My 3GPP TS 23.228 Notes

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IP multimedia subsystem concepts

The complete solution for the support of IP multimedia applications consists of terminals, IP-Connectivity Access Networks (IP CAN), and the specific functional elements of the IP multimedia core network (IM CN) subsystem described in this technical specification. Examples of IP-Connectivity Access Network are:

  • the GPRS core network with GERAN and/or UTRAN radio access networks; and
  • EPC core network and E-UTRAN radio access network; and
  • 5GS access network.

Annex U (normative) WebRTC access to IMS - network-based architecture

Abbreviations

Abbreviation Meaning Source
5GS 5G System 3GPP TS 23.228 V16.6.0 (2020-12)
API Application Program Interface 3GPP TS 23.228 V16.6.0 (2020-12)
APN Access Point Name 3GPP TS 23.228 V16.6.0 (2020-12)
AS Application Server 3GPP TS 23.228 V16.6.0 (2020-12)
BCSM Basic Call State Model 3GPP TS 23.228 V16.6.0 (2020-12)
BG Border Gateway 3GPP TS 23.228 V16.6.0 (2020-12)
BGCF Breakout Gateway Control Function 3GPP TS 23.228 V16.6.0 (2020-12)
BS Bearer Service 3GPP TS 23.228 V16.6.0 (2020-12)
CAMEL Customised Application Mobile Enhanced Logic 3GPP TS 23.228 V16.6.0 (2020-12)
CAP Camel Application Part 3GPP TS 23.228 V16.6.0 (2020-12)
CDR Charging Data Record 3GPP TS 23.228 V16.6.0 (2020-12)
CN Core Network 3GPP TS 23.228 V16.6.0 (2020-12)
CS Circuit Switched 3GPP TS 23.228 V16.6.0 (2020-12)
CSCF Call Session Control Function 3GPP TS 23.228 V16.6.0 (2020-12)
CSE CAMEL Service Environment 3GPP TS 23.228 V16.6.0 (2020-12)
DHCP Dynamic Host Configuration Protocol 3GPP TS 23.228 V16.6.0 (2020-12)
DNN Data Network Name 3GPP TS 23.228 V16.6.0 (2020-12)
DNS Domain Name System 3GPP TS 23.228 V16.6.0 (2020-12)
ECN Explicit Congestion Notification 3GPP TS 23.228 V16.6.0 (2020-12)
ENUM E.164 Number Mapping 3GPP TS 23.228 V16.6.0 (2020-12)
GGSN Gateway GPRS Support Node 3GPP TS 23.228 V16.6.0 (2020-12)
GLMS Group and List Management Server 3GPP TS 23.228 V16.6.0 (2020-12)
GMLC Gateway Mobile Location Centre 3GPP TS 23.228 V16.6.0 (2020-12)
GRUU Globally Routable User Agent URI 3GPP TS 23.228 V16.6.0 (2020-12)
GUP Generic User Profile 3GPP TS 23.228 V16.6.0 (2020-12)
HSS Home Subscriber Server 3GPP TS 23.228 V16.6.0 (2020-12)
IBCF Interconnection Border Control Function 3GPP TS 23.228 V16.6.0 (2020-12)
I CSCF Interrogating CSCF 3GPP TS 23.228 V16.6.0 (2020-12)
I-SBC Interconnect Session Border Controller Addresses the boundary requirements where service provider networks interconnect and exchange inbound and outbound SIP sessions. It integrates three IMS functional elements:
  • Interconnect Border Control Function (IBCF)
  • Inter-Working Function (IWF), and
  • Transition Gateway (TrGW).

