TS 23.135 – Multicall Supplementary Service Stage 2
3GPP TS 23.135 is the 3GPP Technical Specification for Multicall Supplementary Service Stage 2. Its official 3GPP title is “Multicall supplementary service; Stage 2”. It is published in 17 releases (R99 to Rel-19); the latest version is 19.0.0 in Rel-19.
Stage 2 description of Multicall supplementary service for handling multiple simultaneous calls, including procedures, messages, and network entity functions.
Releases and versions of TS 23.135
| 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 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.0.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.0 | Read · Download (3GPP) |
| Rel-8 | 8.0.0 | Read · Download (3GPP) |
| Rel-7 | 7.0.0 | Read · Download (3GPP) |
| Rel-6 | 6.0.0 | Read · Download (3GPP) |
| Rel-5 | 5.0.0 | Read · Download (3GPP) |
| Rel-4 | 4.0.0 | Read · Download (3GPP) |
| R99 | 3.2.0 | Read · Download (3GPP) |
Scope of TS 23.135
Category: Services (Supplementary Services). Technology generation: 3G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 23.135
- TR 21.905 3GPP Terminology and Definitions
- TS 22.100 UMTS Service Requirements for Release '99
- TS 22.105 Telecommunication Services Framework
- TS 22.135 Multicall Supplementary Service Specification
- TS 23.009 Handover Procedures in PLMNs
- TS 23.011 Supplementary Services Technical Realization
- TS 23.018 Basic call handling in 3GPP CS domain
- TS 23.083 Call Completion Supplementary Services
- TS 24.008 NAS Call, Mobility and Session Procedures
Specifications that reference TS 23.135
Other specifications in the 23 series
- TS 23.121 UMTS/GSM Evolution Technical Spec
- TS 23.122 Idle Mode and PLMN Selection Procedures
- TS 23.125 Flow Based Charging Architecture
- TS 23.127 Virtual Home Environment Stage 2 Specification
- TS 23.137 5G Integrated Sensing Architecture
- TS 23.139 3GPP-Fixed Broadband Interworking Stage 2
- TS 23.140 Non-realtime Multimedia Messaging Service
- TS 23.141 Presence Service Stage 2 Architecture
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 23.135?
3GPP TS 23.135 is the 3GPP Technical Specification for Multicall Supplementary Service Stage 2. Stage 2 description of Multicall supplementary service for handling multiple simultaneous calls, including procedures, messages, and network entity functions.
Which 3GPP releases include TS 23.135?
TS 23.135 is published in 17 releases, from R99 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 23.135 belong to?
TS 23.135 belongs to the Services (Supplementary Services) category of 3GPP specifications. It applies to 3G networks.
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