No there are still some airlines that prohibited BT onboard. Such as Air Euroa.
I was replying to the post saying that Bluetooth is banned in Europe.
It's not banned in Europe - the European Aviation Safety Agency (EASA) has ratified the regulations permitting Bluetooth as well as other aspects of personal electronic devices (PEDs), confirming the low risk of interference to the aircraft navigation and communications systems.
However, airlines remain free to apply more restrictive policies.
The vast majority of airlines that operate in Europe have adopted the EASA regulations in full.
Some have adopted modified rules, depending on the type model of aircraft. Some have adopted some restrictions relating to aircraft altitude.
So Bluetooth is not banned.
A few small airlines have some restrictions, but all the big names are fine.