bluetooth headsets poor quality when using build in microphone

there is an issue with stereo bluetooth headset with build-in microphone that is occurring only on windows. To make it short the drivers available for windows does not allow to use a builtin microphone with 2 channel sound quality. The only available drivers prepared by a broadcom company are prepared for hands-free telephony that is forcing 1 channel (mono) sound while using the microphone. I have tried to reach a broadcom with this question but so far did not receive any reply. So I'm asking here now. Is there any plan on updating drivers for stereophonic bluetooth headsets with built in microphone to work in 2 channel quality sound while using microphone? I'm asking this because on android, iOS and linux my current bluetooth headset is working without any issues in 2 channel sound quality with mic but under windows it is always forced to 1 channel sound quality option. It is not a big issue but because of it I have to use a seperate microphone when working on windows machine. Thanks for reply :)