Murena one headset not working in calls


I have murena one phone. I would like to use headset (plugged via USB-C) during phone calls (via standard phone apps).
The headset works for listening the music, but doesn’t work during phone calls.
I do not hear anything, calling on other side doesn’t hear myself.
I tried two different headsets which works perfectly during phone calls on other android devices.
Is there some option I have to turn on to be able use headset for calling ?

Thank you in advance