Work-around to get USB-C headset to work for calls (in Android smartphones)?

It is an interesting, albeit frustrating, phenomenon of late that manufacturers of soft- and hardware these days (including Huawei, Samsung and apparently also Google) release new products which do not function as advertized:

I use my usb-c setup for mostly listening to hi-res music, it’s annoying when I get a phone call and I have to disconnect my USB-c headphones to answer the call. Seriously Samsung needs to get there head out of the ass and fix this problem. How can every other flagship phone handle this including the OnePlus 6.

and

bump. So I did some bumming around. I don’t think it’s the equalizer that’s the problem. I think the phone app is incapable of routing calls through USB-C.

and

Google acknowledges Pixel 2 USB-C headphone adapter issue, says fix coming

and

It’s 2018 and USB Type-C is still a mess

and

How USB Type-C Has Failed Android Smartphone Users

Here’s what I’m confronted with: Huawei P10 with up-to-date software as of 3 Sep 2018, build nr. VTR-L09 8.0.0.375(C432) and “Dialer” app/process (?) version nr. 8.1.0.301 and Huawei Active Noise Cancel(l)ing Earphones 3 (cm-Q3) where sound works and calls through other apps like WhatsApp works but not through the standard telephone app. Any ideas on how to route standard phone calls through another (trustworthy…) app?

Other than finding a viable work-around all I can do is to hope that a fix will percolate through eventually through an update…