M	mandatory
MA	Maintenance Agency
MA	Measurement Agent
MA	Messaging Association
MA	Mobility Agent
MA	Multicast Acquisition
MAA	Multimedia-Auth-Answer
MAAA	Multicast Address Allocation Architecture
MAAL	Management ATM Adaptation Layer
MAAS	Multicast Address Allocation Servers
MAAWG	Messaging Anti-Abuse Working Group
MAB	Mapped Address Block
MAC	Mandatory Access Control
MAC	Media Acces Control
MAC	Media Access Control
MAC	Medium Access Control
MAC	Message Authentication Code
MAD	Mean Absolute Deviation
MADCAP	Multicast Address Dynamic Client Allocation Protocol
MAF	Management Application Function
MAG	Mobile Access Gateway
MAL	Management Abstraction Layer
MAL	Message Address Length
MALI	Multicast Address Listening Interval
MAM	Maximum Allocation Model
MAM	Multicast Address Mapping
MAMS	Multi-Access Management Services
MAMT	Multicast Address Mapping Timer
MAN	Metropolitan Area Network
MANE	media aware network element
MANE	media-aware network element
MAP	Mobile Application Part
MAP	Mobility Anchor Point
MAPOS	Multiple Access Protocol over SONET/SDH
MAR	Multimedia-Auth-Request
MARF	Mail Abuse Reporting Format
MARP	Multicast Address Resolution Protocol
MARS	Multicast Address Resolution Server
MASA	Manufacturer Authorized Signing Authority
MASC	Multicast Address Set Claim
MASC	Multicast Address-Set Claim
MAT	Multicast Announcement Timer
MBAC	measurement-based admission control
MBB	Make Before Break
MBB	make-before-break
MBE	mobility binding entry
MBM	Model-Based Metrics
MBMS	Multimedia Broadcast/ Multicast Service
MBR	Medium bitrate range
MBS	Maximum Burst Size
MBZ	Must Be Zero
MC	Mapping Client
MC	Media Consumer
MC	Message-Count
MCA	merchant certification authority
MCAP	multicast channel allocation protocol
MCC	Management Communication Channel
MCC	Mobile Country Code
MCC	Multiple Content Capture
MCF	Message Communication Function
MCFP	Mean Concealed Frame Proportion
MCGAM	MIXER Conformant Global Address Mapping
MCL	Maximum Coupling Loss
MCL	multi-component LOOKUP
MCLT	Maximum Client Lead Time
MCM	Multiple Carrier Modulation
MCN	Management Communication Network
MCN	Management Communications Network
MCP	Minimum Cost Path
MCR	Minimum Cell Rate
MCT	Minimum Cost Tree
MCT	Minimum-Cost Tree
MCT	Mixed Class Throughput
MCU	Multipoint Conference Unit
MCU	Multipoint Control Unit
MCU	multiparty conference unit
MD	Maintenance Domain
MD	Management Domain
MD	Media Distributor
MD	Mediation Device
MD	Mediterranean Dialogue
MD	mail delivery
MD	maximum delay
MD5	Message Digest 5
MDA	Mail Delivery Agent
MDA	Message Delivery Agent
MDC	Manipulation Detection Code
MDC	Multiple Description Coding
MDCT	Modified Discrete Cosine Transform
MDDS	Maximum Datagram Data Size
MDL	maximum datagram lifetime
MDMS	Meter Data Management System
MDN	Message Disposition Notification
MDR	MANET Designated Router
MDSC	Multi-Domain Service Coordinator
MDU	multi-dwelling unit
ME	Maintenance Entity
ME	Mobility Events
MED	Multi-Exit Discriminator
MED	Multi-Exit-Discriminator
MEF	Metro Ethernet Forum
MEG	Maintenance Entity Group
MELP	Mixed Excitation Linear Prediction
MEP	MEG End Point
MEP	Maintenance End Point
MEP	Message Exchange Pattern
MF	Media Function
MF	More Fragments
MF	Multi-Field
MF	Multiplicative Factor
MF	mail forwarder
MFIB	multicast forwarding information base
MFL	Median fraction lost
MFR	Maximum forwarding rate
MFR	Multilink Frame Relay
MFS	Maximum Frame Size
MFTP	multicast file transfer protocol
MFV	MIP6-Feature-Vector
MG	Media Gateway
MGA	Multicast Group Authority
MGC	Media Gateway Controller
MGC	Multicast Group Capacity.
