Black belt consultants is our quality assurance
Black belt consultants is our quality assurance

Abbreviation list

3GPP

Third Generation Partnership Project

3GPP2

Third Generation Partnership Project 2

A-RACF

Access Resource Admission and Control Function

AAA

Authentication, Authorization, Accounting

AAL

ATM Adaptation Layer

ABNF

Augmented Bachus-Naur Form

ACK

Acknowledge

AF

Assured Forwarding

AF

Application Function

AGCF

Access Gateway Control Function

AGF

Access Gateway Function

AH

Authentication Header

AK

Anonymity Key

AKA

Authentication and Key Agreement

ALG

Application Layer Gateway

AMF

Authentication Management Field

AMF

Access Management Function

AMR

Adaptive Multi Rate

AMR-WB

Adaptive Multi Rate – Wide Band

AP

Access Point

AP

Authentication Proxy

AP

Aggregation Proxy

API

Application Programming Interface

APN

Access Point Name

ARF

Access Relay Function

AS

Access Stratum

AS

Autonomous System

AS

Application Server

ASN.1

Abstract Syntax Notation One

ATIS

Alliance for Telecommunications Industry Solutions

ATM

Asynchronous Transfer Mode

AuC

Authentication Centre

AUID

Application Unique ID

AUTN

Authentication Token

AVP

Attribute Value Pair

AVP

Audio Video Profile

B2BUA

Back-To-Back User Agent

BA

Behaviour Aggregate

BB

Bandwidth Broker

BE

Best Effort

BG

Border Gateway

BGC

Border Gateway Controller

BGCF

Breakout Gateway Control Function

BGF

Border Gateway Function

BGP

Border Gateway Protocol

BICC

Bearer Independent Call Control Protocol

BM-SC

Broadcast/Multicast Service Centre

BRAS

Broadband Remote Access Server

BS

Base Station

BS

Billing System

BSC

Base Station Controller

BSF

Bootstrapping Server Function

BSS

Base Station System

BTF

Basic Transport Function

BTS

Base Transceiver System

C-BGF

Core Border Gateway Function

CBQ

Class Based Queuing

CBR

Constant Bitrate

CC

Country Code

CCF

Charging Control Function

CDF

Charging Data Function

CDR

Charging Data Record

CDR

Call Detail Record

CGF

Charging Gateway Function

CIC

Circuit Identity Code (ISUP)

CIC

Call Instance Code (BICC)

CIDR

Classless Inter Domain Routing

CK

Cipher Key

CLF

Connectivity Session Location and Repository Function

CMS

Cryptographic Message Syntax

CMTS

Cable Modem Termination System

CN

Core Network

CNG

Customer Network Gateway

CNGCF

CNG Configuration Function

CoA

Care-of-Address

CoS

Class of Service

CPE

Customer Premises Equipment

CPL

Call Processing Language

CR-LDP

Constraint based Routing LDP

CRC

Cyclic Redundancy Check

CRF

Charging Rules Function

CRTP

Compressed RTP

CS

Circuit Switched

CSCF

Call/Session Control Function

CSMA

Carrier Sense Multiple Access

CT

Client Transaction

CTF

Charging Trigger Function

CWMP

CPE WAN Management Protocol

DA

Destination Address

DF

Don’t Fragment

DES

Data Encryption Standard

DHCP

Dynamic Host Configuration Protocol

Diffserv

Differential Services

DL

Downlink

DMZ

Demilitarized Zone

DNS

Domain Name System

DOCSIS

Data Over Cable Service Interface Specification

DSAI

Dynamic Service Activation Information

DSCP

Diffserv Code Point

DSLAM

Digital Subscriber Line Access Multiplexer

DSP

Digital Signalling Processor

DTMF

Dual-Tone Multi-Frequency

E.164

The format for international telephone numbers

EAP

Extensible Authentication Protocol

EBCF

Event Based Charging Function

ECF

Event Charging Function (R5)