Source

IETF Internet Engineering Task Force 3GPP TS 23.228 V16.6.0 (2020-12)
IM IP Multimedia 3GPP TS 23.228 V16.6.0 (2020-12)
IMC IMS Credentials 3GPP TS 23.228 V16.6.0 (2020-12)
IMS IP Multimedia Core Network Subsystem 3GPP TS 23.228 V16.6.0 (2020-12)
IMS ALG IMS Application Level Gateway 3GPP TS 23.228 V16.6.0 (2020-12)
IMSI International Mobile Subscriber Identifier 3GPP TS 23.228 V16.6.0 (2020-12)
IN Intelligent Network 3GPP TS 23.228 V16.6.0 (2020-12)
IP Internet Protocol 3GPP TS 23.228 V16.6.0 (2020-12)
IPv4 Internet Protocol version 4 3GPP TS 23.228 V16.6.0 (2020-12)
IPv6 Internet Protocol version 6 3GPP TS 23.228 V16.6.0 (2020-12)
IP CAN IP-Connectivity Access Network 3GPP TS 23.228 V16.6.0 (2020-12)
IP SM GW IP Short Message Gateway 3GPP TS 23.228 V16.6.0 (2020-12)
ISDN Integrated Services Digital Network 3GPP TS 23.228 V16.6.0 (2020-12)
ISIM IMS SIM 3GPP TS 23.228 V16.6.0 (2020-12)
ISP Internet Service Provider 3GPP TS 23.228 V16.6.0 (2020-12)
ISUP ISDN User Part 3GPP TS 23.228 V16.6.0 (2020-12)
IWF Interworking Function 3GPP TS 23.228 V16.6.0 (2020-12)
NP Number portability 3GPP TS 23.228 V16.6.0 (2020-12)
MAP Mobile Application Part 3GPP TS 23.228 V16.6.0 (2020-12)
MGCF Media Gateway Control Function 3GPP TS 23.228 V16.6.0 (2020-12)
MGF Media Gateway Function 3GPP TS 23.228 V16.6.0 (2020-12)
MRB Media Resource Broker 3GPP TS 23.228 V16.6.0 (2020-12)
MRFC Multimedia Resource Function Controller 3GPP TS 23.228 V16.6.0 (2020-12)
MRFP Multimedia Resource Function Processor 3GPP TS 23.228 V16.6.0 (2020-12)
NAI Network Access Identifier 3GPP TS 23.228 V16.6.0 (2020-12)
NAPT Network Address Port Translation 3GPP TS 23.228 V16.6.0 (2020-12)
NAT Network Address Translation 3GPP TS 23.228 V16.6.0 (2020-12)
NA(P)T-PT Network Address (Port-Multiplexing) Translation-Protocol Translation 3GPP TS 23.228 V16.6.0 (2020-12)
II-NNI Inter-IMS Network to Network Interface 3GPP TS 23.228 V16.6.0 (2020-12)
OSA Open Services Architecture 3GPP TS 23.228 V16.6.0 (2020-12)
P CSCF Proxy CSCF 3GPP TS 23.228 V16.6.0 (2020-12)
PCC Policy and Charging Control 3GPP TS 23.228 V16.6.0 (2020-12)
PCEF Policy and Charging Enforcement Function 3GPP TS 23.228 V16.6.0 (2020-12)
PCRF Policy and Charging Rules Function 3GPP TS 23.228 V16.6.0 (2020-12)
PDN Packet Data Network 3GPP TS 23.228 V16.6.0 (2020-12)
PDP Packet Data Protocol e.g., IP 3GPP TS 23.228 V16.6.0 (2020-12)
P GRUU Public Globally Routable User Agent URI 3GPP TS 23.228 V16.6.0 (2020-12)
PLMN Public Land Mobile Network 3GPP TS 23.228 V16.6.0 (2020-12)
PSI Public Service Identity 3GPP TS 23.228 V16.6.0 (2020-12)
PSTN Public Switched Telephone Network 3GPP TS 23.228 V16.6.0 (2020-12)
QoS Quality of Service 3GPP TS 23.228 V16.6.0 (2020-12)
RAB Radio Access Bearer 3GPP TS 23.228 V16.6.0 (2020-12)
RFC Request for Comments 3GPP TS 23.228 V16.6.0 (2020-12)
SCS Service Capability Server 3GPP TS 23.228 V16.6.0 (2020-12)
S CSCF Serving CSCF 3GPP TS 23.228 V16.6.0 (2020-12)
SDP Session Description Protocol 3GPP TS 23.228 V16.6.0 (2020-12)
SGSN Serving GPRS Support Node 3GPP TS 23.228 V16.6.0 (2020-12)
SLF Subscription Locator Function 3GPP TS 23.228 V16.6.0 (2020-12)
SSF Service Switching Function 3GPP TS 23.228 V16.6.0 (2020-12)
SS7 Signalling System 7 3GPP TS 23.228 V16.6.0 (2020-12)
SIM Subscriber Identity Module 3GPP TS 23.228 V16.6.0 (2020-12)
SIP Session Initiation Protocol 3GPP TS 23.228 V16.6.0 (2020-12)
S GW Signalling Gateway 3GPP TS 23.228 V16.6.0 (2020-12)
TAS Telephony Application Server 3GPP TS 23.228 V16.6.0 (2020-12)
T-GRUU Temporary Globally Routable User Agent URI 3GPP TS 23.228 V16.6.0 (2020-12)
THIG Topology Hiding Inter-network Gateway 3GPP TS 23.228 V16.6.0 (2020-12)
TrGW Transition Gateway 3GPP TS 23.228 V16.6.0 (2020-12)
UE User Equipment 3GPP TS 23.228 V16.6.0 (2020-12)
UMTS Universal Mobile Telecommunications System 3GPP TS 23.228 V16.6.0 (2020-12)
URL Universal Resource Locator 3GPP TS 23.228 V16.6.0 (2020-12)
USIM UMTS SIM 3GPP TS 23.228 V16.6.0 (2020-12)

Annex U Abbreviations

Abbreviation Meaning Source
eP CSCF P-CSCF enhanced for WebRTC 3GPP TS 23.228 V16.6.0 (2020-12) Annex U
WAF WebRTC Authorisation Function 3GPP TS 23.228 V16.6.0 (2020-12) Annex U
WebRTC Web Real-Time Communication 3GPP TS 23.228 V16.6.0 (2020-12) Annex U
WIC WebRTC IMS Client 3GPP TS 23.228 V16.6.0 (2020-12) Annex U
WWSF WebRTC Web Server Function 3GPP TS 23.228 V16.6.0 (2020-12) Annex U
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