I used CallRec. It wasn't easy to get it working. After rooting my phone, I had to spend hours making other tweaks. And of course the software ecosystem is so

I used CallRec. It wasn't easy to get it working. After rooting my phone, I had to spend hours making other tweaks. And of course the software ecosystem is so fragmented, and if you do want to find anything out, you have to sift through mountains of misinformation.