Specification
3GPP TS 22.091: Explicit Call Transfer (ECT) supplementary service; Stage 1
At a glance
- Title
- Explicit Call Transfer (ECT) supplementary service; Stage 1
- Newest version
- V19.0.0 (Rel-19)
- Versions indexed
- 5
- Newest per release
- Rel-15: V15.0.0 (2018-07-04); Rel-16: V16.0.0 (2020-07-16); Rel-17: V17.0.0 (2022-04-01); Rel-18: V18.0.1 (2024-04-05); Rel-19: V19.0.0 (2025-10-15)
In plain words
For Explicit Call Transfer (ECT), TS 22.091 sets charging principles using "the charging information required to be collected". It applies only to telephony (TS:11), excludes Man-Machine Interface (MMI) requirements, and leaves subsequent charging implications outside its scope.
Source: 3GPP TS 22.091 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/22_series/22.091/22091-j00.zip
Newest version in each release
| Release | Newest version | In the archive | TSG meeting |
|---|---|---|---|
| Rel-19 | V19.0.0 | 2025-10-15 | TSG SA #109 |
| Rel-18 | V18.0.1 | 2024-04-05 | TSG SA #103 |
| Rel-17 | V17.0.0 | 2022-04-01 | not recorded |
| Rel-16 | V16.0.0 | 2020-07-16 | not recorded |
| Rel-15 | V15.0.0 | 2018-07-04 | not recorded |
Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.
Meetings behind the latest versions
Plenary meetings:
- TSG SA #109 is recorded for V19.0.0 (Rel-19)
- TSG SA #103 is recorded for V18.0.1 (Rel-18)
Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.
Sources
- 3GPP TS 22.091 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/22_series/22.091/22091-j00.zip
- 3GPP TS 22.091 V19.0.0, clause 4.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/22_series/22.091/22091-j00.zip
How this page was made
The facts box and the tables come straight from the 3GPP specification archive and CR database as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.