentiated Service   DS0 : Digital Signal Level 0   DS1 : Digital Siganal Level 1   DS3 : Digital Signal Level 3   DS : Direct Sequence   DSA : Differentiated Service Architecture   DSBM : Designated Subnet Bandwidth Manager   DSE: Distributed Single Layer Embedded Test Method   DSID : Destination Signaling Identifier   DSL : Digital Subscriber Line   DSL : Digital Subscriber Loop   DSLAM : Digital Subscriber Line Access Multiplexer   DSMA/CD : Digital Sense Multiple Access with Collision Detect   DSM-CC : Digital Storage Media-Control Commands   DSO : Document Services Office   DSP : Digital Signal Processing   DSR : Distributed Speech Recognition   DSRM : DAVIC System Reference Model   DSU : Digital Service Unit   DSVD : Digital Simultaneous Voice and Data   DTD : Document Type Definition   DTE : Data Terminal Equipment   DTMF : Dual Tone Multi Frequency   DTP : Distributed Transaction Processing   DTR : Data Terminal Ready   DTS : Distributed Time Service   DTTB : Digital Terrestrial Television Broadcasting   DVB : Digital Video Broadcast   DVD : Digital Video Disk   DVI : Digital Video Interactive   DVMRP : Distance Vector Multicast Routing Protocol   DWDM : Dense Wavelength Division Multiplexing   DWMT : Discrete Wavelet Multi-Tone   DXI : Data Exchange Interface       --------------------------------------------------------------------------------       E   --------------------------------------------------------------------------------       EACK : Extended ACKnowledgement   EAI : Enterprise Application Integration   EBCDIC : Extended Binary Coded Decimal Interchange Code   EBON : European Backbone Network   EC : European Community   ECC : Elliptic Curve Cryptosystem   ECC : Error Correcting Code   ECL : Emitter Coupled Logic   ECM : Entitlement Control Message   ECMA : European Computer Manufactures Association   ECSA : Exchange Carriers Standards Association   EDB : Enhanced Digital Broadcast   EDI : Electronic Data Interchange(전자문서 교환)   EDMS : Electronic Document Management System   EFCI : Explicit Forward Congestion Indicator   EDMS : Electronic Document Management System(전자문서 관리 시스템)   EGA : Enhanced Graphics Adapter   EGP : Exterior Gateway Protocol   EIA : Electronics Industry Association   EII : European Information Infrastructure   ELAN : Emulated LAN   ELF : Extremly Low Frequency   E-MAIL : Electronic Mail   EMC : Electromagnetic Compatibility   EMF : Electromagnetic Field   EMI : Electromagnetic Interference   EMR : Electromagnetic Radiation   EMS : Expanded Memory Specification   ENIAC : Electronic Numerical Integrater and Computer   EO : End Office   EOM : End of Message   EOT : End Of Transmission   EPD : Early Packet Discard   EPROM : Erasable Programmable Read-Only Memory   EROD : Erasable Rewritable Optical Disc   ERP : Enterprise Resource Planning   ESM : Enterprise Security Management   E-TACS : Extended Total Access Communication System   E-TDMA : Enhanced TDMA(with DSI-Digital Speech Interpolation)   ETAG : End Tag   ETE : End-to-End   ETRI : Electronics and Telecommunications Research Institute   ETSI : European Telecommunications Standards Institute   EV : Electron Volt   EWOS : European Workshop for Open System   EXM : Exit Message       --------------------------------------------------------------------------------       F   --------------------------------------------------------------------------------       FA : Forwarding Adjacency   FAQ : Frequently Asked Questions   FC : feedback Control   FCC : Federal Communications Commission   FCFS : First-Come First-Service   FCS : Fast Circuit Switching   FCS : Frame Ckeck Sequence   FDC : Floppy Disk Controller   FDD : Floppy Disk Drive   FDD : Frequency Division Duplex   FDDI : Fiber Distribution Data Interface   FDM : Frequency Division Multiplexing   FDMA : Frequency Division Multiple Access   FEBE : Far End Block Error   FEC : Forward Error Correction   FECN : Forward Explicit Congestion Notification   FEP : Front-End Processor   FER : frame Error Rate   FERF : Far End Receive Failure   FF : Flip Flop   FFOL : FDDI Follow-On LAN   FFT : Fast Fourier Transform   FH : Fiber Hub   FIFO : First In First Out   FILO : First In Last Out   FIN : FINish flag   FIPA : Foundation for Intelligent Physical Agent   FM : Frequency Modulation   FOCC : Forward Analog Control Channel   FOD : Fax On Demand   FORTRAN : FORmula TRANslation   FP : Floating Point   FPLMTS : Future Public Land Mobile Telecommunication System   FPU : Floating Point Unit   FR : Frame Relay   FRS : Frame Relay Service   FSK : Frequency Shift Keying   FTP : File Transfer Protocol   FTR : Full Text Retrieval‎   FTTB : Fiber To The Building   FTTC : Fiber To The Curb   FTTH : Fiber To The Home   FUNI : Frame User Network Interface   FTTO : Fiber To The Office   FVC : Forward Analog Voice Channel   FYI : For Your Information       --------------------------------------------------------------------------------   G   --------------------------------------------------------------------------------       GaAs : Gallium Arsenide   GAP : Generic Address Parameter   