Not just Qlink...
DESCENT FROM CONTROLLED AIRSPACE
ENR1.1.46.1 Before descending from controlled into Class G airspace and be- fore separation with any aircraft operating near the base of con- trolled airspace can be compromised, the pilot in command of an IFR flight must report position, level, intentions and estimate for next position/destination to the ATS unit providing services in Class G airspace. If the report is made using HF radio, a broadcast must be made on the appropriate area VHF frequency.