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

6 7 8 9 10 ...

HiperLan1

High Performance Radio LAN

HLR

Home Location Register

HLR

Home Location Register (3GPP2)

HLS

Higher Layer Split

HOLD

Communication Hold

Hold Mode

Hold Mode

Hopping Pilot Beacon

Hopping Pilot Beacon

Host Name Resolution

Host Name Resolution

HPLMN

Home Public Land Mobile Network

HTML

Hypertext Markup Language

Idle Handoff

Idle Handoff

Idle mode or Idle State

Idle mode or Idle State

IEEE 802.11 Wireless

IEEE 802.11

IEEE 802.15 Wireless Personal Area Networks

IEEE 802.15 Wireless Personal Area Networks

IEEE 802.16 Broadband Wireless Metropolitan Area Networks

IEEE 802.16 Broadband Wireless Metropolitan Area Networks

IFL

International Frequency List

ILMI

Integrated Local Management Interface

IMS-ALG

IMS Application Level Gateway

In Band Signalling

In Band Signalling

INTELSAT

International Telecommunication Satellite Organization

Interleaving

Interleaving

Internet Telephony

Internet Telephony

Intra Base Station Frame Handler

Intra Base Station Frame Handler

6 7 8 9 10 ...