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somthing

        Help!  

Acronym
Meaning
JISC   Joint Information Systems Committee  
🗑
Internet   Networks to other organisations  
🗑
Intranet   Communications to services within an organisation  
🗑
PAN   Personal Area Network  
🗑
LAN   Local Area Network  
🗑
WAN   Wide Area Network  
🗑
MAN   Metropolitan Area Network  
🗑
AAL   ATM Adaptation Layer  
🗑
AAP   Alternate Access Provider  
🗑
AAR   Automatic Alternate Routing  
🗑
ABATS   Automatic Bit Access Test System  
🗑
ABM   Asynchronous Balanced Mode  
🗑
ABR   Available Bandwidth Rate  
🗑
ABR   Available Bit Rate  
🗑
AC   Access Control  
🗑
ACD   Automatic Call Distribution  
🗑
ACF   Access Coordination Function  
🗑
ACF   Advanced Communications Function  
🗑
ACF   Access Control Field  
🗑
ACK   Acknowledgement  
🗑
ACM   Address Complete Message  
🗑
ACO   Automatic Cut Off  
🗑
ACSE   Association Control Service Element  
🗑
ADC   Analog to Digital Converter  
🗑
ADCCP   Adv Data Comm Control Procedure  
🗑
ADM   Add/Drop Multiplexer  
🗑
ADM   Asynchronous Disconnected Mode  
🗑
ADM   Add/Drop Multiplexer  
🗑
ADM 3X   DS3 Add-Drop Multiplex  
🗑
ADPCM   Adaptive Differential Pulse Code Modulation  
🗑
ADPCM   Adaptive Differential Pulse Code Mod.  
🗑
ADSL   Asymmetric Digital Subscriber Line  
🗑
ADSS   All Dielectric Self-Supporting  
🗑
ADTS   Automated Digital Terminal Systems  
🗑
AFPS   Automatic Facility Protection Switching  
🗑
AFSK   Audio Frequency Shift Keying  
🗑
AIN   Advanced Intelligent Network  
🗑
AIS   Alarm Indication Signal  
🗑
AIS-L   Alarm Indication Signal - Line  
🗑
AIS-P   Alarm Indication Signal - Path  
🗑
AIS-V   Alarm Indication Signal - Virtual (Tributary)  
🗑
AIU   Analog Interface Unit  
🗑
AL   Access Link  
🗑
ALI   Automatic Location Indication  
🗑
ALIT   Automatic Line Insulation Test  
🗑
ALPS   Automatic Loop Protection Switching  
🗑
ALS   Active Line State  
🗑
AMA   Automatic Message Accounting  
🗑
AMI   Alternate Mark Inversion  
🗑
AMPS   Advanced Mobile Phone Service  
🗑
AN   Access Node  
🗑
ANC   Access network Controller  
🗑
ANI   Automatic Number Identification  
🗑
ANM   ANswer Message  
🗑
ANR   Auto Network Routing  
🗑
ANS1   Abstract Syntax Notation 1  
🗑
ANSI   American National Standards Institute  
🗑
AOC   ADSL overhead control channel  
🗑
AON   All Optical Network  
🗑
AP   Access Point  
🗑
AP   Action Point  
🗑
APDU   Application Protocol Data Unit  
🗑
API   Application Programming Interface  
🗑
APPC   Advanced Program to Program Comm  
🗑
APR   Alarm Processing Remote  
🗑
APS   Automatic Protection Switching  
🗑
ARD   Automatic Ring Down  
🗑
ARP   Address Resolution Protocol  
🗑
ARQ   Automatic Retransmission Request  
🗑
AS56   Accunet Switched 56  
🗑
ASB   Application Specific Bits  
🗑
ASCII   American Std Code for Info Interchange  
🗑
ASDS   Accunet Sprectrum of Digital Device Svc  
🗑
ASE   Applications Service Element  
🗑
ASN.1   Abstract Syntax Notation One  
🗑
ASP   Application Service Provider  
🗑
AT   Access Tandems  
🗑
ATD   Asynchronous Time Division  
🗑
ATM   Asynchronous Transfer Mode  
🗑
ATM-LI   ATM Link Identifier  
🗑
ATMM   ATM Layer Management  
🗑
ATM-PCI   ATM Protocol Control Information  
🗑
ATM-SDU   ATM Service Data Unit  
🗑
ATU-C   ADSL Transceiver Unit - Central office end  
🗑
ATU-R   ADSL Transceiver Unit - Remote terminal end  
🗑
AU   Administrative Unit  
🗑
AUG   AU Group  
🗑
AUI   Attachment Unit Interface  
🗑
AVS   AVailable Seconds  
🗑
B   Bearer Channel  
🗑
B3ZS   Bipolar 3 Zero Substitution/Suppression  
🗑
B6ZS   Bipolar 6 Zero Substitution  
🗑
B8ZS   Bipolar 8 Zero Substitution  
🗑
B8ZS   Bipolar 8 Zero Suppression  
🗑
BA   Buffer Allocation  
🗑
BAF   Bellcore AMA Format  
🗑
BAsize   Buffer Allocation  
🗑
Bc   Committed Burst Size  
🗑
BC   Bearer Capability  
🗑
BCC   Block Check Code  
🗑
