>But I don't feel comfortable (physically) holding the phone (so that the microphone is closer to me). I have a nice mic on my PC which has good quality. I think the phone is for making telephone calls. I have another option though, to use it on the iPad. But I still hope that I can resolve the PC issue.

I was a skype user before MS bought it up - happy to save when (phone) calling to other continents. Back then I had it on my Nokia E51, which some time after buy did not work any more. Nowadays I use the calling option of Telegram and WhatsApp (Signal from Snowden hints just does not have the customers), but I am quite happy to JUST phone instead of video + sound...