Glossary

 

Glossary - M

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

MAC

Media access control or moves, changes and adds.

Main distribution frame (MDF)

This is the apparatus that exists in the local concentrator (exchange) building and is where the copper cables terminate. Here cross connection to other apparatus can also be made by flexible jumpers.

MAN

Metropolitan Area Network.

Managed (private) network

This is the provision of all of the necessary services to make sure that the owner or the user of a private network is free from all aspects that are associated with the operation and use other than being a user of the services that are provided by the network.

Megabits Per Second (Mbps)

This is a measure of the speed of data that is capable of passing along a line and then it is expressed in millions of bits.

MCU

Mobile control unit.

Message Telecommunications Service (MTS)

MTS exists as a non-private-line interstate and intrastate long-distance that utilises in part or even in whole the public switched telephone network (PSTN).

Mobile data

This covers an extremely wide range of niche applications and includes vehicle location systems and also data information services.

Modem

This is a device which converts a digital signal into a voiceband form that has the capability of being conveyed over a connection that is analogue. For example, the public telephone network.

Modulation

Modulation is the process where by varying certain parameters of the carrier signal, in other words, a signal that is suitable for the modulation of the information signal by means of an alternative signal (the information bearing or modulating signal).

MPEG

Moving Pictures Experts Group.

MPLS

Multiprotocol label switching (MPLS). This is a versatile solution that aims to address the problems that are faced by present-day networks. These include scalability, speed, quality-of-service (QoS) management, and also traffic engineering. MPLS emerged as an elegant solution aiming to meet the bandwidth-management and also service requirements for the next-generation Internet protocol (IP). MPLS addresses issues related to routing and scalability and were based on QoS and service quality metrics. They can exist over existing asynchronous transfer mode (ATM) and also frame-relay networks.

MSS

Metropolitan switching system.

MTSO

Mobile telephone switching office.

MTS

Message telecommunications service.

Multi-Frequency signalling (MF)

This is a method of dialling that uses combinations of tones in order to denote different numbers. It is widely used on PABX's and now also used between PABX's or DELs and also electronic public exchanges. Its also known as MF4.

 

 

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