BCD   Binary Coded Decimal  
🗑
BCI   Bit Count Integrity  
🗑
BCM   Bit Compression Multiplexer  
🗑
BCN   BeaCoN  
🗑
B-CPE   Broadband Customer Premises Equipment  
🗑
BCS   Binary Synchronous Communication  
🗑
BDCS   Broadband Digital Cross-connect Sys  
🗑
BECN   Backward Explicit Congestion Notification  
🗑
BER   Bit Error Rate  
🗑
BERT   Bit Error Rate Tester  
🗑
BES   Bursty Errored Second  
🗑
BEtag   Beginning/End Tag  
🗑
BGP   Border Gateway Protocol  
🗑
BIB   Backward Indicator Bit  
🗑
BICI   Broadband InterCarrier Interface  
🗑
B-ICI   Broadband Isdn InterCarrier Interface  
🗑
BIP   Bit Interleaved Parity  
🗑
BIP-N   Bit Interleaved Parity - N  
🗑
BISDN   Broadband Integrated Services Digital Network  
🗑
BISYNC   Binary Synchronous Communications  
🗑
BIU   Basic Information Unit  
🗑
BLER   Block Error Rate  
🗑
BMS   Bandwidth Management System  
🗑
BNS   Broadband Network Switch  
🗑
BOC   Bell Operating Company  
🗑
BOM   Beginning of Message  
🗑
BOP   Bit Oriented Protocol  
🗑
BORSCHT   Battery feed, Overvoltage protection, Ringing, Signalling, Hybrid, & Testing  
🗑
BPOP   Building Point of Presence  
🗑
BPS   Bits Per Second  
🗑
BPV   Bipolar Violation  
🗑
BRA   Basic Access Rate  
🗑
BRI   Basic Rate Interface (ISDN)  
🗑
BRITE   Basic Rate Interface Transmission Extension  
🗑
BRT   Broadband Remote Terminal  
🗑
BRZ   Bipolar Return to Zero  
🗑
BSC   Base Station Controller  
🗑
BSC   Binary Synchronous Communications  
🗑
BSN   Backward Sequence Number  
🗑
BSP   Bell System Practice  
🗑
BSRF   Basic System Reference Frequency  
🗑
BSS   Base Station Subsystem  
🗑
BSS   Basic Service Set  
🗑
BSS   Broadband Switching System  
🗑
BTAG   Beginning of TAG  
🗑
BTS   Base Station Transceiver  
🗑
BWB   Bandwidth Balancing  
🗑
C/R   Command/Response  
🗑
C/R   Control/Response - indication bit  
🗑
C/R Bit   Command Response Bit  
🗑
CAC   Connectionless Admission Control  
🗑
CAL   Customer Access Line  
🗑
CAN   Campus-Area Network  
🗑
CAP   Carrierless Amplitude Phase (modulated)  
🗑
CAP   Competitive Access Provider  
🗑
CAS   Channel Associated Signaling  
🗑
CASE   Common Application Service Elements  
🗑
CATV   Cable Television  
🗑
CBCU   Centralized Broadband Control Unit  
🗑
CBO   Continuous Bit Stream Oriented  
🗑
CBQ   Class-Based Queuing  
🗑
CBR   Constant Bit Rate  
🗑
Cc   Committed Burst Size  
🗑
CC   Call Control  
🗑
CCC   Clear Channel Capability  
🗑
CCH   Connections per Circuit-hr in Hundreds  
🗑
CCIS   Common Channel Interoffice Signaling  
🗑
CCITT   Comite Consultatif Internationale Telegraphique et Telephonique  
🗑
CCM   Customer Control & Mgmt  
🗑
CCR   Customer Controlled Reconfiguration  
🗑
CCR   Commitment, Concurrency, & Recovery  
🗑
CCS   Common Channel Signaling  
🗑
CCS   Hundred Call Seconds  
🗑
CCS   Common Channel Signaling  
🗑
CCSA   Common Control Switching Arrangement  
🗑
CCU   Common Control Unit  
🗑
CD   Count Down  
🗑
CDMA   Code Division Multiple Access  
🗑
CDO   Community Dial Office  
🗑
CDPD   Cellular Digital Packet Data  
🗑
CDV   Cell Delay Variation  
🗑
CE   Connection Element  
🗑
CEP   Connection End Point  
🗑
CEPT   Conference of European Postal Telecom  
🗑
CES   Circuit Emulation Service  
🗑
CEV   Controlled Environment Vault  
🗑
CF   Coin First  
🗑
CFA   Carrier Failure Alarm  
🗑
CGA   Carrier Group Alarm  
🗑
CH   Cell Header  
🗑
CHTML   Compact Hyper Text Markup Language  
🗑
CI   Customer Installation  
🗑
CI   Continuation Identifier  
🗑
CIB   CRC Indication Bit  
🗑
CID   Craft Interface Device  
🗑
CIR   Committed Information Rate  
🗑
CIR   Cell Insertion Ratio  
🗑
CIU   Communications Interface Unit  
🗑
CL   Common Language  
🗑
CLEC   Competitive Local Exchange Carrier  
🗑
CLIR   Calling Line Identity Restriction  
🗑
CLIST   Command List  
🗑
CLLM   Consolidated Link Layer Mgmt  
🗑
CLN   ConnectionLess Network  
🗑
CLNP   ConnectionLess Network Protocol  