GATT : General Agreement on Tariffs and Trade   GBBC : GSM Baseband Codec   GCID : Global Call Identifier   GCID-IE : Global Call Identifier-Information Element   GCRA : Generic Cell Rate Algorithm   GDMO : Guidelines for Definition of Managed Objects   GDS : Global Directory Service   GFC : Generic Flow Control   GFLOPS : Billions of FLOating Point operations per Second   GFSK : gaussian frequency Shif Keying   GGP : Gateway to Gateway Protocol   GHz : Giga Hertz   GIF : Graphics Interchange Format   GII : Global Information Infrastructure   GIPS : Giga Instruction Per Second   GIS : Geographic Information System   GKS : Graphical Kernel System   GMPCS : Global Mobile Personal Communications System   GMPLS : Generalized Multi-Protocol Label Switching   GMSK : Gaussian-filtered Minimum Shift Keying   GND : GrouND   GOLD : GSM One-Chip Logic Device   GOSIP : Government Open Ssystems Interconnection Profile   GPIP : General Purpose Interface Bus   GPS : Global Positoning System   GRC : Generic Reference Configuration   GSM : Global System for Mobile Communications   GUI : Graphical User Interface   GW : Giga Watt       --------------------------------------------------------------------------------       H   --------------------------------------------------------------------------------       HAL : Hardwired Array Logic   HAN : Highly Advanced National project   HAN : Home ATM Network   HBT : Heterojucion Bipolar Transistor   HC : High speed Cmos   HCC : Host Call Control   HCI : Human Computer Interaction   HCPI : Higher Layer Protocol Identifier   HCT : High speed Cmos Ttl thresholds   HD : High density   HDB3 : High Density Bipolar 3   HDD : Hard Disk Drive   HDML : Handheld Device Markup Language   HDLC : High-level Data Link Control   HDSL : High bit rate Digital Subscriber Line   HDTP : Handheld Device Transport Protocol   HDTV : High Definition TeleVision   HDX : Half Duplex   HE : HeadEnd   HEC : Header Error Check   HEC : Header Error Control   HEL : Header Extension Length   HF : High Frequency   HFC : Hybrid Fiber Coaxial   HFR : Hybrid Fiber Radio   HFS : Hierachical File System   HGML : Hyper Graphics Markup Language   HIC : Hybrid Integrated Circuit   HIPPI : High Performance Parallel Interface   HLPI : Higher Layer Protocol Identifier   HLR : Home Location Register   HMSC : Human Machine Service Consumer   HOL : Head of Line   HPF : High Pass Filter   HPC : Hand Held PC   HSM : Hierarchical Storage Management   HSSI : High-Speed Serial Interface   HSTP : High Speed Transfer Protocol   HTML : HyperText Markup Language   HTTP : Hypertext Transfer Protocol   HW : Hardware   Hz : Hertz       --------------------------------------------------------------------------------       I   --------------------------------------------------------------------------------       IAA : Initial Address Acknowledgment   IAB : Internet Architecture Board   IAM : Initial Address Message   IANA : Internet Assigned Numbers Authority   IAR : Initial Address Reject   IBSP : Internet Business Solutions Provider   IC : Initial Cell Rate   IC : Intergrated Circuit   ICCB : Internet Control and Configuration Board   ICD : International Code Designator   ICMP : Internet Control Message Protocol   ICW : Interactive Courseware   IDB : Interactive Digital Broadcast   IDC : Internet Data Center   IDE : Intergrated Device Electronics   IDE : Intelligent Drive Electronics   IDL : interface Definition Language   IDSL : ISDN Digital Subscriber Line   IDU : Interface Data Unit   IE : Information Element   IEC : International Electrotechnical Committee   IEEE : Institute of Electrical and Electronics Engineers   IEN : Internet Engineering Notes   IESG : Internet Engineeting Steering Group   IETF : Internet Engineering Task Force   IF : Intermediate Frequency   IFF : Interfrequency Filter   IFFF : Inverse Fast Fourier Transform   IGMP : Internet Group Multicast Protocol   IGP : Interior Gateway Protocol   IIR : Infinite Impulse Response(filter)   IISP : Information Infrastructure   ILEC : Independent Local Exchange Carrier   ILMI : Interim Link Management Interface   ILMI : Interim Local Management Interface   IM : Intermodulation   IMD :Intermodulation Distortion   IME : Interface Management Entity   IMR : Intermodulation Distortion Ratio   IMT2000: International Mobile Telecommunications 2000   IMTC : International Multimedia Teleconferencing Cosortium   IN : Intelligent Network   INOC : Internet Network Operations Center   I/O : Input/Output   ION : Internetworking Over NBMA(Non-Broadcast Multi-Access)   IP : Intelligent Peripheral   IP : Internet Protocol   IP : Information Provider   IP : Intercept Point   IPCF : International Powerline Communications Forum   IPF : International Powerline Forum   IPng : Internet Protocol Next Generation   IPOA : Ip over ATM   IPv4 : Internet Protocol version 4   IPv6 : Internet Protocol version 6   I-PNNI : Integrated Private Network Network Interface   IPX : Internet Packet eXchange   IRC : Internet Relay Chat   IRTF : Internet Research Task Force   ISDB : Integrated Service