Video calls for Signal now in public beta

Video calling with Signal is pretty slick, having used the beta for a few days. Just make sure to shut off video if you get into a low bandwidth situation, as opus can only cover up up to 30% packet loss, and video shoved down too small a pipe can induce much more packetloss.

I will miss the ZRTP codewords though, something about those going away makes me feel less secure since I can't easily do a voice verification during a call.