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AcronymMeaning
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
Created by: halibut