MGCP	Media Gateway Control Protocol
MGCU	Media Gateway Control Unit
MGM	Multilinear Galois Mode
MGMD	Multicast Group Membership Discovery
MGU	Media Gateway Unit
MH	Mobile Host
MH	Modified Huffman
MH	main header
MH	mobility header
MHA	multicast host address
MHDS	Multi-Hop Delivery Service
MHP	Multi-Homed Prefix
MHP	Multimedia Home Platform
MHS	Mail Handling Service
MHS	Message Handling Service
MI	Management Information
MI	Message Identifier
MI	Mode Index
MIB	Management Information Base
MIC	Message Integrity Code
MICE	Metafile Image Code Execution
MICS	Media Independent Command Service
MIDI	Musical Instrument Digital Interface
MIFP	Mean Impaired Frame Proportion
MIH	Media Independent Handover
MIHF	Media Independent Handover Function
MII	Medium Independent Interface
MILE	Management Incident Lightweight Exchange
MIME	Multipurpose Internet Mail Extensions
MIME	Multipurpose Internet Message Extensions
MIMO	Multi-Input-Multi-Output
MIMO	Multiple Input Multiple Output
MIN	Mobile Identification Number
MIP	MEG Intermediate Point
MIP	Maintenance Intermediate Point
MISP	Malware Information Sharing Platform
MITM	Man-In-The-Middle
MITM	Meet-In-The-Middle
MIXER	Mime Internet X.400 Enhanced Relay
MKI	Master Key Identifier
MKT	Master Key Tuple
ML	Multicast Latency
MLA	Mail List Agent
MLA	Multiple Line Appearance
MLC	Multi-Line Controller
MLD	Multicast Listener Discovery
MLE	Mesh Link Establishment
MLI	message length indicator
MLLW	Mean Lower Low Water
MLN	Multi-Layer Networks
MLP	Minimum Load Path
MLP	Mobile Location Protocol
MLP	Multi-Level Partitioning
MLR	Media Loss Rate
MLS	Multi-Level Security
MLT	Modulated Lapped Transform
MMA	MIDI Manufacturers Association
MME	Mobility Management Entity
MMH	Multimedia Mail Handler
MMHF	Multimedia Message Handling Facility
MMHS	Military Message Handling System
MMP	Mobility Management Protocol
MMR	Modified Modified READ
MMS	Multimedia Messaging Service
MMT	Multicast Mapping Table
MN	Mechanism Name
MN	Mobile Node
MN-FA	Mobile Node -Foreign Agent
MNC	Mobile Network Code
MNC	Mobile Node Control
MNN	Mobile Network Node
MNP	Microcom Networking Protocol
MNP	Mobile Network Prefix
MO	Matching Operator
MO	Measurement Object
MO	Message Offset
MO	managed objects
MOL	Maximum offered load
MOPS	Management Operations per Second
MOS	mean opinion score
MOSPF	Multicast Open Shortest Path First
MOSS	MIME Object Security Services
MOTD	Message of The Day
MOTIS	Message Oriented Text Interchange Service
MOTIS	Message-Oriented Text Interchange Systems
MOU	Memorandum of Understanding
MP	Mail Protocol
MP	Maintenance Point
MP	Management Plane
MP	Measurement Peer
MP	Media Provider
MP	Merge Point
MP	Multilink PPP
MP	medium-priority
MPCP	Multi-Point Control Protocol
MPDU	MAC Protocol Data Unit
MPDU	Management Protocol Data Unit
MPE	Multi-Protocol Encapsulation
MPEG	Motion Picture Experts Group
MPI	MDSC-PNC Interface
MPI	minimum picture interval
MPK	MIKEY Protection Key
MPL	Minimum Path Latency
MPLP	Minimum Packet Loss Path
MPLS	Multi Protocol Label Switching
MPLS	Multi-Protocol Label Switching
MPP	Message Posting Protocol
MPS	maximum packet size
MPV	Maximum-Pad-Value
MQC	Meta-QoS-Class
MR	Map Resolver
MR	Map-Resolver
MR	Mobile Routers
MR	Modified READ
MRACL	Model-Reference Adaptive Control Loop
