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

8 9 10 11 12 ...

ECSI

Extended Coverage System Information

EGPRS

Enhanced General Packet Radio Service

EGPRS2

Enhanced General Packet Radio Service phase 2

EGPRS2A

Enhanced General Packet Radio Service phase 2 A

EGPRS2B

Enhanced General Packet Radio Service phase 2 B

EGSM

Extended GSM

EIFS

Extended Interframe Space

eMBMS

Evolved Multimedia Broadcast Multicast Services

eMBMS Gateway

eMBMS Gateway

eMOS

estimated Mean Opinion Score

Encapsulated PDU

Encapsulated PDU

Encapsulated PDU Fragment

Encapsulated PDU Fragment

Encoder Tail Bits

Encoder Tail Bits

Enhanced Access Channel Preamble

Enhanced Access Channel Preamble

Enhanced Access Channel Slot

Enhanced Access Channel Slot

Enhanced Access Data Enhanced

Enhanced Access Data Enhanced

Enhanced Access Header

Enhanced Access Header

Enhanced Access Probe

Enhanced Access Probe

Enhanced Access Probe Sequence

Enhanced Access Probe Sequence

Enterprise Server

Enterprise Server

EPS

Evolved Packet System

EPS-AKA

EPS - Authentication and Key Agreement

Erroneous

Erroneous

ES-IS

End System to Intermediate System

8 9 10 11 12 ...