I agree that if this was a pair of headphones I would sometimes want it to route audio and other times not. However, this is a single ear headset/microphone that is specifically meant for phone calls and should do nothing but phone calls. I was under the impression that bluetooth had different protocols for headsets and A2DP was always used for headphones (I'm not trying to be a professional about bluetooth I just thought that's how it is). So if it is that way, shouldn't audio only go over A2DP and phone calls to the headset/microphone?