According to XEP-176, <transport/> element in session-initiate may be empty of <candidates/>. It fixes call establishment with Psi+ client.
Enable desktop streaming/sharing for SIP and XMPP protocol. Note that desktop sharing with remote control works only between two SIP Communicator clients for the moment.
Remove debug output.
When creating account check and disabled accounts(all loaded accounts in AccountManager) for duplicates. Don't block UI when disabling account which is currently registering or asking for authentication.
Add some logging to media service: rtp statistics and media streams info.