How do I manually turn on/off the busylight on my Jabra Evolve 65e?

To manually turn on/off the busylight LED on the Jabra Evolve 65e, simultaneously press the Volume up button and the Volume down button, located on the microphone box on the right cord.

To active/deactive the busylight function, simultaneously press and hold (3 seconds) the Volume up button and the Volume down button. Alternatively, use Jabra Direct.