3 Definitions and abbreviations
29.2923GPPInterworking between the IP Multimedia (IM) Core Network (CN) subsystem (IMS) and MSC Server for IMS Centralized Services (ICS)Release 17TS
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].
ICE lite: The lite implementation of the Interactive Connectivity Establishment (ICE) specified in IETF RFC 8445 [69].
Full ICE: The full implementation of the Interactive Connectivity Establishment (ICE) specified in IETF RFC 8445 [69].
NAS signalling: layer 3 signalling carried over CS domain access between the UE and MSC Server as defined in 3GPP TS 24.008 [3].
For the purposes of the present document, the following terms and definitions given in 3GPP TS 24.629 [33] apply:
transferee
transferor
transfer target
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].
3PCC 3rd Party Call Control
ACR Anonymous Communication Rejection
BAIC Barring of All Incoming Calls
BAOC Barring of All Outgoing Calls
BIC-Roam Barring of Incoming Calls when Roaming outside the home PLMN country
BOIC Barring of Outgoing International Calls
BOIC-exHC Barring of Outgoing International Calls except those directed to the Home PLMN Country
CB Communication Barring
CCBS Completion of Communication to Busy Subscriber
CCNL Completion of Communications on Not Logged-in
CCNR Completion of Communications on No Reply
CD Communication Deflection
CDIV Communication DIVersion
CFNL Communication Forwarding on Not Logged-in
CFNR Communication Forwarding No Reply
CFNRc Communication Forwarding on subscriber Not Reachable
CFU Communication Forwarding Unconditional
CONF CONFerence
CS Circuit Switched
CS-MGW Circuit Switched Media Gateway
ECN Explicit Congestion Notification
ECT Explicit Communication Transfer
EVS Enhanced Voice Services
GRUU Globally Routable User Agent URI
HOLD communication HOLD
ICB Incoming Communication Barring
ICE Interactive Connectivity Establishment
ICS IM CN subsystem Centralized Services
IMS-MGW IP Multimedia Subsystem-Media Gateway Function
IuFP Iu Framing Protocol
MboIP Mb over IP
MRFP Media Resource Function Processor
MPS Multimedia Priority Service
NAS Non Access Stratum
OCB Outgoing Communication Barring
OIP Originating Identification Presentation
OIR Originating Identification Restriction
RTCP RTP Control Protocol
SDPCapNeg SDP Capability Negotiation
TDM Time Division Multiplex
TIP Terminating Identification Presentation
TIR Terminating Identification Restriction