Be aware that I believe CASA is going to make use of such devices either totally illegal or restricted use in flight.
Where is the evidence for this?
The more I read the more it looks like the exact opposite is on the cards, including systems allowing passengers to use their mobiles in airliners.
To the original poster, there is a number of units on the market that allow you to do this. For example
Flightcell 2Go and others.