USB-C 3.5mm jack adapter call with Sony WH1000XM3

[Xyphoid]

My USB-C 3.5mm jack adapter that was included with my Razer Phone won't work with my Sony WH1000XM3 in a call.
All other sounds like ringtones, movies, music or Youtube work.

But whenever I call or get a call I get the following results:

The adapter works with a normal (in ear) headset on my Razer Phone.
The adapter works with the Sony WH1000XM3 on a Pixel 3A.
But it won't work with the Sony headset on my Razer Phone.

Anybody knows what could be the problem?

 

[Xyphoid]

I've tested some more.
If I start a phonecall with another headset plugged into the USB-C converter I have call audio.
If I switch the headset to my Sony WH1000XM3 during the call, than the call audio works.
But if I hang up and start a new call, the call audio will be gone again.

So it seems like the phone doesn't recognize the Sony headset and doesn't switch the call audio to it.
I'm gonna try to find a cable with three rings on it to use with the Sony. Maybe that'll work.

- Edit -
I've tested with some other headphones without a mic and they also don't have call audio. It seems that the phone doesn't recognize the headphones.
The Pixel 3A does recognize all headsets (with and without mic) when connected via the Razer dongle.

- Edit 2 -
I received my mic/headset cables.
I connected my Sony headset with that cable directly to the dongle.
Now the phone recognizes the headset and sends the call audio to the headset. But the mic is still deactivated.
On the Pixel 3A the mic of the phone keeps working, even though I have the dongle with the headset connected.

I haven't tried a full reset of the phone yet, because I don't want to spend another weekend reinstalling, setting up and restoring backups.
As a last resort, I will try that.
Sent a mail to Razer last week. No answer yet.