→ B, C → D, E → H, I→ M, N → P, Q → Z

I/O
Input/Output or Issued/Outstanding

IC
Integrated Circuit

IEC
International Engineering Consortium

IEEE
Institute of Electrical & Electronics Engineers

IP
Internet Protocol or Intellectual Property

IPO
Initial Public Offering

IPTV
Internet Protocol TeleVision

ISP
Internet Service Provider

IT
Information Technology

ITU
International Telecommunications Union – a standards organisation

KCI
Keeping Customers Informed

L2C
Lead to Cash

L2S
Layer 2 Switch – the handoff switch/router for GEA services

LAN
Local Area Network

LLU
Local Loop Unbundling

LLUO
Local Loop Unbundling Operator

LORN
Linked Order Reference Number – used to link SMPF provide services

LTE
Long Term Evolution (4G wireless)

MAC
Media Access Control

MAN
Metropolitan Area Network

Mb/s
Megabits per second

Mbps
Megabits per second

MCB
Main Circuit Breaker

MDF
Main Distribution Frame – the “wall of wire” that breaks out the cables emanating from the Exchange to the various PCPs

Mil
Million

MLC
Managed Line Characteristics

MOU
Memorandum Of Understanding

MPCn
Metallic Path Connection – the end to end metallic circuit between the end user’s NTP and the CP Handover Distribution Frame (HDF)

MPF
Metallic Path Facility – this is just the wire, not connected to a PSTN node. Will only be provided if CP agrees to abide by the ANFP

MUA
Multi User Area – in an exchange (MDF site) that is not partitioned by LLUO

→ B, C → D, E → H, I→ M, N → P, Q → Z