I have a Nexus 5, connected in media mode only to the Sena 20S. The Sena is also connected to the BMW Navigator 5. And this one is connected to my phone.
Calling works, but in some cases 1/4 of the phone calls, I suddenly hear myself. So I say HELLO and I hear back HELLO (a bit later). The funny thing is that the person that I'm calling experiences the exact same thing. It's possible that this stops after a couple of seconds, but mostly I need to disconnect and call them back.
I've had this with multiple people.
Anybody else experiencing this?