I've got my note III and bose bluetooth headset. I'm in outside sales and take multiple calls a day while in the car. The change seems to have happened after 4.4 update. I leave my headset off in the car to save battery. When I get a call I turn it on, it answers, and I can speak to the person. NOW, it does this maybe 30% of the time. It still answers when I turn the headset on but I usually have to hit bluetooth off and then back on to be able to hear the person. This is driving me crazy and I see nobody else having this issue..