Is there Telstra mobile reception at either EQ or Home Valley?
I believe if you stand at the top of the hill and the wind is blowing in the right direction you can fire off a few text messages.
You can purchase wifi at ELQ and I think for HV too.
There is a hill just outside of Home valley that you can drive to off the Gibb where you get 4g coverage.
please :}Edited: 24 June 2018, 00:18