Glossary

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

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AT

Authorization Token

AT

Action Time

ATB

All Trunks Busy

ATCF

Access Transfer Control Function

ATDPCH

Auxiliary Transmit Diversity Pilot Channel

ATGw

Access Transfer Gateway

ATI

Any Time Interrogation

ATIM

Announcement Traffic Indication Message

ATIS

Alliance for Telecommunications Industry Standards

ATM

Asynchronous Transfer Mode

ATM Forum

ATSSS

Access Traffic Steering, Switching and Splitting

Attendant Console

Attenuation

AU

Administrative Unit

AuC

Authentication Centre

Audiotex

AUG

Administrative Unit Group

AUI

Attachment Unit Interface

AUID

Application Unique ID

AUSF

Authentication Server Function

AUTHBS

Base Station Authentication Response

Authentication

AUTHR

Authentication Response

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