Honker.
You show your ignorance here me old son.
A339 (MJE-CIN) which is the only route that QF79/70 ever flys (unless not ETOPS) has the following comms sequence.
Tyo Ctl (VHF) - Tyo Ctl (HF) - Naha (HF) - SFO (HF) - Ujung (128.1) - Bne...
Check your jepp chart and have a look at the FIR's
two hours out they would have been on HF, tends to relatively realatively quickly on this route.
Be VERY careful pal, the crew are well known to most in QF and are though very highly of...