In Oz, we generally have class G up to A085 or F125 in the more remote areas.
if IFR in that airspace the ANSP provides DTI (but not seperarion) with other IFR. It is mandated this be provided, it is not on a workload permitting basis.
Sometimes with the aid of surveillance coverage and sometimes without.
Is this DTI service to IFR in G provided in most countries ?