TS 22.053 – Tandem Free Operation (TFO) Stage 1
3GPP TS 22.053 is the 3GPP Technical Specification for Tandem Free Operation (TFO) Stage 1. 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.
Specifies TFO to avoid speech codec tandeming in mobile-to-mobile calls, improving speech quality and reducing bandwidth.
Releases and versions of TS 22.053
| 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 22.053
Category: Services (Speech Services). Technology generation: 2G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications that reference TS 22.053
Other specifications in the 22 series
- TS 22.041 Operator Determined Barring (ODB)
- TS 22.042 Network Identity and Timezone (NITZ)
- TS 22.043 Localised Service Area Support
- TS 22.048 Security Mechanisms for SIM Toolkit
- TS 22.057 Mobile Execution Environment (MExE) Stage 1
- TS 22.060 GPRS Stage 1 Service Description
- TS 22.066 Mobile Number Portability Stage 1
- TS 22.067 Enhanced Multi-Level Precedence and Pre-emption Service
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 22.053?
3GPP TS 22.053 is the 3GPP Technical Specification for Tandem Free Operation (TFO) Stage 1. Specifies TFO to avoid speech codec tandeming in mobile-to-mobile calls, improving speech quality and reducing bandwidth.
Which 3GPP releases include TS 22.053?
TS 22.053 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 22.053 belong to?
TS 22.053 belongs to the Services (Speech Services) category of 3GPP specifications. It applies to 2G networks.
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