The call audio is too bad to understand. Broken mechanical static. It is bad
for both incoming and outgoing calls. I've tried the sound settings for the phone
but nothing makes a difference. Any clues?
Companies are starting to switch over to VoLTE.
With that, some time ago, I put in a SIM card in a phone from a different carrier (unlocked). This was about three years ago before to VoLTE. I could make calls, and send text messages, but no data at all.
After calling the carrier, it turns out I had to go into the phone's SIM settings and add a Internet APN. They gave me the info I need to connect. With the addition of VoLTE, it is likely, nothing will function now unless you have Internet APN info entered.
Just speculation on my part.
FreedomPop has always been VoLTE only. Well, for a while you could pay extra to use "normal" cellular calling, but I'm not sure if that's even an option anymore.
Bit retarded ;-) I found I could have tested that speaker audio in the settings. And the earpiece speaker works fine..
So this is PostmarketOS 3GB pinephone has no call audio...
If I route the call audio to the rear speaker its just as bad.