Here are the most common telecom acronyms starting with M from the world of computer networking.
← Back to Full Telecom Acronyms| M | Material Dispersion Parameter |
| M/W | Microwave |
| MA | Maintenance actions |
| MA | Maintenance Administrator |
| MA | Mechanized Mapper Assigner |
| MA | Metallic Access |
| mA | Milliampere |
| MAB | Metallic Access Bus |
| MAC | Machine-Aided Cognition (or Man and Computer) |
| MAC | Media Access Control |
| MAC | Medium Access Control |
| MACS | Mechanized Assignment and Control System |
| MACS | Moves, Adds, Changes (to workstations or other environmental/facility issues) |
| MADN | Multiple Appearance Directory Number |
| MADU | Multimount Asynchronous Data Unit |
| MAE | Major Account Executive (S) |
| MAF | Major Account Facility |
| MAG | Major Accounts Group (S) |
| MAG Data | Major Accounts Group – Data |
| MAGIC | Multidimensional Applications and Gigabit Working Consortium |
| MAIU | Multiple Access Interface Unit |
| MAN | Manual service |
| MAN | Metallic Access Network |
| MAN | Metropolitan Area Network |
| MAP | Maintenance and Administration Position |
| MAP | Manufacturing Automation Protocol (General Motors) |
| MAPI | Messaging Application Programming Interface |
| MAPSS | Maintenance Analysis Plan for Special Service |
| MAR | Major Account Representative (S) |
| MAR | Memory Access Register |
| MAR | Memory Address Register |
| MARC | Machine-Readable Cataloging |
| MARCS | Mechanized Assignment and Record Conversion System |
| MARI | Mileage And Rate Information |
| MARS | Multi-user Archival Retrieval System |
| MAS | Main Store |
| MAS | Management Analysis System |
| MASA | Main Store Array |
| MASC | Main Store Controller |
| MASC | Multiple Award Schedule Contract |
| MASER | Microwave Amplification by Simulated Emission of Radiation |
| MAT | Multiple Access Station Rearrangement Training |
| MATR | Minimum Average Time Requirement |
| MAU | Math Accelerator Unit |
| MaxCT | Maximum Corrective Maintenance Time |
| MB | Megabyte |
| MB | Megabyte or 106bytes |
| MBA | Management Billing Advantage (SM) |
| MBE | Molecular Beam Epitaxy |
| MBE | Multibutton Telephone Equipment |
| MBKS | Multibutton Key Services |
| MBKU | Multibutton Key Telephone Unit |
| MBO | Management by Objective |
| Mbps | Megabits per Second |
| Mbps | Megabits per Second |
| MBQ | Modified Biquinary Code |
| MBT | Make Blocked Trunk list |
| MBU | Maintenance Busy |
| MC | Management Center |
| MC | Module Control |
| MC | Module Controller |
| MCA | Multiple Call Appearances |
| MCC | Maintenance Control Center |
| MCC | Maintenance Control Circuit |
| MCC | Master Control Console |
| MCC | Microelectronics Computer and Technology Corporation |
| MCCS | Mechanized Call Card Service |
| MCCS | Mechanized Calling Card Service |
| MCH | Malicious Call Hold |
| McIAS | Multichannel Intercept Announcement System (Cognitronics) |
| MCM | Multicarrier Modulation |
| MCP | Master Control Program |
| MCP | Memory Card Present |
| MCR | Move, Change, and Rearrangement |
| MCS | Management Center System |
| MCS | Microprocessor Controlled System |
| MCT | Mean Corrective Maintenance Time |
| MCTSI | Module Controller/Time Slot Interchanger |
| MCU | Module Control Unit |
| MCVF | Multi-Channel Voice Frequency |
| MCW | Memory Card Writer |
| MCW | Modulated Continuous Wave |
| MD | Manufacture Discontinued |
| MD | Multiple Dissemination |
| MDA | Manufacturing Defect Analyzer (MFG) |
| MDC | Message and Device Controller |
| MDF | Main Distributing (Distribution) Frame |
| MDII | Machine Detected Interoffice Irregularities |
| MDM | Modular Data Module |
| MDNS | Managed Data Network Services |
| MDR | Message Detail Record(ing) |
| MDS | Methods Development Standards |
| MDS | Modular Documentation System |
| MDS | Multiple Dataset System |
| MDT | Mean Downtime |
| MDT | Modular Display Telephone |
| MDW | Military District-Washington |
