TS 24.091 – Call Transfer Supplementary Services Stage 3
3GPP TS 24.091 is the 3GPP Technical Specification for Call Transfer Supplementary Services Stage 3. It is published in 17 releases (R99 to Rel-19); the latest version is 19.0.0 in Rel-19.
Stage 3 specification for Explicit Call Transfer (ECT) procedures at the radio interface, including invocation, notification, and error handling.
Releases and versions of TS 24.091
| 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 | 5.0.0 | Read · Download (3GPP) |
| Rel-4 | 4.0.1 | Read · Download (3GPP) |
| R99 | 3.0.0 | Read · Download (3GPP) |
Scope of TS 24.091
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 24.091
- TS 22.088 Call Restriction Supplementary Services
- TS 22.090 USSD Stage 1 Specification
- TS 22.091 Explicit Call Transfer (ECT) Stage 1
- TS 23.011 Supplementary Services Technical Realization
- TS 23.081 Call Identification Supplementary Services Stage 2
- TS 23.082 Call Forwarding Supplementary Services Stage 2
- TS 23.083 Call Completion Supplementary Services
- TS 23.084 Multi Party (MPTY) Service Stage 2 Description
- TS 23.085 Closed User Group (CUG) Supplementary Service Stage 2
- TS 23.086 Advice of Charge (AoC) Supplementary Services
- TR 21.905 3GPP Terminology and Definitions
- TS 23.088 Call Barring (CB) Supplementary Services Stage 2
Specifications that reference TS 24.091
Other specifications in the 24 series
- TS 24.086 Advice of Charge (AoC) Supplementary Services
- TS 24.087 User-to-User Signalling (UUS) Stage 3
- TS 24.088 Call Barring Supplementary Service Procedures
- TS 24.090 USSD Stage 3 Protocol Specification
- TS 24.093 CCBS Supplementary Service Stage 3
- TS 24.096 Name Identification Supplementary Services Procedures
- TS 24.103 Telepresence Protocol for IMS
- TS 24.105 ACDC Management Object Specification
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 24.091?
3GPP TS 24.091 is the 3GPP Technical Specification for Call Transfer Supplementary Services Stage 3. Stage 3 specification for Explicit Call Transfer (ECT) procedures at the radio interface, including invocation, notification, and error handling.
Which 3GPP releases include TS 24.091?
TS 24.091 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 24.091 belong to?
TS 24.091 belongs to the Services (Supplementary Services) category of 3GPP specifications. It applies to Multi-Gen networks.
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