Release ledger
Canonical Atlas record
TS 22.179
Mission Critical Push to Talk (MCPTT); Stage 1
Responsible WGS1
StatusUnder change control
Initial releaseRel-13
Selected releaseRel-17
Latest indexed version21.0.0
Series22
TypeTS
Release evolution
Compare evidence between releases
Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.
Rel-17 snapshot
Work affecting this release
9 indexed Change Requests · 2 connected Work Items.
Showing 9 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0076 — Usage of multi-talker control for Ad hoc Group Emergency Voice Communications
CR 0075 rev.1 — Clarification on use of MCPTT Late call entry KPIs
CR 0075 — Clarification on use of MCPTT Late call entry KPIs
CR 0074 — Clarification on interworking between FRMCS System and Public Networks
CR 0073 rev.1 — Group and Private call setup KPIs
CR 0073 — [22.179] Individual call setup KPIs
CR 0072 — Correcting inconsistency of call termination condition for MCX Service types
CR 0076 rev.1 — Usage of multi-talker control for Ad hoc Group Emergency Voice Communications
CR 0071 — Enhance interworking between MCPTT Group Call and Advanced Speech Call Items used in GSM-R with identity of GSM-R initiator
Version history
Indexed versions
Showing 38 of 38 indexed versions.
21.0.0Rel-21SA#1132026-10-02
20.0.0Rel-20SA#1072025-03-28
19.3.0Rel-19SA#1052024-09-27
19.2.0Rel-19SA#1022023-12-22
19.1.0Rel-19SA#1012023-09-22
19.0.0Rel-19SA#1002023-06-23
18.0.0Rel-18SA#1002023-06-23
17.1.0Rel-17SA#95-e2022-04-01
17.0.0Rel-17SA#862019-12-20
16.5.0Rel-16SA#832019-03-29
16.4.0Rel-16SA#822018-12-21
16.3.0Rel-16SA#812018-09-21
16.2.0Rel-16SA#802018-06-23
16.1.0Rel-16SA#792018-04-06
16.0.0Rel-16SA#782018-01-05
15.2.0Rel-15SA#782018-01-05
15.1.0Rel-15SA#772017-09-22
15.0.0Rel-15SA#762017-06-16
14.3.0Rel-14SA#742016-12-16
14.2.0Rel-14SA#732016-09-30
14.1.0Rel-14SA#722016-06-24
14.0.0Rel-14SA#712016-03-18
13.3.0Rel-13SA#702015-12-19
13.2.0Rel-13SA#682015-06-30
13.1.0Rel-13SA#672015-03-21
13.0.1Rel-13SA#662015-01-05
13.0.0Rel-13SA#662014-12-19
2.1.0Rel-13 · pre-approvalSA#662014-12-17
2.0.0Rel-13 · pre-approvalSA#662014-12-17
1.0.0Rel-13 · pre-approvalSA#652014-09-22
0.7.0Rel-13 · pre-approval-2014-09-02
0.6.0Rel-13 · pre-approval-2014-07-22
0.4.0Rel-13 · pre-approval-2014-06-13
0.3.1Rel-13 · pre-approval-2014-02-27
0.3.0Rel-13 · pre-approval-—
0.2.0Rel-13 · pre-approval-—
0.1.0Rel-13 · pre-approval-—
0.0.1Rel-13 · pre-approval-—
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 22.179
DUMMY
Rel-13parsedAwaiting formal work item
MCPTT
Rel-13officialStage 1 for MCPTT
MCPTT
Rel-13officialMission Critical Push To Talk over LTE (MCPTT)
MCImp-MCPTTR
Rel-14parsedMission Critical Push to Talk over LTE Realignment
FS_FRMCS
Rel-15parsedStudy on Future Railway Mobile Communication System
MCOver
Rel-15parsedRemoval of 'over LTE' limitation from Mission Critical Specifications
MONASTERYEND
Rel-17parsedComplete Gap Analysis for Railways Mobile Communication System
TEI17
Rel-17parsed(Small) Technical Enhancements and Improvements for Rel-17
FRMCS_Ph5
Rel-19parsedStage 1 of Railways specific Enhancements to Mission Critical Services
FS_FRMCS_Ph5
Rel-19parsedStudy on FRMCS Phase 5
ALPR-REQ
Rel-20parsedStage 1 for Ambient listening enhancements including pause and resume in MCS
FRMCS_Ph6
Rel-20parsedFRMCS Phase 6
FS_FRMCS_Ph6
Rel-20parsedStudy on FRMCS Phase 6
FRMCS_Ph7-REQ
Rel-21parsedStage 1 for FRMCS Phase 7
Knowledge graph
Related standards
No graph edges indexed yet. The graph API is available at this JSON endpoint.