Is there a way to tell the SIP Plugin included with Spark to use the audio and microphone from a USB Headset on Windows? I’ve tried changing the “Default Device” in the “Sounds and Audio Devices” control panel in Windows but that makes it so you can’t use speakers for other sounds. Other SIP clients like X-Lite have a configuration dialog that allows you to select audio sources. I could not find any such dialog for Spark. Any help is greatly appreciated.