Hi! I wonder how to select "on-the-fly" the audio input source for HFP calls. My system is: Raspian Jessie Lite, BlueZ 5.40, pulseaudio 8.0, ofono 1.18 with an USB/BT dongle. When I make or receive a call, I would like to select whether to use the local USB microphone or the smartphone one. Please, would you help me to understand how to achieve these settings? Thanks Marco