TS 23.091 – Explicit Call Transfer (ECT) Stage 2
3GPP TS 23.091 is the 3GPP Technical Specification for Explicit Call Transfer (ECT) Stage 2. Its official 3GPP title is “Explicit Call Transfer (ECT) 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 the Explicit Call Transfer supplementary service, including functions, procedures, and information flows.
Releases and versions of TS 23.091
| 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 | 5.1.0 | Read · Download (3GPP) |
| Rel-4 | 4.1.0 | Read · Download (3GPP) |
| R99 | 3.2.0 | Read · Download (3GPP) |
Scope of TS 23.091
Category: Services (Supplementary Services). Technology generation: Multi-Gen. 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 23.091
Specifications that reference TS 23.091
- TS 23.078 CAMEL Phase 4 Stage 2 Specification
- TS 23.205 Bearer Independent CS Core Network Stage 2
- TS 23.018 Basic call handling in 3GPP CS domain
- TS 23.279 Combined CS and IMS Services (CSI) Architecture
- TS 24.067 eMLPP Supplementary Service Procedures
- TS 23.016 Subscriber Data Management Stage 2
- TS 24.091 Call Transfer Supplementary Services Stage 3
- TS 23.097 Multiple Subscriber Profile (MSP) Phase 2
Other specifications in the 23 series
- TS 23.086 Advice of Charge (AoC) Supplementary Services
- TS 23.087 User-to-User Signalling (UUS) Stage 2
- TS 23.088 Call Barring (CB) Supplementary Services Stage 2
- TS 23.090 USSD Stage 2 Specification
- TS 23.093 CCBS Supplementary Service Stage 2
- TS 23.094 Follow Me (FM) Feature Stage 2
- TS 23.096 Calling Name Presentation (CNAP) Stage 2
- TS 23.097 Multiple Subscriber Profile (MSP) Phase 2
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 23.091?
3GPP TS 23.091 is the 3GPP Technical Specification for Explicit Call Transfer (ECT) Stage 2. Stage 2 description of the Explicit Call Transfer supplementary service, including functions, procedures, and information flows.
Which 3GPP releases include TS 23.091?
TS 23.091 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 23.091 belong to?
TS 23.091 belongs to the Services (Supplementary Services) category of 3GPP specifications. It applies to Multi-Gen networks.
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