Abbreviations
3GPP
Third-Generation Partnership Project
A
Address (DNS address record for IPv4 address)
AAAA
Address (DNS address record for IPv6 address)
ACA
Accounting Answer
ACELP
Algebraic-code-excited linear prediction
ACR
Accounting Request
AD
Analog-to-digital
ADPCM
Adaptive differential PCM
AJAX
Asynchronous JavaScript and XML
ALG
Application layer gateway
AMR
Adaptive multi-rate
API
Application Programming Interface
APN
Access Point Name
AR
Application Router
ARP
Address Resolution Protocol
ARPA
Advanced Research Projects Agency
ARPU
Average Revenue Per User
AS
Application server
A-SBG
Access session border gateway
ASN.1
Abstract syntax notation version 1
ATCF
Access Transfer Control Function
ATGw
Access Transfer Gateway
ATM
Asynchronous transfer mode
AVP ...
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