Skip to content
Join the Live Open Session - Introduction to 5G, 27th October, 13:00 (UK Time). Free for Unlimited Access users | £95.00 for non-members
We’re attending MWC Barcelona 2026
From 2–5 March 2026, meet the Mpirical team and explore industry-led telecoms training. Find us in Hall 4, Stand CS300
Glossary header - telecoms antenna at height over fields

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

24 25 26 27 28 ...

Null Modem

Null Modem

Null Traffic Channel Data

Null Traffic Channel Data

Nyquist Theorem

Nyquist Theorem

OBEX

Object EXchange Protocol

Object

Object

OFTEL

Office of Telecommunications

OPEX

Operational Expenditure

Optical Budget

Optical Budget

OSI Reference Model

OSI Reference Model

Overhead

Overhead

Overlay Network

Overlay Network

Packet

Packet

Packet error Ratio

Packet error Ratio

Packet Filtering

Packet Filtering

Packet Idle Mode

Packet Idle Mode

Packet mode

Packet mode

PageState

PageState

Paired

Paired

Park Mode

Park Mode

Passkey

Passkey

PBB-TE

Provider Backbone Bridge Traffic Engineering

PCEF

Policy and Charging Enforcement Function

PDCP (LTE)

Packet Data Convergence Protocol

PDP Address

PDP Address

24 25 26 27 28 ...