Digital Broadcasting   ISDN : Integrated Services Data Network   IS-IS : Intermediate System to Intermediate System   ISM : Industrial scientific Medical(frequency band)   ISN : Information Systems Network   ISO : International Standard Organization   ISOC : Internet Society   ISP : Internet Service Provider   ISSLL : Integrated Services over Specific Link Layers   ISUP : ISDN User PART   IT : Information Technology   ITI : Internet Telephony Integration   ITS : Intelligent Traffic System   ITU-T : International Telecommunications Union - Telecommunications sector   IWF : Interworking Function   IWU : Interworking Unit       --------------------------------------------------------------------------------       J   --------------------------------------------------------------------------------       JDC : Japanese Digital Carrier   JIS : Japan Industrial Standard   JISC : Japan Industrial Standards Association   JPEG : Joint Photographic Expert Group   JSA : Japan Standards Association   JTAPI : Java Telephony Application Programmable Interface   JTC-1 : Joint Technical Committee-1   JUG : Joint Users Group       --------------------------------------------------------------------------------       K   --------------------------------------------------------------------------------       K : Kilo   KA : KiloAmpere   KBS : Korea Bureau of Standards   KBPS : KiloBits Per Second   KEV : Kilo Electron Volts   KII : Korea Information Infrastructure   KMS : Knowledge Management System   KOD : Karaoke on Demand   KORNET : KORea backbone NETwork for Internet Connectivity   KREONet : Korea Research Environment Open Network   KREN : Korea Education Network   KT : Korea Telecom   KTS : Key Telephone System   KVA : Kilo Volt Amperes   KWH : Kilo Watt Hours       --------------------------------------------------------------------------------       L   --------------------------------------------------------------------------------       L2TP : Layer 2 Tunneling Protocol   LAN : Local Area Network   LANE : LAN Emulation   LAPB : Link Access Procedure Balanced   LAPD : Link Access Procedure on D channel   LAT : Local-Area Transport   LATA : Local Access and Transport Area   LB : Leaky Bucket   LCD : Liquid Crystal Display   LCM : Long Code Mask   LD : LAN Destination   LDAP : Lightweight Directory Access Protocol   LD-CELP : Low Delay Code Exited Linear Prediction   LDP : Label Distribution Protocol   LE : LAN Emulation   LE-ARP : LAN Emulation Address Resolution Protocol   LEC : Local Exchange Carrier   LEC : LAN Emulation Client   LECID : LAN Emulation Client Identifier   LECS : LAN Emulation Configuration Server   LED : Light Emitting Diode   LEO : Low Earth Orbit   LES : LAN Emulation Server   LF : Loop Filter   LF : Low Frequency   LFSR : Linear Feedback Shift Register   LIFO : Last In First Out   LIJP : Leaf Initiated Joint Parameters   LIS : Logical IP Subnetwork   LIV : Link Integrity Verification   LLATMI : Lower Layer ATM Interface   LLC : Logical Link Control   LLC/SNAP : Logical Link Control/Subnetwork Access Protocol   LMCS : Local Multipoint Communication Service   LMDS : Local Multipoint Distribution Service   LMDS : Local Multipoint Distribution System   LMI : Layer Management Interface   LMP : Link Management Protocol   LNA : Local Numbering Area   LOC : Loss of Cell delineation   LOF : Loss of Frame   LOS : Line Of Sight   LOS : Loss of Signal   LP : Low Pass   LPC : Linear Predictive Coding   LPC : Line Per Channel   LPF : Low Pass Filter   LPLL : Linear PLL   LSA : Link State Advertisement   LSB : Least Significant Bit   LSD : Least Significant Digit   LSI : Large-Scale Integrated Circuit   LSP : Label Switched Path   LSP : Line Spectral Pair   LSR : Label Switching Router   LSR : Leaf Setup Request   LT : Lower Tester   LTE : Line Terminating Equipment   LTH : Length Field   LTV : Life Time Value   LW : Long Wave       --------------------------------------------------------------------------------       M   --------------------------------------------------------------------------------       M2M : Marketplace to Marketplace   MA : Maintenance and Adaptation   MAC : Medium Access Control   MAC : Mobile Attenuation Code   MAHO : Mobile Assisted Handoff   MAN : Metropolitan Area Network   MANET : Mobile Ad-hoc Network   MARS : Multicast Address Resolution Server   MB : MegaBytes   MBONE : Multicast backBONE   MBPS : Million Bytes Per Second   MBS : Maximum Burst Size   MBS : Mobile Broadband Service   MC : Motion Compensation   MCA : Multi Channel Access   MCIS : Microsoft Commertial Internet System   MCNS : Multimedia Cable Network System   MCR : Minimum Cell Rate   MCS : Multicast Server   MCTD : Mean Cell Transfer Delay   MCU : Master Control Unit   MDSB : Mobile Data Base Station   MDSL : Multi-rate Digital Subscriber Line   ME : Mapping Entity   MESFET : Metal Schottky FET   MFSK : Multi Frequency Shift Keying   MGCP : Media Gateway Control Protocol   MHEG : Multimedia/Hypermedia information coding Expert Group   MHP : Multimedia Home Platform   MHS : Message Handling System   