🗑
CLNS   ConnectionLess Network Service  
🗑
CLP   Cell Loss Priority (CLP Bit)  
🗑
CLS   Connectionless Service  
🗑
CLTS   ConnectionLess Transport Service  
🗑
CMD   Circuit Mode Data  
🗑
CMDR   Command Reject  
🗑
CMI   Code Mark Inversion  
🗑
CMIP   Common Management Info Protocol  
🗑
CMIS   Common Mgmt Info Service  
🗑
CMISE   Common Management Information Service Element  
🗑
CMOT   CMIP over TCP/IP  
🗑
CMT   Connection Management  
🗑
CND   Calling Number Delivery  
🗑
CNF   Confirmed  
🗑
CNM   Customer/Communications Network Management  
🗑
CO   Central Office/Connection Oriented Svc  
🗑
COC   Central Office Connection  
🗑
COCF   Connection Oriented Converge Function  
🗑
CODEC   COder-DECoder  
🗑
COFA   Change of Frame Alignment  
🗑
CO-LAN   Central Office Local Area Network  
🗑
COM   Continuation of Msg  
🗑
COMPANDER   COMpressor/exPANDER  
🗑
CON   Concentrator  
🗑
CON   Connection Oriented Network  
🗑
CONP   Connection Network Protocol  
🗑
CONS   Connection-Oriented Network Services  
🗑
COPS   Common Open Policy Service  
🗑
CORBA   Common Object Request Broker Architecture  
🗑
COS   Class of Service  
🗑
COT   Central Office Terminal  
🗑
CP   Cell Payload  
🗑
CP   Customer Premises  
🗑
CP   Central Processor  
🗑
CPCS   Common Part Convergence Sublayer  
🗑
CPE   Customer Premise Equipment  
🗑
CPI   Computer-PBX Interface  
🗑
CPI   Common Parti Indicator  
🗑
C-PLANE   Control Plane  
🗑
CPMI   Customer Proprietary Network Info  
🗑
CPN   Customer Premises Node  
🗑
CPNI   Customer Proprietary Network Information  
🗑
CPP   Calling Party Pays  
🗑
CPS   Customer Premises System  
🗑
CPU   Central Processor Unit  
🗑
CR   Call Reference  
🗑
CRC   Cyclic Redundancy Check  
🗑
CRF   Connection Related Function  
🗑
CRIS   Customer Records Info System  
🗑
CRS   Cell relay Service  
🗑
CRV   Call Reference Value  
🗑
CRV   Coding Rule Violation  
🗑
CS   Convergence Sublayer  
🗑
CSA   Canadian Standards Association  
🗑
CSA   Carrier Service Area  
🗑
CSAP   Core Service Access Point  
🗑
CSC   Common Signaling Channel  
🗑
CSDU   Core Service Data Unit  
🗑
CSH   Convergence Sublayer Header  
🗑
CSI   Convergence Sublayer Indicator  
🗑
CSMA/CD   Carrier Sense Multiple Access/Collision Detect  
🗑
CSPDN   Circuit Switched Public Data Network  
🗑
CS-PDU   Convergence Layer PDU  
🗑
CST   Convergence Sublayer Trailer  
🗑
CSU   Channel Service Unit  
🗑
CT   Channel Termination  
🗑
CT   Computer Telephony  
🗑
CTS   Clear to Send  
🗑
CTS   Customer Test Service  
🗑
CU   Channel Unit  
🗑
CUG   Closed User Group  
🗑
CV   Coding Violation  
🗑
CVSD   Continuously Variable Slope Delta Modulation  
🗑
CWC   Center Weighted Control  
🗑
CXR   Carrier  
🗑
D   Delta or Data  
🗑
D/I   Drop and Insert  
🗑
D3   Third generation channel bank (24 channels on T1)  
🗑
D4   Fourth generation channel bank (48 channels on 2T1's or T1C)  
🗑
DA   Destination Address  
🗑
DACS   Digital Access & Cross-Connect System  
🗑
DAS   Dual Attached Station  
🗑
DASD   Direct Access Storage Device  
🗑
DASS   Digital Access Signaling System  
🗑
DAVIC   Digital Audio Video Council  
🗑
dB   deciBell  
🗑
dBm   dB relative to one milliwatt  
🗑
DBN   Dial-Back Number  
🗑
dBrn   dB relative to noise  
🗑
dBrnc   dB relative to noise (C-Notch or C-Message)  
🗑
DBS   Direct Broadcast Satellite  
🗑
DCA   Distributed Comm Channel  
🗑
DCB   Digital Channel Bank  
🗑
DCC   Data Comm Channel  
🗑
DCC   Digital Cross Connect  
🗑
DCC   Direct Connect Card  
🗑
DCCX   Direct Circuit Control Exchange  
🗑
DCE   Data Circuit-terminating Equipment  
🗑
DCE   Data Communications Equipment  
🗑
DCF   Distributed Coordination Function  
🗑
DCN   Data Communications Network  
🗑
DCS   Digital Cross-connect System  
🗑
DDCMP   Digital Data Comm Msg Protocol  
🗑
DDD   Direct Distance Dialing  
🗑
DDS   Dataphone Digital Service (registered trademark of AT&T C0.)  
