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Glossary

Explore our library of thousands of telecoms terms and acronyms defined for on-the-job reference or learning new material.

# 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

Glossary Results

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OFCS

Offline Charging System

OFDM

Orthogonal Frequency Division Multiplexing

OFDMA

Orthogonal Frequency Division Multiple Access

OFTEL

Office of Telecommunications

OIC

Open Interconnect Consortium

OIP

Originating Identification Presentation

OIR

Originating Identification Restriction

OLT

Optical Line Termination

OMA

Open Mobile Alliance

OMA-DM

Open Mobile Alliance Device Management

OMC

Operations Maintenance Centre

ONF

Open Networking Foundation

ONU

Optical Network Unit

OPC

Originating Point Code

OPC

Operation Code

OPEX

Operational Expenditure

Optical Budget

Optical Budget

ORB

Object Request Broker

OS

Operating System

OSA

Open Service Access

OSI

Open System Interconnection

OSI Reference Model

OSI Reference Model

OSPF

Open Shortest Path First

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