TS 23.231 – SIP-I based CS core network stage 2
3GPP TS 23.231 is the 3GPP Technical Specification for SIP-I based CS core network stage 2. Its official 3GPP title is “SIP-I based circuit-switched core network”. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.
Defines stage 2 for SIP-I based CS core network with IP transport, covering architecture, interfaces, and MGW selection procedures.
Releases and versions of TS 23.231
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.0.0 | Read · Download (3GPP) |
| Rel-16 | 16.0.0 | Read · Download (3GPP) |
| Rel-15 | 15.0.0 | Read · Download (3GPP) |
| Rel-14 | 14.0.0 | Read · Download (3GPP) |
| Rel-13 | 13.0.0 | Read · Download (3GPP) |
| Rel-12 | 12.0.0 | Read · Download (3GPP) |
| Rel-11 | 11.1.1 | Read · Download (3GPP) |
| Rel-10 | 10.0.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.0 | Read · Download (3GPP) |
| Rel-8 | 8.4.0 | Read · Download (3GPP) |
Scope of TS 23.231
Category: Core Network (CS Core). Technology generation: 3G. Network layer: CoreNetwork.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Advanced. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 23.231
- TS 23.108 GSM Radio Interface Layer 3 Procedures
- TS 48.008 BSS-MSC Interface Layer 3 Procedures
- TS 23.009 Handover Procedures in PLMNs
- TS 24.008 NAS Call, Mobility and Session Procedures
- TR 21.905 3GPP Terminology and Definitions
- TS 23.172 Service Change and UDI Fallback (SCUDIF)
- TS 29.235 SIP-I CS Core Network Interworking
- TS 25.415 Iu Interface User Plane Protocol
- TS 29.414 Nb Interface Bearer Transport & Control Protocols
- TS 23.014 DTMF Support in 3GPP Systems
- TS 23.003 Numbering, Addressing and Identification
- TS 23.002 3GPP System Architecture Overview
Specifications that reference TS 23.231
- TS 29.007 PLMN-PSTN/ISDN Interworking Requirements
- TS 23.153 Out-of-Band Transcoder Control Stage 2
- TS 23.205 Bearer Independent CS Core Network Stage 2
- TS 23.009 Handover Procedures in PLMNs
- TS 29.232 Mc Interface Protocol Profile
- TS 29.414 Nb Interface Bearer Transport & Control Protocols
- TS 26.102 Mapping of AMR and other codecs to interfaces
- TS 29.292 IMS Centralized Services (ICS) Interworking
- TS 29.235 SIP-I CS Core Network Interworking
- TS 29.231 Application of SIP-I Protocols to CS Core Network
- TS 23.284 Local Call Local Switch Stage 2
- TS 29.332 MGCF-IM-MGW Interface Protocol (Mn)
Other specifications in the 23 series
- TS 23.222 Common API Framework (CAPIF)
- TS 23.226 Global Text Telephony (GTT) Stage 2
- TS 23.227 UE Resource Scheduling and Application Management
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 23.234 3GPP-WLAN Interworking Index
- TS 23.236 Intra Domain Connection of RAN Nodes to Multiple CN Nodes
- TS 23.237 IMS Service Continuity (ISC) Stage 2
- TS 23.240 3GPP Generic User Profile (GUP) Architecture
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 23.231?
3GPP TS 23.231 is the 3GPP Technical Specification for SIP-I based CS core network stage 2. Defines stage 2 for SIP-I based CS core network with IP transport, covering architecture, interfaces, and MGW selection procedures.
Which 3GPP releases include TS 23.231?
TS 23.231 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 23.231 belong to?
TS 23.231 belongs to the Core Network (CS Core) category of 3GPP specifications. It applies to 3G networks.
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