TS 22.279 – CS and IMS Combinational Services Requirements
3GPP TS 22.279 is the 3GPP Technical Specification for CS and IMS Combinational Services Requirements. Its official 3GPP title is “Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions”. It is published in 13 releases (Rel-7 to Rel-19); the latest version is 19.0.0 in Rel-19.
Specifies service requirements for combining CS calls with IMS sessions, including capability exchange, adding sessions, and supplementary services.
Releases and versions of TS 22.279
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.1 | 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 | 7.1.0 | Read · Download (3GPP) |
Scope of TS 22.279
Category: Services (IMS). Technology generation: 3G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 22.279
Specifications that reference TS 22.279
Other specifications in the 22 series
- TS 22.263 5G Professional Video/Audio/Imaging Requirements
- TS 22.268 Public Warning System (PWS) Requirements
- TS 22.273 IMS Multimedia Telephony with PSTN/ISDN Simulation
- TS 22.278 Evolved Packet System Service Requirements
- TS 22.280 Mission Critical Services Common Requirements (MCCoRe)
- TS 22.281 Mission Critical Video (MCVideo) Service Requirements
- TS 22.282 Mission Critical Data Service Requirements
- TS 22.289 Railway Communication for 5G Systems
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 22.279?
3GPP TS 22.279 is the 3GPP Technical Specification for CS and IMS Combinational Services Requirements. Specifies service requirements for combining CS calls with IMS sessions, including capability exchange, adding sessions, and supplementary services.
Which 3GPP releases include TS 22.279?
TS 22.279 is published in 13 releases, from Rel-7 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 22.279 belong to?
TS 22.279 belongs to the Services (IMS) category of 3GPP specifications. It applies to 3G networks.
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