No phone call audio, logs posted, modem can't init audio?

[biketool]

firstly the earpiece hardware works fine, I can play audio through it.

I replaced the mainboard on my PPpro and at some point early on I lost the ability to hear or send audio on a telephone call.

There are 2 "speakers" there is the headset speaker and the big speaker the music apps use.

When I replaced my screen, i did not move over the headset speaker. see this video where I pointed it out. It took me a week to realize my mistake.

https://youtu.be/kLOHfYhM7XQ?si=cRf9V8CYXPAjn07F&t=1273

both the external and earpiece speakers test good for playing mp3 when selected in settings, I am wondering if some virtual audio line or virtual USB device from the modem is not attaching?
I just dont know what to look for in the log dump from the modem's OS.