I recommend trying jitsi (meet.jit.si) for conferences with features. Ring is a new one, that looks very promising for secure multiplatform p2p one-on-one commu

I recommend trying jitsi (meet.jit.si) for conferences with features. Ring is a new one, that looks very promising for secure multiplatform p2p one-on-one communication. (ring.cx) On my phone, I use CsipSimple with my trusty VOIP provider Diamondcard.us.