Phone Calling - Extremely Bad Quality

[mischmerz]

Hello - I just got my PinePhone today. I didn't expect it to compete with my Samsung S10 and I am understanding it as a Linux box that can be used to make phone calls, but .. well .. I can't. Calls can be placed and the other side can hear me well, but all I am getting is some modulated static. It's very quiet but the real problem is that the sound itself is garbage. I can't understand a single word. Can't even say if its a male or female on the other side.

I am running the pre-installed PostMarketOS.

Any ideas?

Michaela