The reason for the downgrade was due to a problem with Soft Console. The way in which Avaya have changed the assisted transfer makes if a little strange to say the least.
In older versions of SC, when you have an incoming call, and make an enquiry call to see if the internal extension will take the call, the incoming external call goes blue, and stays in the top right pane; however in later 3.1 SC's and 3.2 SC the incoming external call drops into the bottom left "on hold" box, and the enquiry call goes into the top left pane.
This causes our receptionist some problems recovering the call from the keyboard without using the mouse to get it back.