MIB : Management Information Base   MID : Message Identifier   MIDI : Multiple Instrument Digital Interface   MIDI : Music Instrument Digital Interface   MILNET : MILitary NETwork   MIME : Muti-purpose Internet Mail Extensions   MIN : Mobile Identification Number   MIN : Multistage Interconnection Networks   MIPS : Millions of Instruments Per Second   MISP : Mobile Internet Service Provider   MIR : Maximum Information rate   MLPPP : MultiLink Point-to-Point Protocol   MMDS : Multichannel Multipoint Distribution Service   MMDS : Multichannel Multipoint Distribution System   MMF : Multimode Fiber   MMIC : Monolithic Microwave IC   MMU : Memory Management Unit   MMX : Multi-Media Extension   MOD : Movies on Demand   MOD : Music on Demand   MODEM : MOdulator and DEModulator   MOM : Message Oriented Middleware   MOS : Metal Oxide Semiconductor FET   MOSFET : Metal Oxide Semiconductor FET   MOSPF : Multicast extensions to OSPF   MPC : Multimedia Personal Computer   MPC : MPOA Client   MPEG : Moving Picture Experts Group   MPEG-TS : MPEG-Transport Stream   MPLS : Multi-Protocol Label Switching   MPOA : MultiProtocol Over ATM   MPS : MPOA Server   MPU : Maximum Transmission Unit   MPU : Micro Processing Unit   MPU : Main Processing Unit   MRCS : Multi-rate Circuit Switching   MRO : Maintenance Repair and Operating   MRP : Material Resource Planning   MS : Meta signaling   MS : Mobile Sation   MSA : Metropolitan Service Area   MSAP : Management Service Access Point   MSB : Most Significant Bit   MSC : Mobile Switching Center   MSD : Most Significant Digit   MS-DOS : MicroSoft Disk Operating System   MSIN : Mobile Station Identification Number   MSK : Minimum Shift Keying   MSN : Monitoring cell Sequence Number   MSO : Multiple System Operator   MSS : Maximum Segment Size   MSVC : Meta-signaling Virtual Channel   MT : Machine Translation   MT : Message Type   MTP : Message Transfer Part   MTP : Multicast Transport Protocol   MTS : Message Telecommunications Service   MTSO : Mobile Telephone Switching Office   MTU : Maximum Transmission Unit   MTU : Message Transfer Unit   MUSICAM : Masking Pattern Adapted Universal Sub-band Integrated Coding and Multiplexing   MVDS : Microwave Video Distribution System   MWIF : Mobile Wireless Internet Forum       --------------------------------------------------------------------------------       N   --------------------------------------------------------------------------------       NA : Network Aspects   NAK : Negative Acknowledgement   NAM : Number Assignment Module   NAMPS : Narrow Band AMPS   NANOG : North American Network Operators Group   NAP : Network Access Provider   NAPLPS : North American Presentation Level Protocol Syntax   NAS : Network Application Support   NAS : Network Access Server   NAS : Network Attached Storage   NASA : National Aeronautics and Space Administration   NAT : Network Address Translation   NBMA : Non-Broadcast Multiple Access   NBS : National Bureau of Standards   NC : Network Computer   NCDMA : Narrow Band CDMA   NCS : Network Computing System   NDIS : Network Driver Interface Specification   NE : Network Element   NetBIOS : Network Basic Input/Output System   NETBLT : NETwork Block Transfer   NFS : Network File System   NGI : Next Generation Internet   NHC : Next Hop Client   NHOP : Next Hop   NHRP : Next Hop Resolution Protocol   NHS : Next Hop Server   NI : Network Interconnect   NIC : Network Interface Card   NIC : Network Information Center   NID : Network Identification   NII : National Information Infrastructure   NiPC : Network Integrated PC   NIIT : National Information Infrastructure Testbed   N-ISDN : Narrowband ISDN   NIST : National Institute of Standards and Technology   NIU : Network Interface Unit   NLSP : NetWare Link State Protocol   NMS : Network Management System   NMT : Nordic Mobile Telecommunication System   NNI : Nederlands Normalisatie-Institute   NNI : Network to Network Interface   NNI : Network Node Interface   NNTP : Network News Transfer Protocol   NOC : Network Operations Center   NOI : Notice of Inquiry   NOS : Network Operating System   NP : Network Performance   NPC : Network Parameter Control   NPR : Noise Power Ratio   NREN : National Research and Educational Network   NRM : Network Resource Management   NRT-VBR : Non-Real_Time Variable Bit Rate   NRZ : Non Return to Zero   NRZI : Non Return to Zero Invert   NSAP : Network Service Access Point   NSF : National Science Foundation   NSFNET : National Science Foundation NETwork   NSP : Network Service Provider   NSR : Non-Source Routed   NSTC : National Science and Technology Council   NT : Network Terminator   NTB : Network Time Protocol   NTM : Network Traffic Management   NTT : Nippon Telegraph and Telephone Corporation   NTSC : National Television System Committee   NVOD : Near Video On Demand   NWN : National Wireless Network       --------------------------------------------------------------------------------       Q   --------------------------------------------------------------------------------       OA : Office Automation   OA&M : Operation, Administration and Maintenance   OASIS : Organization for the Advancement of Structured Information Standards   OCC : Optical Channel Controller   OC-n : Optical Carrier-level n   OCR : Optical Character Recognition   ODA : Open Document Architecture   ODBC : Open DataBase Connectivity   ODI : Open Data-link Interface   ODIF : Open Document Interchange Format   ODP : Open Distributed Processing   ODSI : Optical Domain Service Interconnect   OGIS : Open Geodata Interoperability Specification   OIF : Optical Interworking Forum   OLE : Object Linking and Embedding   OLI : Originating Line Information   OLTP : Online Transaction Processing   OMG : Object Management Group   ONA : Open Network Architecture   ONC : Optical Network Controller   ONU : Optical Network Unit   OOD : Object-Oriented Design   OODB : Object Oriented Data Base   OOF : Out of Frame   OOP : Object-Oriented Programming   OPCR : Originating Program Clock Reference   OQPSK : Offset Quadrature Phase Shift Keying   OS : Operating System   OSF : Open Software Foundation   OSI : Open Systems Interconnection   OSID : Origination Signaling identifier   OSP : Operator Service Provider   OSPF : Open Shortest Path First   OSS : Operator Service Switch   OTN : Optical Transport Network   OTP : Open Trading Protocol   OUI : Organization Unique Idenfifier   OUI : Organizational Unit Idenfifier   OXC : Optical Cross Connect       --------------------------------------------------------------------------------       P   --------------------------------------------------------------------------------       P2P : Peer to Peer   P3P : Platform for Privacy Preferences   PAD : Packet Assembler/Disassembler   PAL : Phase Alternation Line   PAM : Pulse Amplitute Modulation   PBX : Private Branch eXchange   PC : Personal Computer   PC : Priority Control   PC : Protocol Control   PCB : Printed Circuit Board   PCI : Peripheral Component Interconnect   PCI : Peripheral Component Interface   PCM : Pulse Code Modulation   PCMCIA : PC Memory Card International Association   PCN : Personal Communications Network   PCO : Point of Control and Observation   PCR : Peak Cell Rate   PCR : Program Clock Reference   PCS : Personal Communication Services   PCS : Personal Communication System   PCVC : Point to Point Switched Virtual Connections   PD : Packetization Delay   PD : Phase Detector   PDA : Personal Digital Assistant   PDH : Plesiochronous Digital Hierarchy   PDM : Pulse Duration Modulation   PDMS : Product Data Management System(제품 정보 시스템)   PDN : Public Data Network   PDU : packet Data Unit   PDU : Protocol Data Unit   PEM : Privacy Enchanced Mail   PERT : Program Eval‎uation and Review Technique   PF : Power Factor   PG : Power Gain   PGA : Power Grid Array   PHP : Personal Handy Phone(Japan)   PHS : Personal Hand phone System(Japan)   PHY : Physical Layer of the OSI model   PHY : Physical Layer   PIA : Peripheral Interface Adapter   PICS : Protocol Implementation Conformance Statement   PID : Protocol Identifier Governing Connection Types   PIM : Personal Information Manager   PIM : Protocol Independent Muticast   PIN : Positive Intrinsic Negative(diode)   PING : Packet InterNet Groper   PIXIT : Protocol Implementation eXtra Information for Testing   PL : Physical Layer   PL : Power Level   PLA : Programmable Logic Array   PLC : Power Line Communications   PLC : Programmable Logic Controller   PLCP : Physical Layer Convergence Protocol   PLD : Programmable Logic Device   PLL : Phase Locked Loop   PLM : Product Lifecycle Management   PLMN : Public Land Mobile Network   PLOA : Protocol Layers over ATM   PLPC : Physical Layer Convergence Protocol   PLT : Power Line Telecommunications   PM : Phase Modulation   PM : Physical Medium   PM : Pulse Modulation   PMD : Physical Layer Dependent sub-layer   PNA : Phoneline Network Alliance   PNG : Portable Network Graphics   PNNI : Private Network Node Interface   PNO : Public Network Operator   PNP : Positive Negative Positive   POD : Point Of Deployment   POH : Path Overhead   POI : Path Overhead Indicator   PON : Passive Optical Network   POP : Point of Presence   POP : Post Office Protocol   POS : Point of Sale   POTS : Plain Old Telephone Service   PPD : Partial Packet Discard   PPM : Pulse Per Million   PPP : Point-to-Point Protocol   PPS : Pulse Per Second   PRI : Primary Rate Interface   PRM : Partner Relation Management   PRN : Pseudo Random Noise   PROM : Programmable Read Only Memory   PSA : Professional Service Automation   PSD : Power Spectral Density   PSDN : Packet Switched Data Network   PSG : Programmable Sound Generator   PSK : Phase Shift Keying   PSS : Performance Support System   PSTN : Public Switched Telephone Network   PT : Payroad Type   PT : Pocket Telephone   PTF : Powerline Telecommunications Forum   PTI : Payload Type Identifier   PTN : Personal Telephone Number   PUP : Parc Universal Packet   PUREG : Power Up Registration   PVC : Permanent Virtual Channel   PVC : Permanent Virtual Circuit   PVCC : Permanent Virtual Channel Connection   PVP : Permanent Virtual Path   PVPC : Permanent Virtual Path Connection   PWM : Pulse Width Modulation       --------------------------------------------------------------------------------       Q   --------------------------------------------------------------------------------       QA : Quality Assurance   QAM : Quadrature Amplitute Modulation   QC : Quality Control   QD : Queuing Delay   QFC : Quantum Flow Control   QoS : Quality of Service   QPSK : Quadrature Phase Shift Keying   QPSX : Queue Packet and Synchronous Circuit Exchange       --------------------------------------------------------------------------------       R   --------------------------------------------------------------------------------       R&D : Research and Development   RA : Radiocommunication Assembly   RACE : Research and development in Advanced Communications technologies for Europe   R-ADSL : Rate-Adaptive Digital Subscriber Line   RAI : Remote Alarm Indication   RAID : Redundant Array of Independent Disk   RAM : Random Access Memory   RAMP : Reliable Adaptive Milticast Protocol   RARP : Reverse Address Resolution Protocol   RASP : Remote Antenna Signal Processor   RBB : Residential Broadband   RBOC : Regional Bell Operating Company   RC : Radio Control   RC : Routing Control   RCC : Radio Common Carrier   RCU : Remote Cell Unit   RD : Route Descriptor   RDF : Remote Decrease Factor   RDI : Remote Defect Idenfication   RDI : Remote Defect Indication   RDP : Reliable Datagram Protocol   RDS : Radio Data System   RECC : Reverse Analog Control Channel   RED : Random Early Detection   REL : Release Message   RELP : Residual-Excited Linear Predictive Coding   RF : Radio Frequency   RFC : Request For Comments   RFI : Radio Frequency Interference   RFIC : Radio Frequency IC   RGB : Red-Green-Blue   RI : Routing Information   RII : Routing Information Indicator   RIP : Routing Information Protocol   RITL : Radio-in-the-Loop   RISC : Reduced Instruction Set Computer   RJE : Remote Job Entry   RLC : Release Computer   RM : Resource Management   RMFP : Reliable Multicast Framing Protocol   RMP : Reliable Multicast Framework   RMS : Root Mean Square   ROADS : Running Out of ADress Space   ROM : Read Only Memory   ROLC : Routing Over Large Clouds   RPC : Remote Procedure Call   RPE-LTP : Regular Pulse Excitation-Long Term Prediction   RPM : Revolutions Per Minute   RSA : Rural Service Area   RSSI : Radio Signal Strength Indicator   RSVP : ReSource reserVation Protocol   RT : Real Time   RT : Remote Terminal   RTCP : RTP Control Protocol   RTD : Research & Technology Development   RTI : Real Time Interrupt   RTL : Resistor Transistor Logic   RTO : Round Trip time-Out   RTOS : Real Time Operating System   RTP : Realtime Transport Protocol   RTS : Request To Send   RTS : Residual Time Stamp   RTSP : Real Time Streaming Protocol   RTT : Round Trip Time   RT-VBR : Real-Time Variable Bit Rate   RU : Replication Unit   RVC : Reverse Analog Voice Channel       --------------------------------------------------------------------------------       S   --------------------------------------------------------------------------------       SA : Source MAC address   SAAL : Signaling ATM Adaptation Layer   SACK : Selective ACKnowledgement   SAN : Storage Area Network   SAP : Service Access Point   SAP : Session Announcement Protocol   SAR : Segmentation and Reassembly Sublayer   SAW : Surface Acoustic Wave   SAT : Supervisory Audio Tone   SB-ADPCM : Sub Band-Adaptive Pulse Code Modulation   SBC : Single Board Computer   SCCP : Signaling Connection Control Part   SCI : Science Citation Index   SCI : Serial Communication Interface   SCM : Station Class Mrk   SCP : Service Control Point   SCR : Sustainable Cell Rate   SCSI : Small Computer System Interface   SCSP : Server Cache Synchronization Protocol   SDCC : Supplementary Digital Color Code   SDH : Synchronous Digital Hierarchy   SDLC : Synchronous Data Link Control   SDML : Signed Document Markup Language   SDP : Session Description Protocol   SDU : Service Data Unit   SDR : Session DiRectory   SE : switching Element   SE : System Engineer   SEAL : Simple and Efficient Adaptation Layer   SECAM : Sequential Couleur a Memoire   SET : Secure Electronic Transaction   SF : Switching Fabric   SFS : System-level File Server   SG : Signal Ground   SGCP : Simple Gateway Control Protocol   SGM : Segmentation Message   SGML : Standard Generalized Markup Language   SGMP : Simple Gateway Monitoring Protocol   SGW : Service Gateway   SI : Service information   SI : System Integration   SID : Signaling Identifier   SID : System Identification   SIM : Subscriber Interface Module   SIMM : Single Inline Memory Module   SIO : Serial Input and Output   SIP : Session Initiation Protocol   SIP : Simple IP   SIPP : Simple Internet Protocol Plus   SIPP : SMDS Interface Protocol   SIR : Sustained Information Rate   SLA : Service Level Agreement   SLIP : Serial Line Internet Protocol   SMC : Sleep Mode Connection   SMDS : Switched Multi-megabit Data Services   SMF : Single Mode Fiber   SMIL : Synchronized Multimedia Integration Language   SMS : Short