The FRMCS knowledge platform
Standards, migration and operations of the Future Railway Mobile Communication System — clearly explained and linked to original sources.
Railway radio corridorPublications
The European Commission placed FRMCS on the InnoTrans 2026 agenda. Its programme identifies September 2027 as the target for completing the specifications and their testing.
Fundamentals
FRMCS explained clearly: why railways are replacing GSM-R, what FRMCS enables, and how architecture, services and migration fit together.
Read →02Standards
Which bodies produce which documents, and how to read status.
Read →03Migration
Coexistence, fleet retrofit, trackside and operational change.
Read →04Operations
Interfaces, responsibilities and operational readiness.
Read →Briefing · waitlist
A planned email briefing on FRMCS standards, migration milestones and practical findings. It is not being sent yet: you can register your interest now and will be contacted when it starts.