🗑
DDS   Digital Data Service  
🗑
DDS/SC   Digital Data Svc w/ Secondary Channel  
🗑
DDSD   Delay Dial Start Dial  
🗑
DE   Discard Eligibility  
🗑
DF   Distributing Frame  
🗑
DFC   Data Flow Control  
🗑
DFL   Distributed Feedback Laser  
🗑
DFRI   Datacom Reference Frame Input  
🗑
DHCP   Dynamic Host Configuration Protocol  
🗑
DID   Directed Inward Dialing  
🗑
DL   Data Link  
🗑
DLC   Data Link Connection  
🗑
DLC   Digital Loop Carrier  
🗑
DLCI   Data Link Connection Identifier  
🗑
DM   Disconnected Mode  
🗑
DMI   Digital Multiplex Interface  
🗑
DMPB   Digital Multipoint Bridging  
🗑
DMPU   Derived MAC Protocol Data Unit  
🗑
DMS   Digital Multiplex System  
🗑
DMT   Discrete Multitone  
🗑
DN   Directory Number  
🗑
DNIC   Data Network Identification Code  
🗑
DNIC   Data Network Interface (2B+D ISDN)  
🗑
DNIC   Data Network Interface Circuit  
🗑
DNIS   Dialed Number Identification Service  
🗑
DNS   Domain Name System  
🗑
DOCSIS   Data Over Cable Service Interface Specification  
🗑
DoV   Data Over Voice  
🗑
DP   Dial Pulse  
🗑
DPA   Distributed Power Architecture  
🗑
DPBX   Digital Private Brance Exchange  
🗑
DPC   Destination Signal Transfer Point Code  
🗑
DPCM   Differential Pulse Code Modulation  
🗑
DPDU   Data (link) Protocol Data Unit  
🗑
DPL   Digital Power Line  
🗑
DPNSS   Digital Private Network Signaling System  
🗑
DPO   Dial Pulse Originate  
🗑
DPT   Dial Pulse Terminate  
🗑
DPT   Dynamic Packet Transport  
🗑
DQDB   Distributed Queue Dual Bus  
🗑
DS-0   Digital Signal level Zero (64Kbps data/voice channel)  
🗑
DS-1   Digital Signal Level One (1.544 Mbps  
🗑
DS-2   Digital Signal Level Two (6.312 Mbps  
🗑
DS-3   Digital Signal Level Three (44.736 Mbps  
🗑
DSAP   Destination Service Access Point  
🗑
DSG   Default Slot Generator  
🗑
DSI   Digital Speech Interpolation  
🗑
DSL   Digital Subscriber Line  
🗑
DSLAM   Digital Subscriber Line Access Multiplexer  
🗑
DSP   Digital Signal Processor  
🗑
DSP   Display System Protocol  
🗑
DSS1   D-channel Signaling System 1  
🗑
DSSS   Direct Sequence Spread Spectrum  
🗑
DSU   Digital Service Unit  
🗑
DSU   Data Service Unit  
🗑
DSX   Digital Signal Cross-connect  
🗑
DT   Data Transfer  
🗑
DTAU   Digital Test Access Unit  
🗑
DTE   Data Terminal Equipment  
🗑
DTF   Dial Tone First  
🗑
DTF   Digital Transmission Facility  
🗑
DTI   Digital Trunk Interface  
🗑
DTMF   Dual Tone Multiple Frequency  
🗑
DTR   Data Terminal Ready  
🗑
DTS   Digital Terminal Systems  
🗑
DTU   Data Terminal Unit  
🗑
DTX-1   Digital Sig Cross-connect - Level 1 (DS1)  
🗑
DUP   Data User Part  
🗑
DVI   Digital Video Interactive  
🗑
DVI   Digital Video Interleaved  
🗑
DWDM   Dense Wavelength Division Multiplexing  
🗑
DX   Duplex  
🗑
DXC   Digital Cross Connect  
🗑
DXI   Data Exchange Interface  
🗑
E-1   European T-1" (DS-1) at 2.048 Mbps"  
🗑
EA   Extended Address (bit)  
🗑
EAI   Enterprise Application Integration  
🗑
EBCDIC   Extended Binary Coded Decimal Information Code  
🗑
EC   Echo Canceling  
🗑
EC   Error Correction  
🗑
ECC   Error Checking Code  
🗑
ECN   Explicit Congestion Notification  
🗑
EC-n   Electrical Carrier (e.g., EC-1)  
🗑
ECSA   Exchange Carriers Standards Assoc  
🗑
ED   Ending Delimiter  
🗑
EDFA   Erbium-Doped Fiber Amplifier  
🗑
EDI   Electronic Data Interchange  
🗑
