It is possible to record calls through the microphone with an app like gnome-sound-recorder on the PinePhone (so maybe it works for the PinePhone Pro too) but there is a large volume difference between the caller and callee and I did not find a way to record calls when using headphones. I also mentioned "AT+QAUDRD Record Media File" modem commands that did not work for me:
https://github.com/Peetz0r/call-recorder/issues/2
I am still using the Jolla smartphone from 2013 as my primary smartphone because of this issue and other ones.
https://github.com/Peetz0r/call-recorder/issues/2
I am still using the Jolla smartphone from 2013 as my primary smartphone because of this issue and other ones.