To improve its military readiness in today's budget environment, the Department of Defense needs advanced techniques that provide effective command, control, and communication (C3) training of its personnel with fewer resources. Government, industry, and academia are working to specify the distributed interactive simulation (DIS) environment, which consists of protocol data units (PDUs) that contain information about the simulated entities, a communication architecture that provides the necessary services for networked simulation, image generation databases to represent the physical environment, and performance measures for evaluation of both the simulation and training processes. This paper discusses an innovative method of integrating voice for command, control, and communication into the DIS environment. The radio communication and digitized voice characteristics that affect the C3 training architecture will be discussed. A packetized voice architecture will be proposed that provides functional radio capabilities such as (1) selecting channels of a radio communication device, (2) receiving and listening to multiple voices on one radio channel, (3) selecting filters to emulate the radio communication signatures, and (4) providing environmental effects on voice communications. The performance issues of prototyping the packetized voice architecture and a proposed DIS PDU for packetized voice will be presented.