I've been looking at the concept for "directed traffic information", and correct me if I'm wrong, it's traffic information provided by the ATS unit handling the G airspace?
In that case, Greenland has class G below FL195, IFR is allowed but has to be on flightplan and in contact with the ATS unit, a Flight Information Centre, can be on VHF or HF outside VHF coverage. FIC will then provide traffic information between IFR flights according to set minima, less than 1000FT, 20 minutes crossing track, 20 minutes same track, 15 minutes opposite track etc.... it's a non surveillance airspace, though there is work on ADS-B satellite coverage. Pilots are ofcourse obligated to advise changes to flightpath, position reports etc. IFR flights are also required to file flight plans.
Only thing, there is no traffic information between IFR and VFR, simply because you can fly VFR without flightplan and radio contact with the unit. Though it will be given if known.