If you will do the installation, Tox, Ring and maybe Linphone are now very good choices.
If you need to let your parents to do the initial work, forget the above programs and try WebRTC, like, https://meet.jit.si/ or even Firefox Hello.
If you will do the installation, Tox, Ring and maybe Linphone are now very good choices.
If you need to let your parents to do the initial work, forget the above programs and try WebRTC, like, https://meet.jit.si/ or even Firefox Hello.