For ENDC mode, what parameters need to be enabled on 4G side and 5G side?

Hello Expert,
Does anyone know for ENDC mode, what parameter need to be enabled on 4G side and 5G side?
Vendor Ericsson.

You can set endcprofile=1.
Need to check endcprofileref.
endcallowed plmnlist need to be defined.
upperlayerIndR15Usage need to set.
Neighbour for 4g-5g & 5g-4g need to set.
Check 5g cabinet other settings.

Are you asking this question from planning point of view?
If yes, than I share some insight from planning tool point of view.