Specifications

Glossary
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information such as Voice VLAN and QoS. It is designed to provide enhanced VoIP deployment
and management.
LS – Loop Start. This is a particular analog trunk protocol for signalling incoming and outgoing
calls.
MAC – Media Access Controller. This is the hardware interface that data (media) travels
through. Typically this will be assigned a world-wide unique address.
MAN – Metropolitan Area Network. This is a larger network that may connect a number of
LANs within a business, as well as a number of businesses. Typically, this would cover a city
area, and use fibre optics to get maximum bandwidth.
Mbps – MegaBits Per Second. Million bits per second is a measure of bandwidth on a
telecommunications medium. May also be written as Mbits/s or Mb/s. Mbps is not to be confused
with MBps (megabytes per second).
MFRD – Mitel Feature Resources Dimensions. This is a definition of the number of features
that can be used on a particular unit.
MHz – Mega Hertz. Frequency measurement.
MiNet – Mitel Network Protocol. This is Mitel’s proprietary stimulus-based protocol that is
used to signal between phones and controllers, for example key and display information.
MiTAI – Mitel Telephony Application Interface. This Mitel implementation of TAPI is used to
connect to external applications, e.g. ACD controllers.
Mitel OIG – Mitel Open Integration Gateway.
MODEM – MOdulator-DEModulator. Device that converts digital and analog signals. At the
source, a modem converts digital signals to a form suitable for transmission over analog
communication facilities. At the destination, the analog signals are returned to their digital form.
Modems allow data to be transmitted over voice-grade telephone lines.
MOH – Music on Hold.
MSW – Mitel Sales Workbench.
MTBF – Mean Time Between Failures. The statistical time between expected component
failures.
MTU – Maximum Transmission Unit. An MTU is the largest size packet or frame, specified
in octets (eight-bit bytes), that can be sent in a packet- or frame-based network, such as the
Internet.
MWI – Message Waiting Indicator. A visual indicator in a telephone that indicates to the user
that a message is waiting.