I share your pain, the state of actual implementations is sad. I don't know any (combination) of clients that do it all. Jitsi is pretty good but ugly and desktop only. Gajim is really good. Conversations is great for text on Android 4+.

It is no surprise that Whatsapp and the like are so successful. Textsecure/Signal is being too slow, I am afraid they missed their window of opportunity for fast widespread adoption.