Hangouts doesn't actually really totally use Jabber. It supports it if a Jabber client is involved, but between Hangouts sessions they use some proprietary bull

Hangouts doesn't actually really totally use Jabber. It supports it if a Jabber client is involved, but between Hangouts sessions they use some proprietary bullshit. That is why my chat history on, say, telepathy won't show up if I was using the Android hangouts app to message someone. Also, there is literally no good foss voip and conferencing options. Jitsi videobridge is the closest thing I've found, and that isn't an XMPP standard and isn't supported by my preferred IM tools. Also, Jitsi is an ugly as sin Java app.... I'm definitely going to try putting aside a week this summer to see how hard it would be to implement videobridge in telepathy. If we could get that and group OTR encryption in it, there would finally be a FOSS communication alternative...