i am already using kde neon 5.20.4
i hava a bluetooth headset
i can easily connect it and use a2dp mode.
but i can not switch hsp/hfp mode to use it as microphone .
tech details :
- hardware is : qualcom atheros QCA9377 802.11ac
- ofono is installed
- pulse audio version : 13.99.1
- my sistem is up to date.

i need a solution. thanks advance