Using Bluetooth device with softphone

I have a laptop with the Zoiper softphone.
It uses IAX2 to connect to the PBX.

This comes in very handy when I am on the road.
I would like to replace the old headset which is worn out.

I have a new spare Bluetooth headset.
I would like to use this Bluetooth headset with the Zoiper softphone.

As I understand it…
I could buy a USB Bluetooth Adapter.
Connect this Adapter to a USB port on the laptop.
Configure the Adapter to pair it with the Bluetooth headset.
Start Zoiper and make it use the USB (or Bluetooth) device as the audio input/output.

Is this how it should be?
Am I missing anything?

Any other advice/tips?