GLOSSARY OF TERMS

3GPP: 3rd Generation Partnership Project

AS: Application Server

BGCF: Breakout Gateway Control Function

CCF: Charging Collector Function

CDMA: Code Division Multiple Access

CDR: Charging Data Record

CSCF: Call/Session Control Function

DSL: Digital Subscriber Line

ETSI: European Telecommunications Standards Institute

FMC: Fixed Mobile Convergence

GPRS: General Packet Radio Service

GSM: Global System for Mobile Communications

HSS: Home Subscriber Server

ICID: IMS Charging Identity

I-CSCF: Interrogating Call/Session Control Function

IETF: Internet Engineering Task Force

IM-SSF: IP Multimedia Service Switching Function

IMS: IP Multimedia Subsystem

ITU: International Telecommunication Union

IMS-MGW: IP Multimedia Subsystem - Media Gateway Function

LAN: Local-Area Network

MGCF: Media Gateway Control Function

MRF: Multimedia Resource Function

MRFC: Multimedia Resource Function Controller

MRFP: Multimedia Resource Function Processor

MVNO: Mobile Virtual Network Operator

NGN: Next Generation Network

OMA: Open Mobile Alliance

OSA: Open Service Architecture

OSA-SCS: Open Service Access-Service Capability Server

P-CSCF: Proxy Call/Session Control Function

PSTN: Public Switched Telephone Network

S-CSCF: Serving Call/Session Control Function

SGF: Signaling Gateway Function

SIP: Session Initiation Protocol

SLF: Subscriber Location Function

UMTS: Universal Mobile Telecommunications System

VoIP: Voice over IP

WCDMA: Wideband Code Division Multiple Access

WLAN: Wireless Local-Area Network

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