EDGE

Enhanced Data Rates for GSM Evolution

EF

Expedited Forwarding

EIGRP

Enhanced Interior Gateway Routing Protocol

EIR

Equipment Identity Register

EIS

Early IMS Security

ENUM

E.164 Number Mapping

ESP

Encapsulating Security Payload

ETH

Ethernet

ETSI

European Telecommunications Standards Institute

FA

Foreign Agent

FCS

Frame Check Sequence

FDDI

Fiber Distributed Data Interface

FEC

Forwarding Equivalence Class

ffs

For Further Study

FIN

Finish

FTP

File Transfer Protocol

FQDN

Fully Qualified Domain Name

FW

Firewall

GAA

Generic Authentication Architecture

GBA

Generic Bootstrapping Architecture

GCF

Gateway Control Function

GERAN

GSM EDGE Radio Access Network

GGSN

Gateway GPRS Support Node

GMPLS

Generalized MPLS

GMSC

Gateway MSC

GPRS

General Packet Radio Service

GRUU

Globally Routable User Agent URI

GRX

GPRS Roaming Exchange

GSM

Global System for Mobile Communication

GW

Gateway

HA

Home Agent

HLR

Home Location Register

HMAC

Hashed Key Message Authentication Check

HNW

Home Network

HSS

Home Subscriber Server

HTTP

Hypertext Transfer Protocol

I-BGF

Interworking Border Gateway Function

I-CSCF

Interrogating CSCF

IAD

Intelligent Access Device

IANA

Internet Assigned Numbers Authority

IAPP

Internet Access Point Protocol

IBCF

Interconnection Border Control Function

ICE

Interactive Connectivity Establishment

ICMP

Internet Control Message Protocol

ICID

IMS Charging Identity

ICQ

I Seek You

IETF

Internet Engineering Task Force

IFC

Initial Filter Criteria

IHL

Internet Header Length

IK

Integrity Key

IKE

Internet Key Exchange

IM

Instant Message

IMAP

Internet Mail Access Protocol

IMPI

IMS Private Identity

IMPU

IMS Public Identity

IMS

IP Multimedia Subsystem

IMSI

International Mobile Subscriber Identity

IMT

International Mobile Telecommunications

Intserv

Integrated Services

IOI

Inter Operator Identifier

IP

Internet Protocol

IP-CAN

IP Connectivity Access Network

IP-PBX

IP-Private Branch Exchange

IPsec

IP Security

IPTV

Internet Protocol Television

IPX

IP Exchange

IS

Intermediate system

ISC

IMS Service Control Interface

ISDN

Integrated Services Digital Network

ISIM

IP Multimedia Subscriber Identity Module

ISP

Internet Service Provider

ISUP

ISDN User Part

IRS

Implicit Registration Set

ITSP

Internet Telephony Service Provider

ITU

International Telecommunication Union

IVR

Interactive Voice Response

IWF

Interworking Function

K

Secret Key

Kc

Ciphering Key (<R99)

Ki

Authentication Key (<R99)

LAN

Local Area Network

LDAP

Lightweight Directory Access Protocol

LDP

Label Distribution Protocol

LER

Label Edge Router

LLC

Logical Link Control

LSP

Label Switched Path

LSR

Label Switching Router

MOS

Mean Opinion Score

MAC

Medium Access Control

MCC

Mobile Country Code

MEGACO

Gateway Control Protocol (H.248)

MF

More Fragment

MGCF

Media Gateway Control Function

MG

Media Gateway

MGC

Media Gateway Controller

MGCP

Media Gateway Control Protocol (Cisco)

