The guidelines for Medicare and for Medicaid in many states require that devices purchased with funds from these organizations are "dedicated" devices. Dedicated devices are devices that can only be used as communication devices, i.e. no other applications can be run on the devices. The Dedicated Plus Chat Models meet the funding requirements of these organizations.
Dedicated Plus models include all of the features of the Plus models and come with a three year warranty. Dedicated Plus model for NOVA chat 7 also includes a carrying case.