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

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APS

Access Probe Sequence

APSD

Automatic Power Save Delivery

APT

Advanced Persistent Threat

AR

Autonomous Registration

AR

Area Router

AR_ADDR

Access Request Address

ARFCN

Absolute Radio Frequency Channel Number

ARI

Assist Request Instructions

ARIB

Association of Radio Industries and Businesses

ARJ

Admission Reject

ARL

Adjusted Ring Length

ARP

Allocation and Retention Priority

ARP

Address Resolution Protocol

ARPA

Advanced Research Projects Agency

ARPF

Authentication Credential Repository and Processing Function

ARPU

Average Revenue Per User

ARQ

Automatic Repeat Request

ARU

Audio Response Unit

AS

Application Server

ASA

Access Sub-attempt

ASA

Authorised Shared Access

ASBR

Autonomous System Boundary Router

ASCII

American Standard Code for Information Interchange

ASE

Application Service Element

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