3 Definitions and abbreviations

24.4103GPPCommunication HOLD (HOLD) PSTN/ISDN simulation servicesNGN Signalling Control ProtocolProtocol specificationRelease 8TISPANTS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in TS 181 002 [5] apply.

3.2 Abbreviations

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

ACR/CB Anonymous Communication Rejection and Communication Barring

AS SIP Application Server

CDIV Communication DIVersion

CSCF Call Session Control Function

ECT Explicit Communication Transfer

HOLD communication session HOLD

IBCF Interconnect Border Control Function

I-CSCF Interrogation-CSCF

IMS IP Multimedia Subsystem

IP Internet Protocol

ISDN Integrated Service Data Network

MCID Malicious Communication IDentification

NGN Next Generation Network

OIP Originating Identification Presentation

OIR Originating Identification Restriction


PSTN Public Switched Telephone Network


SDP Session Description Protocol

SIP Session Initiation Protocol

TIP Terminating Identification Presentation

TIR Terminating Identification Restriction

UE User Equipment