I'm experiencing a stupid problem with the plugin. In my computer at home it works correctly but in my car it doesn't.
The only issue is that on my car the person I call on phone (or the person who call me) only hear my fm radio (silabs usb) instead of my voice from the mic even if I correctly hear the other's person voice...
So I hear the voice but the other hear the fm radio.
Maybe there's some way to specify which audio card input use for the phone?