As Andre says, you can just use your own license file in replacement for the one you have now.
A couple of things in addition to what Andre mentions,
- make sure you download a fresh license file. They made some changes to the file after R2 was released back in November/December 2012. Just head over to VOICE and download a fresh file. Just in case you use an "old" file.
- Before reading in the file, have a look at the current set of license configuration. Pay attention to the ones being removed explicitly in order to disable verticals not wanted in your solution. You may read in a new license file, but you risk reapplying licenses previously being removed manually.
(Almost) needless to say, you want to avoid doing this in a live system while people are using it.