3GPP

Third Generation Partnership Project

AAA

authentication, authorisation and accounting

AAL

ATM adaptation layer

AAP

alternative approval process (ITU-T)

ABNF

augmented Backus-Naur form

ACD

automatic call distributor

ACELP

algebraic CELP

ACF

admission confirm

ACK

acknowledgement

ACM

address complete message

ADPCM

adaptive differential PCM

ADSL

asymmetric digital subscriber line

AINI

ATM internetwork interface

ALC

active level control

ALG

application level gateway

ANM

answer message

API

application programming interface

APM

application transport mechanism/message

APP

application transport parameter

ARJ

admission reject

ARQ

admission request

AS

Applicability Statement (IETF)

ASL

active speech level

ASN.1

abstract syntax notation number 1

ASP

application server process

ASR

automatic speech recognition

ATM

asynchronous transfer mode

ATM-F

ATM Forum

AVT

Audio/Video Transport (IETF)

AXE

automatic exchange equipment

BC

bearer control (layer)

BCF

bearer confirm

BCF

bearer control function

BCP

Best Current Practice (IETF)

BDT

Telecommunication Development Bureau

BE

border element

BER

basic encoding rule

BES

back-end services

BESIWF

BES interworking function

BGP

border gateway protocol

BHCA

busy-hour call attempt

BICC

bearer-independent call control

BIWF

bearer interworking function

BLES

broadband loop emulation service

BR

Radiocommunication Bureau

BRAIN

broadband radio access for IP-based networks

BRJ

bearer reject

BRN

bearer relay node

BRQ

bearer request

C7

CCITT Signalling System No 7

CA

certificate authority

CAC

connection admission control

CBC

call bearer connection

CBR

constant bit rate

CC

call control (layer)

CD

call deflection

CDR

call detail record

CELP

code-excited linear prediction

CGI

common gateway interface

CIC

circuit identification code

CIDR

classless inter-domain routing

CLI

calling line identity

CMN

call mediation node

CMN