Release ledger
Canonical Atlas record
TR 22.989
Study on Future Railway Mobile Communication System
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-18 snapshot
Work affecting this release
24 indexed Change Requests · 2 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0015 rev.1 — Call restriction based on subparts of functional identities
CR 0012 rev.1 — Adding MCX Service Ad hoc Group Communication as alternative capability to support Railway Emergency Communication
CR 0010 rev.2 — Alignment between Changing conditions of Railway Emergency Alert and Merging Railway Emergency Alert
CR 0008 rev.2 — Triggering a change of communication privileges for a particular FRMCS User based on identities and/or talker status
CR 0011 — Service interworking between FRMCS and GSM-R of presence is no more required
CR 0009 — Arbitration: automatic answer
CR 0006 rev.1 — Changes to Critical Support Applications Multiuser talker control use case to support configurable initial talker permission
CR 0004 rev.1 — Changes to Critical Support Applications Inviting-a-FRMCS User to a voice communication use case to support Interworking with GSM-R
CR 0003 rev.1 — Merging of Railway Emergency Communications
CR 0002 rev.1 — Changes to Critical Support Applications “Inviting-a-FRMCS User to a voice communication” use case
CR 0001 rev.1 — Align TR with SA1 drafting rules on Inclusive Language
CR 0004 — Changes to Critical Support Applications Inviting-a-FRMCS User to a voice communication use case to support Interworking with GSM-R
Version history
Indexed versions
Showing 17 of 17 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TR 22.989
Study on Future Railway Mobile Communication System
Study on FRMCS Phase 4
(Small) Technical Enhancements and Improvements for Rel-18
Study on FRMCS Phase 5
Study on FRMCS Phase 6
Knowledge graph
Related standards
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