Message Service   SMS : Service Management System   SMTP : Simple Mail Transfer Protocol   SNA : Storage Area Network   SN : Sequence Number   SN : Service Node   S/N : Signal to Noise   SNA : System Network Architecture   SNAP : Sub Network Access Protocol   SNMP : simple Network Management Protocol   SNP : Sequence Number Protection   SNR : Signal to Noise Ratio   SO : Serail Output   SOA : Start Of Authority   SOH : Section Overhead   SOHO : Small Office Home Office   SONAR : SOund NAvigation and Ranging   SONET : Synchronous Optical NETwork   SP : Stack Pointer   SP : Signal Processor   SP : Switching Point   SPCS : Stored Program Controlled Switch   SPE : Synchronous Payload Envelope   SPF : Shortest Path First   SPI : Serial to Parallel Interface   SPID : Service Protocol Identifier   SPL : Sound Pressure Level   SPLL : Software PLL   SPS : Service Provider System   SPTS : Single Program Transport Stream   SQL : Structured Query Language   SR : Shift Register   SR : Source Routing   SRAM : Static Random Access Memory   SRC : Strategic Review Committee   SRF : Specifically Routed Frame   SRM : Scalable Reliable Multicast   SRT : Specifically Routing Transparent   SRTS : Synchronous Residual Time Stamp   SS : Spread Spectrum   SSB : Single Sideband   SSCF : Service Specific Coordination Protocol   SSCOP : Service Specific Connection Oriented Protocol   SSCS : Service Specific Convergence Sublayer   SSD : Share Secret Data   SSL : Secure Socket Layer   SSP : Service Switching Point   SST : Secure Transaction Technology   ST : Segment Type   ST : Signaling Tone   ST-II : Stream Transport protocol-II   STB : Set Top Box   STE : Section Terminating Equipment   STE : Spanning Tree Explorer   STM : Synchronous Transfer Mode   STP : Signaling Transfer Point   STP : Shielded Twisted Pair   STS : Synchronous Time Stamp   STS-n : Synchronous Transport Signal-n   STU : Set Top Unit   SUT : System Under Test   SVB : switched Video Broadcasting   SVC : Switched Virtual Channel   SVC : Switched Virtual Connection (ATM)   SVCI : Switched Virtual Circuit Identifier   S-VGA : Super Video Graphics Array   SVP : Switched Virtual Path   SW : Short Wave   SWG : Sub-Working Group   SWR : Standing Wave Ratio   SWS : Silly Window Syndrome   SYN : SYNchronizing segment       --------------------------------------------------------------------------------       T   --------------------------------------------------------------------------------       TA : Terminal Adapter   TACS : Total Access Communication System   TAPI : Telephony Application Programmable Interface   TASI : Time Assignment Speech Interpolation   TB : Tranparent Bridging   TC : Transaction Capabilities   TC : Tranmission Convergence   TCAP : Transaction Capabilities Application Part   TCI : Test Cell Input   TCO : Test Cell Output   TCP : Transmission Control Protocol   TCP/IP : Transmission Control Protocol/Internet Protocol   TCS : Transmission Convergence Sublayer   TCXO : Temperature-Compensated Crystal Oscillator   TD : Tunnel Diode   TDD : Time Division Duplex   TDJ : Transfer Delay Jitter   TDM : Time Division Multiplexing   TDMA : Time Division Multiple Access   TDX : Time Division Switching system   TE : Terminal Equipment   TEI : Terminal Endpoint Identifier   TFTP : Trivial File Transfer Protocol   THD : Total Harmonic Distortion   TIA : Telecommunication Industry Association   TIPS : Tera Instruction Per Second   TLI : Transport Layer Interface   TLV : Type/Length/Value   TM : Traffic Management   TMN : Telecommunications Management Network   TMP : Test Management Protocol   TMSWG : Traffic Management Sub-Working Group   TMTP : Tree-based Multicast Transport Protocol   TNS : Transit Network Selection   TO : Telecommunications Operator   TOLR : Transmit Objective Loudness Rating   TOPS : Traffic Operator Position System   TOS : Type Of Service   TPCC : Third Party Call Control   TPEG : Transport Protocol Experts Group   TPON : Telephony over Passive Optical Network   TR : Transmitter   TRPB : Truncated Reverse Path Broadcast   TRS : Telecommunications Relay Services   TRS : Trunked Radio Service   TS : Time Sharing   TS : Time Stamp   TS : Transport Stream   TS : Time Slot   TSAP : Transport Service Access Point   TSPS : Traffic Service Position System   TTA : Telecommunications Technology Committee   TTL : Time To Live   TTL : Transistor Transistor Logic   TTS : Text-to-Speech conversion   TV : TeleVision       --------------------------------------------------------------------------------       U   --------------------------------------------------------------------------------       UA : User Agent   UART : Universal Asynchronous Receiver and Transmitter   UBR : Unspecified Bit Rate   UCT : Universal Coordinated Time   UDP : User Datagram Protocol   UDSL : Unidirectional HDSL(High data rate Digital Subscriber Line)   UE : User Element   UHF : Ultra High Frequency   UHV : Ultra High Vacuum   UI : User Interface   UIFN : Universal International Freephone Number   uKorea : Ubiquitous Korea   ULP : Upper Layer Protocol   UMA : Universal Multimedia Access   UMS : Unified Messaging System   UMTS : Universal Mobile Telecommunication Service   UNI : User Network Interface   UP : User Plane   UPC : Usage Parameter Control   UPS : Uninterruptible Power Supply   UPT : Universal Personal Telecommunications   URL : Uniform Resource Locator   URSI : Union Radio Scientifique International   UT : Upper Tester   UTC : Universal Time Code   UTOPIA : Universal Test & Operations PHY Interface for ATM   UTP : Unshielded Twisted Pair   UUCP : Unix to Unix Copy Program   UUCP : Unix-to-Unix Communication Protocol   UV : UltraViolet   UVA : UltraViolet Alpha   UVB : UltraViolet Beta       --------------------------------------------------------------------------------       V   --------------------------------------------------------------------------------       VA : Volt Ampere   VAN : Value Added Network   VASP : Value Added Service Provider   VAT : Visual Audio Teleconferencing   vBNS : very high performance Backbone Network Service   VC : Virtual Connection (ATM)   VCH : Virtual Channel Handler   VCC : Virtual Channel Connection   VCI : Virtual Channel Identifier   VCI : Virtual Circuit Identifier   VCI : Virtual Connection Identifier   VCO : Voltage-Controlled Oscillator   VCR : Video Cassette Recorder   VCVS : Voltage-Controlled Voltage Source(filter)   VDT : Video Display Terminal   VDSL : Very high bit rate Digital Subscriber Line   VESA : Video Electronics Standards Association   VFW : Video Graphics Windows   VGA : Video Graphics Array   VHDL : Very High Speed Integrated Circuit Hardware Descriptive Language   VHF : Very High Frequency   VHS : Video Home System   VIC : Video Conference   VIP : Video Information Provider   VLAN : Virtual Local Area Network   VLB : VESA Local Bus   VLF : Very Low Frequency   VLR : Visitor Location Register   VLSI : Very Large Scale Integration   VML : Vector Markup Language   VMTP : Versatile Message Tranfer Protocol   VOD : Video On Demand   VP : Virtual Path   VPI : Virtual Path Identifier   VPIM : Voice Profile for Internet Messaging   VPH : Virtual Path Handler   VPN : Virtual Private Network   VP/VC : Virtual Path, Virtual Circuit   VPC : Virtual Path Connection   VPCI/VCI : Virtual Path Connection Identifier/Virtual Channel Identifier   VPI : Virtual Path Identifier   VQ : Vector Quantization   VR : Virtual Reality   VRAM : Video Random Access Memory   VRML : Virtual Reality Modeling Language   VRTP : Virtual Reality Transfer Protocol   VS : Virtual Scheduling   VSAT : Very Small Aperture satellite Terminals   VSAT : Very Small Aperture Terminal   VSELP : Vector Sum Excited Linear Predictive Coding(IS-54 speech encoding)   VSWR : Voltage Standing Wave Ratio   VT : Vertual Terminal       --------------------------------------------------------------------------------       w   --------------------------------------------------------------------------------       W3C : World Wide Web Consortium   WAIS : Wide Area Information Server   WAN : Wide Area Network   WAP : Wireless Application Protocol   WARC : World Administrative Radio Conference   WAS : Web Application Server   WATS : Wide Area Telecommunications Service   WBI : Web Based Instruction   WCPE : Wireless Customer Premises Equipment   WD : Working draft   WDM : Wavelength Division Multiplexing   WG : Working Group   WFQ : Weighted Fair Queuing   WLAN : Wireless LAN   WLL : Wireless Local Loop   WML : Wireless Markup Language   WORM : Write Once Read Many   WP : World Processor   WS : Workstation   WSCI : Web Service Choreography Interface   WSCL : Web Service Conversation Language   WSFL : Web Service Flow Language   WTO : World Trade Organization   WWW(W3) : World Wide Web   WYSIWYG : What You See Is What You Get       --------------------------------------------------------------------------------       X       --------------------------------------------------------------------------------       XDR : eXternal Data Representation   XML : eXtensible Markup Language   XMTR : Transmitter   XNS : Xerox Network System   X/OPEN : UNIX-Open Systems   XOR : Exclusive-OR gate   XTALK : Crosstalk   XSL : eXtensible Stylesheet Language   XTP : eXpress Transfer Protocol       --------------------------------------------------------------------------------       Y   --------------------------------------------------------------------------------       Y2k : Year 2000   YAG : Yttrium Aluminum Garnet   YIG : Yttrium Iron Garnet       --------------------------------------------------------------------------------       Z   --------------------------------------------------------------------------------       ZD : Zero Defects   ZIP : Zigzag Inline Package   ZM : Zone Marker   Z-series : ITU-T Recommendation Z series <a href="javascript:checkVirus('grpid%3DUSWE%26fldid%3Do0v%26dataid%3D121%26fileid%3D1%26regdt%3D20111221231501&url=http%3A%2F%2Fcfile259.uf.daum.net%2Fattach%2F18468B3D4EF1E9BF2DF2A0')"><img src="https://t1.daumcdn.net/daumtop_deco/icon/icon.hanmail.net/editor/p_hwp_s.gif?rv=1.0.1" border="0" alt="첨부파일" class="vam"/> 정보통신용어.hwp</a>