Unable to hear caller or speak after answering a call

[kqlnut]

This is probably because of an upgrade of pipewire which breaks automatic audio profile switching in recent versions. You can try switching profiles manually in the audio settings while on a call to see if this is the problem. Manjaro reverted to using pulseaudio instead of pipewire, but you have to revert the package changes manually if you installed an image which used pipewire (Beta 10–13 or dev images until recently). Here you can see the package changes when they replaced pulseaudio with pipewire in Beta 10. You have to revert the pipewire-* and pulseaudio* changes (install pulseaudio, pulseaudio-alsa and pulseaudio-bluetooth, remove pipewire-alsa and pipewire-pulse).