Jivesoftware just announced the Asterisk-IM project which integrates the opensource Asterisk PBX with their Jive XMPP/Jabber server. This unification is already supported by their own jabber client Spark, but others may work fine. They’ve also released a proto-JEP for developers wiling to follow their way. Meanwhile Jingle is moving along fast and steady, and support from the main XMPP providers and server implementations is expected . Interesting times ahead.