Empathy should hide notification (and sound?) preferences when run under gnome-shell
Submitted by Jonathan Strander
Gnome Shell intercepts messages from Telepathy in order to display notifications. This can conflict with settings from the client the user is currently using to chat. For example clients such as Empathy have settings which allow the user to suppress notifications for messages such as a user signing on/offline, but Shell ignores any client settings and displays them regardless.