TS 02.53 – Tandem Free Operation (TFO) Stage 1 Description
3GPP TS 02.53 is the 3GPP Technical Specification for Tandem Free Operation (TFO) Stage 1 Description. It is published in 2 releases (R96 to R98); the latest version is 7.0.1 in R98.
Specifies TFO feature to avoid dual GSM speech codecs in mobile-to-mobile calls, improving speech quality and reducing bandwidth requirements.
Releases and versions of TS 02.53
| Release | Latest version | Links |
|---|---|---|
| R98 | 7.0.1 | Read · Download (3GPP) |
| R96 | 5.1.0 | Read · Download (3GPP) |
Scope of TS 02.53
Category: Services (Speech Services). Technology generation: 2G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Other specifications in the 02 series
- TS 02.41 Operator Determined Barring (ODB) Network Feature
- TS 02.42 Network Identity and Timezone (NITAD)
- TS 02.43 Localised Service Area Support Specification
- TS 02.48 Security Mechanisms for SIM Application Toolkit
- TS 02.56 GSM Cordless Telephony System (CTS) Service Aspects
- TS 02.57 Mobile Station Application Execution Environment
- TS 02.60 GPRS on GSM Stage 1 Specification
- TS 02.63 Packet Data on Signalling Channels Service
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 02.53?
3GPP TS 02.53 is the 3GPP Technical Specification for Tandem Free Operation (TFO) Stage 1 Description. Specifies TFO feature to avoid dual GSM speech codecs in mobile-to-mobile calls, improving speech quality and reducing bandwidth requirements.
Which 3GPP releases include TS 02.53?
TS 02.53 is published in 2 releases, from R96 to R98. The latest version on 3GPP Explorer is 7.0.1 (R98).
What category does TS 02.53 belong to?
TS 02.53 belongs to the Services (Speech Services) category of 3GPP specifications. It applies to 2G networks.
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