We just rolled this out to our organization as well and the sound is so low it's actually not usable for notifications. Sadly this application has NO options to pick a different sound or adjust volume. Not at all happy and will suggest to IT that we...
Our organization just migrated to Jabber and I'm very disappointed in the lack of options regarding notifications. At this point I'm going to look for ANY alternative and suggest we go back to the previous IM client we used.