Feature Description
When the 5GC supports the emergency services, the UE is enabled to handle the emergency through the Registration Accept message on per-TA and per-RAT basis.
This feature allows the UE to fall back to EUTRAN connected to 5GC (4G radio, 5G core) or EUTRAN connected to EPC (4G radio, 4G core). UE switches to the EUTRAN type based on the network capabilities and if the 5G Radio is not NR capable.