TS 23.053 – Tandem Free Operation (TFO) Stage 2
3GPP TS 23.053 is the 3GPP Technical Specification for Tandem Free Operation (TFO) Stage 2. Its official 3GPP title is “Tandem Free Operation (TFO)”. It is published in 16 releases (Rel-4 to Rel-19); the latest version is 19.0.0 in Rel-19.
Defines stage 2 service description for Tandem Free Operation between GSM and UMTS to improve speech quality by eliminating double transcoding in mobile-to-mobile calls.
Releases and versions of TS 23.053
| 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) |
Scope of TS 23.053
Category: Services (Voice 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 23.053
Specifications that reference TS 23.053
Other specifications in the 23 series
- TS 23.045 GSM Group 3 Facsimile Service Procedures
- TS 23.046 GSM Facsimile Group 3 Service Procedures
- TS 23.048 Secured Packets Structure for SMS and UICC Management
- TS 23.050 UMTS Network Principles and Architecture
- TS 23.054 Shared Interworking Function (SIWF) Stage 2
- TS 23.057 Mobile Execution Environment (MExE) Specification
- TS 23.060 GPRS Stage 2 Service Description
- TS 23.066 Mobile Number Portability Technical Realization
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 23.053?
3GPP TS 23.053 is the 3GPP Technical Specification for Tandem Free Operation (TFO) Stage 2. Defines stage 2 service description for Tandem Free Operation between GSM and UMTS to improve speech quality by eliminating double transcoding in mobile-to-mobile calls.
Which 3GPP releases include TS 23.053?
TS 23.053 is published in 16 releases, from Rel-4 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 23.053 belong to?
TS 23.053 belongs to the Services (Voice Services) category of 3GPP specifications. It applies to Multi-Gen networks.
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