Just a quick note if you’re finding yourself stumped when installing murmur (the server component of Mumble) via yum on Fedora 13.
The version currently in the yum repositories has a broken init script, so if you try to sudo service murmur start you’ll get all sorts of nasty errors. The version currently in updates-testing works great, though. Install it from there like so:
sudo yum --enablerepo=updates-testing install murmur
That should do it. If you still have problems, try installing the redhat-lsb and qt-sqlite packages and see if that helps.