MGF

Media Gateway Function

MGW

Media Gateway

MIB

Management Information Base

MIME

Multipurpose Internet Mail Extensions

MNC

Mobile Network Code

MPLS

Multiprotocol Label Switching

MPLS-TE

MPLS for Traffic Engineering

MRF

Media Resource Function

MRFC

Media Resource Function Controller

MRFP

Media Resource Function Processor

MS

Mobile Station

MSC

Mobile Switching Centre

MSCF

Messaging Service Control Function

MSRP

Message Session Relay Protocol

MSIN

Mobile Subscriber Identity Number

MT

Mobile Termination

MTP

Message Transfer Part

MTU

Maximum Transfer Unit

NACF

Network Access Configuration Function

NAF

Network Application Function

NAPTR

Naming Authority Pointer Record

NAS

Network Access Server

NASS

Network Attachment Subsystem

NAT

Network Address Translation

NAT-PT

NAT with Protocol Translation

NBA

NASS Bundled Authentication

NE

Network Element

NIC

Network Interface Card

OMA

Open Mobile Alliance

OSI

Open Systems Interconnection

OSPF

Open Shortest Path First

P-CSCF

Proxy CSCF

PAN

Personal Area Network

PBX

Private Branch Exchange

PCC

Policy and Charging Control

PCEF

Policy and Charging Enforcement Function

PCM

Pulse Code Modulation

PCRF

Policy and Changing Resource Function

PCU

Packet Control Unit

PDA

Personal Digital Assistant

PDBF

Policy Database Function

PDC

Personal Digital Cellular

PDF

Policy Decision Function

PDG

Packet Data Gateway

PDN

Packet Data Network

PDP

Packet Data Protocol

PDP

Policy Decision Point

PEP

Policy Enforcement Point

PES

PSTN/ISDN Emulation Subsystem

PESQ

Perceptual Evaluation of Speech Quality

PGP

Pretty Good Privacy

PHB

Per Hop Behaviour

PHY

Physical Layer

PIB

Policy Information Base

PLMN

Public Land Mobile Network

PNA

Presence Network Agent

PoC

Push-to-talk over Cellular

POP

Post Office Protocol

POTS

Plain Old Telephone System

PPP

Point-to-Point Protocol

PPP

Presentity Presence Proxy

PQ

Priority Queuing

PRI

Primary Rate Interface

PS

Packet Switched

PS

Power Safe Mode

PSH

Push

PSI

Public Service Identity

PSK

Phase Shift Keying

PSTN

Public Switched Telephone Network

PTT

Push-To-Talk

QoS

Quality of Service

RACF

Resource Admission and Control Function

RACS

Resource and Admission Control Subsystem

RADIUS

Remote Authentication Dial In User Service

RAN

Radio Access Network

RAND

Random Challenge

RAS

Remote Access Server

RCEF

Resource Control Enforcement Function

RED

Random Early Detection

RES

Response

RF

Radio Frequency

RFC

Request For Comments

RGF

Residential Gateway Function

RGW

Residential Gateway

RIP

Routing Information Protocol

RLS

Resource List Server

RNC

Radio Network Controller

ROHC

Robust Header Compression

RST

Reset

RSVP

Resource Reservation Protocol

RTCP

RTP Control Protocol

RTP

Real Time Transport Protocol

RTSP

Real Time Streaming Protocol

S-CSCF

Serving CSCF

S/MIME

Secure Mime

SA

Security Association

SA

Source Address

SAD

Security Association Database

SAP

Service Access Point

SAP

Session Announcement Protocol

SBG

Session Border Gateway

SCS

Service Capability Server

SCTP

Stream Control Transmission Protocol

SDP

Session Description Protocol

SEG

Security Gateway

SGF

Signalling Gateway Function

SGSN

Serving GPRS Support Node

SGW

Signalling Gateway

SIGTRAN

Signalling Transport

SIM

Subscriber Identity Module

SIP

Session Initiation Protocol

SIP-I

SIP and ISUP/BICC Interworking

SIP-T

SIP for Telephones

SLA

Service Level Agreement

SLF

Subscription Locator Function

SMTP

Simple Mail Transport Protocol

SMS

Short Message Service

SNMP

Simple Network Management Protocol

SPA

Service Provider API

SPC

Signalling Point Code

SPD

Security Policy database

SPDF

Service Policy Decision Function

SRES

Signed Response

SRV

Service Record

SS

Supplementary Service

SS7

Signalling System number 7

SSH

Secure Shell

SSID

Service Set Identifier

SSL

Secure Socket Layer

SSRC

Synchronizing Source

ST

Server Transaction

STUN

Simple Traversal of UDP through NAT

SYN

Synchronize

TA

Transmitter Address

TAS

Telephony Application Server

TBCP

Talk Burst Control Protocol

tbd

To Be Decided

TCAP

Transaction Capabilities Application Part

TCP

Transmission Control Protocol

TDM

Time Division Multiplex

TE

Terminal Equipment

TFTP

Trivial File Transfer Protocol

TGCF

Trunking Gateway Control Function

THIG

Topology Hiding Gateway

TIM

Traffic Indication Map

TISPAN

Telecoms & Internet Converged Services & Protocols for Advanced Networks

TLS

Transport Layer Security

ToS

Type of Service

TPF

Traffic Plane Function

TrGW

Translation Gateway

TTL

Time To Live

TURN

Traversal Using Relay NAT

UA

User Agent

UAAF

User Authentication  and  Authorization Function

UAC

User Agent Client

UAS

User Agent Server

UBR

Unspecified Bit Rate

UDP

User Datagram Protocol

UE

User Equipment

UMTS

Universal Mobile Telecommunications System

UICC

Universal Integrated Circuit Card

UL

Uplink

UPnP

Universal Plug and Play

UPSF

User Profile Server Function

USIM

Universal Subscriber Identity Module

URG

Urgent

URI

Uniform Resource Identifier

UTRAN

UMTS Terrestrial Radio Access Network

VBR

Variable Bit Rate

VC

Virtual Circuit

VCC

Voice Call Continuity

VCC

Virtual Channel Connection

VCI

Virtual Channel Identifier

VGCF

Voice Gateway Control Function

VGW

Voice Gateway

VLAN

Virtual LAN

VLR

Visitor Location Register

VoA

Voice over ATM

VoF

Voice over Frame Relay

VoIP

Voice over IP

VoN

Voice over Networks

VPI

Virtual Path Identifier

VPN

Virtual Private Network

WAG

Wireless Application Gateway

WAN

Wide Area Network

WFQ

Weight Fair Queuing

WiFi

WiFi (No abbreviation!)

WLAN

Wireless LAN

WM

Wireless Medium

WPAN

Wireless PAN

WRED

Weighted Random Early Detection

XCAP

XML Configuration Access Protocol

XDMS

XML Data Management Server

XML

Extensible Markup Language

XRES

Expected Response