I am running Ubuntu 21.10 on a Thinkpad X1 Tablet. I pay for a VoIP phone and usually use it via a Grandstream HT502 ATA. But sometimes I would like to use my computer to make the VoIP call. I installed Empathy but am having a lot of trouble using it. I am wondering what other open source VoIP software is available and what do people recommend? I hope to record phone interviews with family members about family history so I would like to be able to record.
The linphone project meets all these requirements. Unfortunately the linphone installed from the Ubuntu 21.10 repositories does not have record working, but linphone can be compiled from source. In addition to the instructions given in the linphone source repository, I had to run
sudo apt install libglew-dev libqt5webview5-dev '^qt.*5-dev$'