I'm using the Jabra Pro 9450.
Yes I've opened that demo project but found it overwhealming since I haven't used VS in a long time (I most dabble in Auto-Hot-Key, and Home Assistant / YAML, but just using Visual Studio Code).
I found this which seems promising and possibly easier, but I'm still trying to do a proof of concept.
In both the Windows Demo App, and in the Chrome Integration, I can't find a command that changes this light from white to green ("pick up").
Really all I need is an EXE compiled which sends that one command, and another/separate EXE that sends the "hang up" command to go back to PC audio.