MRAI	Minimum Route Advertisement Interval
MRB	Media Resource Broker
MRC	Maximum retransmission count
MRC	Mixed Raster Content
MRCP	Media Resource Control Protocol
MRD	Maximum retransmission duration
MRD	Multicast Router Discovery
MRI	Message Routing Information
MRI	Message-Routing-Information
MRIB	Multicast Routing Information Base
MRM	Message Routing Method
MRN	multi-region network
MRRU	Maximum Received Reconstructed Unit
MRRU	Maximum Reconstructed Reception Unit
MRS	Message Routing Service
MRSQ	MAIL RECIPIENT SCHEME QUESTION
MRT	Maximally Redundant Trees
MRT	Maximum retransmission time
MRT	Multicast Routing Table
MRU	Maximum-Receive-Unit
MRU	maximum receive unit
MS	Manual Switch
MS	Map-Server
MS	Media Server
MS	Message Store
MS	Mobile Station
MSA	Mail Submission Agent
MSA	Message Submission Agent
MSA	Mobility Security Association
MSA	Mobility Service Authorizer
MSAS	Media Synchronization Application Server
MSB	most significant bit
MSC	Mobile Switching Center
MSCML	Media Server Control Markup Language
MSD	Maximum SID Depth
MSDP	Multicast Source Directory Protocol
MSDP	Multicast Source Discovery Protocol
MSDP	Multicast Source Distribution Protocol
MSE	Multicast-Session-Establishment
MSEN	Multicast-Session-End-Notify
MSF	Media-Switching Fabric
MSF	Minimal Scheduling Function
MSI	Multicast-Session-Information
MSI	Multiplex Structure Identifier
MSIN	Mobile Subscriber Identification Number
MSK	Master Session Key
MSL	Maximum Segment Lifetime
MSML	Media Server Markup Language
MSN	MESSAGE SEQUENCE NUMBER
MSN	Master Sequence Number
MSN2	Media Standardized Names 2.0
MSP	Mapping Service Provider
MSP	Message Security Protocol
MSP	Mobility Service Provider
MSP	message switching protocol
MSRP	Message Session Relay Protocol
MSRP	Message Sessions Relay Protocol
MSRP	Multiple Stream Registration Protocol
MSS	Mobile Support Stations
MSS	Multiple Satellite System
MSS	maximum segment size
MST	Multi-Session Transmission
MSTP	Mobility Services Transport Protocol
MSTP	Multiple Spanning Tree Protocol
MT	Mobile Terminal
MT	Multi Topology
MT	multi-topology
MTA	Mail Transfer Agent
MTA	Message Transfer Agent
MTA	mail transport agents
MTA	multimedia terminal adapter
MTAP	Multi-time aggregation packet
MTAS	Mobile Terminal Authorizing System
MTB	Move to Break
MTE	Management Triggered Event
MTI	Mandatory To Implement
MTI	mandatory-to-implement
MTL	Message Transfer layer
MTP	Message Transfer Part
MTP	Multicast Transport Protocol
MTP2	Message Transfer Part 2
MTP3	Message Transfer Part 3
MTQP	Message Tracking Query Protocol
MTS	Many-Time Signature
MTS	Merkle Tree Signatures
MTS	Message Transfer System
MTSN	Message Tracking Status Notification
MTTF	Mean Time To Frame
MTTS	Mean Time To Synchronization
MTU	Maximum Transmission Unit
MTU	Maximum-Transmission-Unit
MTU	Multi-Tenant Unit
MTU	maximum transfer unit
MU	Merging Unit
MUA	MIME User Agent
MUA	Mail User Agent
MUA	Message User Agent
MUD	Manufacturer Usage Description
MUD	Multi-User Dungeon
MV	Mu-Varadharajan
MVPN	Multicast Virtual Private Network
MVR	Multicast VLAN Registration
MVRCA	Magnalink Variable Resource Compression Algorithm
MVRP	Multiple VLAN Registration Protocol
MWD	maximum waiting delay
MWI	Message-Waiting Indicator
MWI	message waiting indicator
MWIF	Mobile Wireless Internet Forum