EDSX   Electronic Digital Signal Cross-Connect  
🗑
EFCI   Explicit Forward Congestion Indication  
🗑
EFD   Event Forwarding Discriminator  
🗑
EFS   Error Free Seconds  
🗑
EGP   Exterior Gateway Protocol  
🗑
ELEC   Ethernet Local Exchange Carrier  
🗑
ELFEXT   Equal Level Far End Crosstalk  
🗑
EM   Element Manager  
🗑
EMI   Electromagnetic Interference  
🗑
EML   Element Management Layer  
🗑
EMS   Element Management System  
🗑
ENQ   Enquiry  
🗑
EOC   Embedded Operations Channel  
🗑
EOC   Embedded Overhead Channel  
🗑
EOM   End of Message  
🗑
EOT   End of Transmission  
🗑
EPSCS   Enhanced Private Switch Controlled System  
🗑
EPSCS   Enhanced Pvt Switched Comm Service  
🗑
ERL   Echo Return Loss  
🗑
ERM   Explicit Rate Marketing  
🗑
ERS   Errored Second  
🗑
ES   Errorred Second  
🗑
ES   End System  
🗑
ESB   Errored Second type B  
🗑
ESF   Extended Superframe  
🗑
ESFDL   Extended Super Frame Data-Link  
🗑
ESG   Enhanced Service Gateway  
🗑
ESS   Electronic Switching System  
🗑
ET   Exchange Termination  
🗑
ETAG   End of TAG  
🗑
ETN   Electronic Tandem Network  
🗑
ETO   Equalized Transmit Only  
🗑
ETSI   European Telecommunications Standards Institute  
🗑
ETX   End of Text  
🗑
EXZ   Excess Zeros  
🗑
F   Final/Framing  
🗑
FAD   Frame Assembler/Disassembler  
🗑
FADU   File Access Data Unit  
🗑
FAS   Frame Alignment Signal  
🗑
FAW   Frame Alignment Word  
🗑
FB   Framing Bit  
🗑
FBWA   Fixed Broadband Wireless Access  
🗑
FC   Frame Control  
🗑
FCC   Federal Communications Commission  
🗑
FCOT   Fiber optic Central Office Terminal  
🗑
FCS   Frame Check Sequence  
🗑
FDDI   Fiber Distributed Data Interface  
🗑
FDI   Feeder Distribution Interface  
🗑
FDL   Facilities Data Link  
🗑
FDM   Frequency Division Multiplexing  
🗑
FDMA   Frequency Division Multiple Access  
🗑
FE   Frame synchronization bit error Event  
🗑
FEA   Far End Alarm  
🗑
FEAC   Far End Alarm and Control  
🗑
FEBE   Far End Block Error  
🗑
FEBE-f   Far End Block Error Count - fast data  
🗑
FEBE-i   Far End Block Error Count - interleaved data  
🗑
FEC   Forward Error Correction  
🗑
FECC-f   Forward Error Correction Count - fast data  
🗑
FECC-i   Forward Error Correction Count - interleaved data  
🗑
FECN   Forward Explicit Congestion Notification  
🗑
FELB   Far End Loop Back  
🗑
FEP   Front-End Processor  
🗑
FERF   Far End Receive Failure  
🗑
FEXT   Far-End Cross Talk  
🗑
FGA   Feature Group A  
🗑
FH   Frame Handler  
🗑
FHSS   Frequency Hopping Spread Spectrum  
🗑
FI   Facility Identification  
🗑
FIB   Forward Indicator Bit  
🗑
FIC   Frame Identification Code  
🗑
FID   Format IDentification  
🗑
FIFO   First In/First Out  
🗑
FISU   Fill-In Signaling Unit  
🗑
FITL   Fiber In The Loop  
🗑
FLL   Fixed Loss Loop  
🗑
FO   Fiber Optic  
🗑
FOTS   Fiber Optical Transmission System  
🗑
FPDU   Frame relay Protocol Data Unit  
🗑
FPS   Framing Pattern Sequence  
🗑
FR   Frame Relay  
🗑
FR PVC   Frame Relay Permanent Virtual Connection  
🗑
FRAD   Frame Relay Assembler/Disassembler  
🗑
FRAD   Frame Relay Access Device  
🗑
FRBS   Frame Relay Bearer Service  
🗑
FRF-LMI   Frame Relay Forum - Local Management Interface  
🗑
FRI   Frame Relay Interface  
🗑
FRS   Frame Relay Service  
🗑
FRS   Frame Relay Switch  
🗑
FRSS   Frame Relay Switching System  
🗑
FR-SSCS   Frame Relay Service Specific Convergence Sub-layer  