| MEB | Mate Exchange Bus |
| MEDLARS | Medical Literature Analysis and Retrieval System |
| MEDLINE | MEDLARS On-Line System |
| Megabyte | 106bytes |
| MELD | Mechanized Engineering and Layout of Distributing Frame |
| MEP | Market Expansion Program |
| MER | Most Economical Routing |
| MERS | Most Economical Route Selection |
| MES | Multiline Electronic Sets |
| METL | Mechanized Equipment Test List |
| METS | Mobile Equipment Tracking System |
| MEU | Memory Expansion Unit |
| MEX | Memory Extension |
| MF | Mediation Function |
| MF | Multifrequency |
| MFC | Modular Feature Customization |
| MFC | Multi-Function Controller |
| MFJ | Modified Final Judgment |
| MFLOPS | Million Floating Point Operations Per Second |
| MFOS | Multifunction Operations System |
| MFR | Multifrequency Ringing |
| MFT | Metallic Facility (ies) Terminal |
| MFT | Multiprogramming with a Fixed Number of Tasks |
| MG | Master Group |
| MHD | Moving Head Disk |
| MHz | Megahertz |
| MI | Message Interface |
| MI2 | Message Interface – Model 2 |
| MIB | Management Information Base |
| MIB | Message Interchange Bus |
| MIB | Message Interface Bus |
| MIB | Metallic Interface Bus |
| MIBC | Message Interchange Bus Controller |
| MICR | Magnetic Ink Character Recognition |
| MICU | Message Interface and Clock Unit |
| MICU | Message Interface Control Unit |
| MIDAC | Michigan Digital Automatic Computer |
| MIDAS | Multiple Indexed Data Access System |
| MIL | Military |
| MILPERCEN | Military Personnel Center |
| MIMD | Multiple-Instruction Stream, Multiple-Data Stream |
| MIMR | Magnetic Ink Mark Recognition |
| MIP | Marketing Information Packet |
| MIP | Medium Interface Point |
| MIPS | Million Instructions Per Second |
| MIS | Management Information System |
| MIS | Marketing Information System |
| MIS | Miscellaneous Bay |
| MISC | Miscellaneous |
| MISD | Multiple-Instruction Stream, Single-Data Stream |
| MIU | Multistation Interface Unit |
| MLH | Multiline Hunting |
| MLHG | Multiline Hunt Group |
| MLI | Message Link Interface |
| MLL | Monthly Leased Lines System |
| MLN | Main Listed Number |
| MLPP | Multilevel Precedence and Preemption |
| MLSS | Machine Load Service Summary |
| MLT | Mechanized Loop Test(ing) |
| MM | Memory Module |
| MM | Model Management (IS) |
| MMCS | Materials Management Customer Service |
| MMIS | Materials Management Inventory System |
| MML | Man-Machine Language |
| MMOC | Minicomputer Maintenance Operation Center |
| MMP | Maintenance Management Plan |
| MMP | Module Message Processor |
| MMR | Manual Material Request (MFG) |
| MMRG | Minimum Monthly Revenue Guarantee |
| MMRSM | Multimode Remote Switching Module |
| MMRSM | Multimodule Remote Switching Module |
| MMS | Maintenance Management Subsystem |
| MMS | Material Management Services |
| MMSU | Modular Metallic Service Unit |
| MMSU | Modular Metallic Service/Switch Unit |
| MMU | Memory Management Unit |
| MNCS | Multipoint Network Control System |
| MNP | Microcom Networking Protocol |
| MOCVD | Metal Organic Chemical Vapor Deposition |
| Modem | Modulator-demodulator |
| MOL | Material On Loan |
| MOL | Maximum Order Limit |
| MOP | Method of Procedure |
| MOP | Method of Procedure |
| MOR | Mini-Output Report |
| MOR | Monthly Operating Report (MFG) |
| MOS | Metal(lic)-Oxide Semiconductor |
| MOSFET | Metal-Oxide Semiconductor Field-Effect Transistor |
| MOU | Minutes of Use |
| MOY | Month Of Year |
| MP | Master Processor |
| MP | Module Processor |
| MPA | Manufacturing Program Analysis |
| MPCC | Multi-Protocol Communications Controller |
| MPG | Microwave Pulse Generator |
| MPL | Multischedule Private Line |
| MPM | Modem Pool Member |
| MPOP | Minimum Point of Penetration |
| MPP | Multiprotocol Switching PAD |
| MPR | Monthly Performance Report (MFG) |
| MPR | Multiplex Project Requirements |
| MPS | Message Processing System |
| MPS | Message Processing System (B) |
