3G

Third Generation (when speaking of Third Generation Mobile Systems)

ACA

Australian Communications Authority (Australian regulatory body)

ACCC

Australian Competition and Consumer Commission (Australian regulator)

ACE

Automatic Calling Equipment

ADSL

Asymmetric Digital Subscriber Loop

ADSL Lite

A variant of ADSL

AGCOM

L'Autorit per le Garanzie nelle Communicazioni (Italian regulator)

ANATEL

Ag ncia Nacional de Telecomunica es (Brazilian regulator)

ANFP

Access Network Frequency Plan

ANSI

American National Standards Institute

API

Application Programming Interface

ART

Autorit de R gulation des T l communications (French regulator)

AT&T

American Telephone and Telegraph Corporation (US company)

ATM

Asynchronous Transfer Multiplex

Austel

Australian Telecommunications Authority (former Australian regulator)

BS

Base Station (within GSM architecture)

BSC

Base Station Controller (within GSM architecture)

BT

BT plc is the UK former incumbent monopolist

BTA

Basic Telecommunications Agreement (of the World Trade Organisation)

CAMEL

Customised Applications for Mobile Network Enhanced Logic

CCBS

Call Completion to Busy Subscriber

CDSL

Consumer DSL

CEN

Comit Europ en de Normalisation (or European Committee for Standardisation)

CENELEC

Comit Europ en de Normalisation Electrotechnique (or European Committee for Electrotechnical Standardisation)

CLEC

Competing Local Exchange Carrier (a US local service operating company competing with the former monopolist)

CLI

Calling Line Identity

CMT

Comisi n del Mercado de las Telecomunicaciones (Spanish regulator)

CPI

Consumer Prices Index

CPS

Carrier Pre-Selection

CRTC

Canadian Radio and TV Commission (Canadian regulator)

CSI

Customer Site Interconnect

DLE

Digital Local Exchange

DMSU

Digital Main Switching Unit (UK term for trunk or tandem exchange)

DNIC

Data Network Identification Code

DNS

Domain Name Server

DSL

Digital Subscriber Loop

DSLAM

DSL Access Multiplexer

DTI

Department...