Concepts and technologies are disclosed herein for setting voice and data priority using a registration message. According to some embodiments, a processor that executes a voice and data priority application can determine a class of device associated with a communication device, a capability indicator that indicates if the communication device is capable of transmitting data communications and if the communication device is capable of transmitting voice communications, and a priority indicator that indicates if data communications are to be prioritized over voice communications for the communication device. The processor also can generate a voice and data priority indicator that indicates the class of device, the capability indicator, and the priority indicator, and save the voice and data priority indicator at a memory associated with the communication device. The communication device can be configured to generate a registration message that includes the voice and data indicator when registering with a network.