I actually started down that path in Q1 of 2013 when we deployed Elastix at my main site but ran out of time. Back then the T32G was not part of the configurator, but I did find this gem, which may help you:
link text.
I got as far as adding the T32G to the phone database on the server so that it would show as an option when Elastix detects the phone. But that's as far as I made it.