🗑
FS   Failed Second  
🗑
FS   Frame Status  
🗑
FSK   Frequency Shift Keying  
🗑
FSN   Forward Sequence Number  
🗑
FT-1   Fractional T-1  
🗑
FTAM   File Transfer, Access, & Mgmt  
🗑
FTP   File Transfer Protocol  
🗑
FTSC   Federal Telecommunications Standards Committee  
🗑
FTTC   Fiber to the Curb  
🗑
FTTH   Fiber to the House  
🗑
FTTL   Fiber to the Loop  
🗑
FTTN   Fiber to the Neighborhood  
🗑
FUNI   Frame (relay) User Network Interface  
🗑
FX   Foreign Exchange  
🗑
FXO   Foreign Exchange Office  
🗑
FXS   Foreign Exchange Subscriber  
🗑
FXS   Foreign Exchange Station  
🗑
GBS   General Broadcast Server  
🗑
GFC   Generic Flow Control  
🗑
GFI   General Format Identifier  
🗑
GGP   Gateway to Gateway Protocol  
🗑
GGSN   Gateway GPRS Support Node  
🗑
GNE   Gateway Network Element  
🗑
GOS   Grade of Service  
🗑
GOSIP   Government Open System Interconnection Profiles  
🗑
GPRS   General Packet Radio Service/System  
🗑
GPS   Global Positioning System  
🗑
GS   Ground Start  
🗑
GSM   Global System for Mobile (telecommunications)  
🗑
GTXC   Global Telephone Exchange Carrier  
🗑
HCDS   High Capacity Digital Service  
🗑
HCM   High Capacity Multiplexing  
🗑
HCS   Header Check Sequence  
🗑
HCV   High Capacity Voice  
🗑
HDB3   High-Density Bipolar Three-Bit substitution  
🗑
HDLC   High-level Data Link Control  
🗑
HDML   Handheld Device Markup Language  
🗑
HDSL   High bit-rate Digital Subscriber Line  
🗑
HDSL2   High bit-rate Digital Subscriber Line w/ 6dB noise margin  
🗑
HDT   Host Digital Terminal  
🗑
HDTV   High Density TeleVision  
🗑
HE   Header Extension  
🗑
HEC   Header Error Control  
🗑
HEL   Header Extension Length  
🗑
HFC   Hybrid Fiber Coax  
🗑
HIPPI   HIgh-speed Peripheral Parallel Interface  
🗑
HLF   Higher Layer Functions  
🗑
HLM   Heterogeneous LAN Mgmt  
🗑
HLPI   High Layer Protocol Identifier  
🗑
HLR   Home Location Register  
🗑
HOPS   Horizontally Oriented Protocol Structure  
🗑
HPAD   Host Packet Assembler-Disassembler  
🗑
HRC   Hybrid Ring Control  
🗑
HSCWD   High Speed Circuit Switched Data  
🗑
HSSI   High Speed Serial Interface  
🗑
HTML   Hypertext Markup Language  
🗑
HTTP   Hypertext Transfer Protocol  
🗑
HTU   HDSL Transmission Unit  
🗑
HTU-C   HDSL Transmission Unit - Central Office  
🗑
HTU-R   HDSL Transmission Unit - Remote  
🗑
IA   Integrated Access  
🗑
IAB   Internet Advisory Board  
🗑
IAD   Integrated Access Device  
🗑
IAM   Initial Address Message  
🗑
IAT   Integrated Access Terminal  
🗑
IBEX   Info Business Exchange - www.ibexsystems.com  
🗑
IBR   Intermediate Bit Rate  
🗑
ICB   Individual Case Basis  
🗑
ICCF   Interexchange Carrier Compatibility Forum  
🗑
ICI   InterCarier Interface  
🗑
ICIP   Inter-Carrier Interface Protocol  
🗑
ICL   Inserted Connection Loss  
🗑
ICMP   Internet Control Message Protocol  
🗑
IC-POT   Interexchange Carrier-Point of Termination  
🗑
ID   Identification  
🗑
IDCP   Internet Device Control Protocol  
🗑
IDF   Intermediate Distribution Frame  
🗑
IDLC   Integrated Digital Loop Carrier  
🗑
IDS   Intrusion Detection System  
🗑
IDT   Information Distribution Company  
🗑
IDT   Integrated Digital Terminal  
🗑
IDU   Interface Data Unit  
🗑
IE   Information Element  
🗑
IEC   Interexchange Carrier  
🗑
IEEE   Institute of Electrical and Electronics Engineers  
🗑
