Part III: Add-on Modules

All add-on modules can be operated on the same system - none are mutually exclusive and most of them can be added on after your purchase. Some add-on modules, however require special hardware. The Fonebar option, for example, requires a special voice board, and unless you purchased that option at the time of your initial purchase, you would not have the correct hardware to allow the module to operate. You would have to get another voice board. That does not mean you have no way to get the Fonebar module if you did not purchase it initially. Contact Sales for more information. Module explanations below detail which have special requirements.