We tried it with my team, the interface is incredibly slow, but it works without problems. I just can't understand how an IM application released in 2013 manages to be so slow on a pretty modern computer....
Oh, yeah, Java. /usr/bin/java -classpath /usr/share/jitsi/lib/jdic_stub.jar:/usr/share/jitsi/lib/jdic-all.jar:/usr/share/jitsi/lib/felix.jar:/usr/share/jitsi/lib/bcprovider.jar:/usr/share/jitsi/sc-bundles/sc-launcher.jar:/usr/share/jitsi/sc-bundles/util.jar -Djna.library.path=/usr/share/jitsi/lib/native -Dfelix.config.properties=file:/usr/share/jitsi/lib/felix.client.run.properties -Djava.util.logging.config.file=/usr/share/jitsi/lib/logging.properties -Dnet.java.sip.communicator.SC_HOME_DIR_NAME=.jitsi net.java.sip.communicator.launcher.SIPCommunicator