| MPSC | Multi-Protocol Serial Controller |
| MPTA | Modem Pool Terminal Adapter |
| MPU | Microprocessing Unit |
| MQ | Modular Queuing |
| MQ | Multiplier-Quotient |
| MQR | Multiplier-Quotient Register |
| MR | Modification Request |
| MRA | Material Return Authorization |
| MRB | Material Review Board (MFG) |
| MRC | Monthly Recurring Charge |
| MRC | Monthly Recurring Charge |
| MRS | Management Reporting System |
| MRT | Mean Recovery Time |
| MRT | Mean Restoral Time |
| MS | Main Station |
| MS | Management Services |
| MS | Management System (Suntel C3 computer system) |
| MS | Master Scanner circuit |
| MS | Microprocessor System |
| ms | Milliseconds |
| MS | Module Structure |
| MSB | Make Set Busy |
| MSB | Message Signaling Buffer |
| MSB | Message Switch and Buffer (or Message Switch Buffer) |
| MSB | Message Switch Buffer |
| MSB | Most Significant Bit (or byte) |
| MSBI | Make Set Busy, Intragroup |
| MSC | Message Switch Control |
| MSCU | Message Switch Control Unit |
| MSCU2 | Message Switch Control Unit – Model 2 |
| MSE | Marketing Support Engineering |
| MSG | Message |
| MSG | Message Switch |
| MSGS | Message Switch |
| MSGS2 | Message Switch Model 2 |
| MSI | Medium-Scale Integration |
| MSIA | Management Specific Information Area |
| MSK | Minimum Shift Keyed Modulation |
| MSL | Maintenance Stocking Location |
| MSLPU | Medium Speed Line Processing Unit |
| MSNF | Multisystem Networking Facility |
| MSPU | Message Switch Peripheral Unit |
| MSPU2 | Message Switch Peripheral Unit Model 2 |
| MSPU3 | Message Switch Peripheral Unit Model 3 |
| MSR | Monthly Status Review |
| MSS | Mass Storage System |
| MSS | Message Service System |
| MSU | Metallic Service Unit |
| MSUDC | Michigan State University Discrete Computer |
| MT | Machine Translation |
| MTA | Message Transfer Agent |
| MTA | Message Transport Address |
| MTA | Metallic Access Network (Northern Telecom DMS-100) |
| MTA | Metallic Test Access |
| MTAS | Mechanized Trouble Analysis System |
| MTB | Metallic Test Bus |
| MTBF | Mean Time Between Failures |
| MTBF | Mean Time Between Failures |
| MTBO | Mean Time Between Outages |
| MTBPM | Mean Time Between Preventive Maintenance |
| MTC | Master Terms and Conditions |
| MTD | Magnetic Tape Drive |
| MTE | Mobile Telephone Exchange |
| MTF | Material Transfer Form |
| MTF | Mean Time to Failure |
| MTF | Modulation Transfer Function |
| MTIB | Metallic Test Interconnect Bus |
| MTIB | Metallic Test Interface Bus |
| MTL | Minimum Termination Liability |
| MTM | Maintenance Trunk Module |
| MTM | Maintenance Trunk Monitor |
| MTN | Maintenance |
| MTN | Message Transfer Network |
| MTP | Message Transfer Part |
| MTP | Message Transfer Part (SS7) |
| MTP | Monitor Terminal Process |
| MTR | Mechanized Time Reporting |
| MTS | Measured Telephone Service Core Team |
| MTS | Message Telecommunications Service |
| MTS | Message Toll Service |
| MTS | Message Transport Service |
| MTS | Michigan Terminal System |
| MTS | Mobile Telephone Service |
| MTSR | Mean Time to Service Restoral |
| MTTF | Mean Time to Failure |
| MTTF | Mean Time To Fix |
| MTTI | Mean Time To Investigate |
| MTTN | Mean Time To Notify |
| MTTR | Mean Time to Repair |
| MTTR | Mean Time to Respond |
| MTTR | Mean Time to Restore |
| MTTYPC | Maintenance Teletypewriter Peripheral Controller |
| MTU | Magnetic Tape Unit |
| MTU | Metallic Test Unit |
| MTX | Mobile Telephone Exchange |
| MU | Message Unit |
| MUF | Maximum Usable Frequency |
| MUG | Manual Users Group |
| muldem | Multiplexer/demultiplexer |
| MULTICS | Multiplexed Information and Computer Service |
| MUMR | Multi-Unit Message Rate |
| MUPH | Multiposition Hunt |
| MUX | Multiplexer |
| MVP | Multiline Variety Package |
| MVS | Multiprogramming with Virtual Storage |
| MVT | Multiprogramming with a Variable Number of Tasks |
| MW | Megawatt (electrical) |
| MW | Megaword |
| MWI | Message Waiting Indicator |