IETF   Internet Engineering Task Force  
🗑
I-Frame   Information Frame  
🗑
IG   Interface Group  
🗑
IGP   Interior Gateway Protocol  
🗑
IGRP   Interior Gateway Routing Protocol  
🗑
IIME   Intra-network, Inter-SSS Mapping Entity  
🗑
IIS   Internet Information Server  
🗑
IISP   Interim Interswitch Signaling Protocol  
🗑
ILEC   Incumbent/Independent Local Exchange Carrier  
🗑
ILMI   Interim Local Management Interface  
🗑
ILRM   Interim Local Management Interface  
🗑
IMP   Interface Message Processors  
🗑
IMPDU   Initial MAC Protocol Data Unit  
🗑
IMS   Interactive Multimedia Server  
🗑
IMSI   International Mobile Subscriber Identity  
🗑
IN   Intelligent Network  
🗑
INA   Information Network Architecture  
🗑
IND   Indication  
🗑
INE   Intelligent Network Element  
🗑
INE   Intelligent Network Element  
🗑
IO   Inter-Office  
🗑
IOC   Inter-Office Channel  
🗑
IOC   Inter-Office Channel  
🗑
IP   Intelligent Peripheral  
🗑
IP   Internet Protocol  
🗑
IPM   Interpersonal Messaging System  
🗑
IPS   Instructions Per Second  
🗑
IPSec   Internet Protocol Security  
🗑
IPX   Internet Packet eXchange  
🗑
IS   Intermediate System  
🗑
ISDN   Integrated Services Digital Network  
🗑
ISDNUP   Integrated Services Digital Network User Part  
🗑
ISDU   Isochronous Service Data Unit  
🗑
ISID   Idle Signal Identification  
🗑
ISM   Instrumentation, Scientific, and Medical  
🗑
ISO   Intn'l Standards Organization  
🗑
ISP   Internet Service Provider  
🗑
ISSI   Inter-Switching System Interface  
🗑
ISSIP   Inter-Switching System Interface Protocol  
🗑
ISSP   Interim Interswitch Signaling Protocol  
🗑
ISUP   ISDN User Part  
🗑
ITFS   Instructional Television Fixed Services  
🗑
ITU   International Telecommunication Union  
🗑
IWF   InterWorking Function  
🗑
IWU   InterWorking Unit  
🗑
IXC   IntereXchange Carrier  
🗑
JIS   Jurisdictional Interstate Service  
🗑
JPEG   Joint Picture Expert Group  
🗑
L2-PDU   Layer 2 Protocol Data Unit  
🗑
LAN   Local Area Network  
🗑
LAN PHY   LAN Physical Layer  
🗑
LANE   LAN Emulation  
🗑
LANE   Local Area Network Emulation  
🗑
LAPB   Link Access Protocol Balanced  
🗑
LAPD   Link Access Procedure D channel  
🗑
LAPF   Link Access Protocol Frame relay  
🗑
LATA   Local Access & Transport Area  
🗑
LAW   Local Area Wireless  
🗑
LBO   Line Build Out  
🗑
LCA   Line Circut Address  
🗑
LCGN   Logical Channel Group Number  
🗑
LCI   Logical Connection Identifier  
🗑
LCN   Logical Channel Number  
🗑
LCP   Link Control Protocol  
🗑
LCS   Lan Configuration Server  
🗑
LDAP   Lightweight Directory Access Protocol  
🗑
LDC   LATA Distribution Channel  
🗑
LDM   Limited Distance Modem  
🗑
LDS   Local Digital Switch  
🗑
LEC   Lan Emulation Client  
🗑
LEC   Local Exchange Carrier  
🗑
LEN   Local Exchange Node  
🗑
LEN   Line Equipment Number  
🗑
LES   Lan Emulation Server  
🗑
LET   Line Equipment Transfer  
🗑
LFC   Local Functional Capabilities  
🗑
LGE   Loop- or Ground-Start Exchange  
🗑
LGS   Loop- or Ground-Start Subscriber  
🗑
LI   Length Indicator  
🗑
LIDB   Line Information Database  
🗑
LIU   Line Interface Unit  
🗑
LLB   Line Loop Back  
🗑
LLC   Low Layer Compatibility  
🗑
LLC   Logical Link Connection  
🗑
LLC   Logical Link Control  
🗑
LLDL   Low Level Data Link  
🗑
LMC   Loop Maintenance Center  
🗑
LMDS   Local Multipoint Distribution Service  
