IMPORTANT NOTICE: This page contains information about a feature as it is specified in the relevant 3GPP/GSM/ITU/ETSI or other specifications. This does not mean that feature is already implemented in Osomocom, or that implementation is work in progress.

GSM-R¶

GSM-R is a railway adapted version of GSM. It is used not only by European railway operators, but has seen adoption in Asia and Australia, too.

See https://en.wikipedia.org/wiki/GSM-R for some general introduction

Technically, the main of GSM-R are:

• ASCI (Advanced Speech Call Items, i.e. Voice_Group_Call and Voice_Broadcast_Call
• CSD
• Functional Addressing
• eMLPP