3 Definitions, symbols and abbreviations

24.5243GPPArchitecture, functional description and signallingHosted enterprise servicesRelease 17TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TS 22.519 [14], 3GPP TS 24.229 [15] and ETSI TS 183 043 [16] apply:

3.2 Abbreviations

For the purposes of the present document, the following abbreviations apply:

AGCF Access Gateway Control Function

AGF Access Gateway Function

AS Application Server

BGCF Breakout Gateway Control Function

BGF Border Gateway Function

CNGCF Customer Network Gateway Configuration Function

CS Circuit Switched

CSCF Call Session Control Function

HES Hosted Enterprise Services

I-BGF Interconnection-Border Gateway Function

I-CSCF Interrogating-Call Session Control Function

IFC Initial filter Criteria

IMS IP Multimedia Subsystem

IN Intelligent Network

IP Internet Protocol

IPCAN IP Connectivity Access Network

ISC IMS Service Control

ISDN Integrated Services Digital Network

LDAP Lightweight Directory Access Protocol

MGCF Media Gateway Control Function

MGF Media Gateway Function

MRFC Multimedia Resource Function Controller

MRFP Multimedia Resource Function Processor

NASS Network Attachment SubSystem

NGCN Next Generation Corportate Network

NGN Next Generation Network

NGN Next Generation Network

P-CSCF Proxy-Call Session Control Function

PES PSTN/ISDN Emulation Subsystem

PSTN Public Switched Telephony Network

RACS Resource and Admission Control Subsystem

RG Residential Gateway

SCP Service Control Functio

S-CSCF Serving-Call Session Control Function

SGF Signalling Gateway Function

SIP Session Initiation Protocol

SLF Subscription Locator Function

SPDF Service-based Policy Decision Function

T-MGF Trunking-Media Gateway Function

UE User Equipment

UEE User Equipment Emulation

UPSF User Profile Server Function

URI Uniform Resource Identifier

URN Uniform Resource Name

VGW Voice over IP Gateway