🗑
LME   Layer Management Entity  
🗑
LMI   Local Mgmt Interface  
🗑
LMOS   Loop Maintenance Operations System  
🗑
LMU   Line Monitor Unit  
🗑
LNNI   Lan emulation Network-to-Net Interface  
🗑
LNP   Local Number Portability  
🗑
LOF   Loss Of Frame  
🗑
LOH   Line Overhead  
🗑
LOP   Loss Of Pointer  
🗑
LOP-L   Loss Of Pointer - Line  
🗑
LOP-P   Loss Of Pointer - Path  
🗑
LOP-V   Loss Of Pointer - Virtual  
🗑
LOS   Line Of Sight  
🗑
LOS   Loss Of Signal  
🗑
LOSW   Loss Of Synchronous Word  
🗑
LPC   Linear Predictive Coding  
🗑
LPDP   Local Policy Decision Point  
🗑
LPU   Line Protection Unit  
🗑
LRB   Loop Reverse Battery  
🗑
LRN   Local Routing Number  
🗑
LS   Loop Start  
🗑
LSAP   Link Service Access Point  
🗑
LSB   Least Significant Bit  
🗑
LSMS   Local Service Management System  
🗑
LSOA   Local Service Order Administration  
🗑
LSSU   Link Status Signaling Unit  
🗑
LSSU   Link Status Signal Unit  
🗑
LT   Line Termination  
🗑
LTE   Line Terminating Equipment  
🗑
LTE   Line Terminal Equipment  
🗑
LU   Logical Unit  
🗑
LULT   Line Unit/Line Termination  
🗑
LUNI   Lan emulation UNI  
🗑
L-UNI   Lan emulation User Network Interface  
🗑
LUNT   Line Unit Network Termination  
🗑
LXT   Local Exchange Terminal  
🗑
MAC   Media Access Control  
🗑
MAC   Media Access Control  
🗑
MAN   Metropolitan Area Network  
🗑
MAN   Metropolitan Area Network  
🗑
MAPDU   Management Application Protocol Data Unit  
🗑
MAU   Media/Multiple Access Unit  
🗑
MCU   Multiplexer Control Unit  
🗑
MDCP   Media Device Control Protocol  
🗑
MDF   Main Distribution Frame  
🗑
MDS   Multipoint Distribution Service  
🗑
MDTP   Media Device Transport Protocol  
🗑
MF   Multiple Frequency  
🗑
MFAS   Multi-Frame Alignment Signal  
🗑
MGCP   Media Gateway Control Protocol  
🗑
MGCP   Media Gateway Control Protocol  
🗑
MIB   Management Information Base  
🗑
MID   Muliplex Identifier  
🗑
MID   Message Identifier  
🗑
MIME   Multipurpose Internet Mail Extension  
🗑
MIPS   Million Instructions Per Second  
🗑
MIS   Mgmt Info System  
🗑
MIS   Mgmt Info System  
🗑
MIX   Multimedia Internet Exchange  
🗑
MLHG   Multi-Line Hunt Group  
🗑
MLM   Multi-Longitudinal Mode  
🗑
MLT   Metalic Loop Test  
🗑
MMDS   Multichannel Multipoint Distribution Service  
🗑
MMDS   Multimedia Data Services  
🗑
MMDX   Multimedia Data Services  
🗑
MO   Managed Object  
🗑
MOC   Managed Object Classes  
🗑
MPEG   Motion Picture Expert Group  
🗑
MPL   Maximum Packet Lifetime  
🗑
M-PLANE   Management Plane  
🗑
MPLS   Multi-Protocol Label Switching  
🗑
MPLS   Multi-Protocol Layer Switching  
🗑
MPoA   Multiple Protocol over ATM  
🗑
MRF   Multilink Frame Relay  
🗑
MSA   Metropolitan Statistical Area  
🗑
MSDM   Multipoint Substrate Data Mux  
🗑
MSO   Multiple Service Operator  
🗑
MSP   Maintenance Svc Provider  
🗑
MSS   MAN Switching System  
🗑
MSS   MAN Switching System  
🗑
MSU   Message Signaling Unit  
🗑
MTAU   Metalic Test Access Unit  
🗑
MTP   Message Transfer Part  
🗑
MTS   Message Telephone System  
🗑
MTSO   Mobile Telephone Switching Office  
🗑
MTU   Max Trans Unit  
🗑
MTU   Max Trans Unit  
🗑
MUB   MultiUse Bearer service  
🗑
MUX   Multiplexer  
🗑
MVC   Multicast Virtual Circuit  
🗑
MVNO   Mobile Virtual Network Operator  
🗑
   
🗑


   

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