Bluetooth issue Mpow X3, no sound when making calls (phone, telegram) FP3

Summary

No sound when making calls (Telegram or normal phone)

The problem

No sound, mic does not work when calling or being called.

Make, get call No sound at all

What is the expected correct behavior? sound

Technical informations

Use Mpow X3 headset 0.11-p-2020083179821-stable-FP3

Relevant logs (adb logcat) log.txt