The integration of voice and data presents an opportunity to use heretofore idle secure voice link capacity, and the challenge of implementing protocols supporting both voice and data. The new architecture demands a layered functional implementation similar to the international standards organization (ISO) open systems interconnect (OSI) model and the ability to globally address any message, data file or voice call. network management and protocol functions must be data transparent while providing the throughput, timeliness and responsiveness demanded by all user communities. These protocols must support computer to computer data exchange within a network and satisfy the rapid access demands of secure voice users who expect secure voice call placement within seconds. These challenges must be met in a communication environment having propagation times ranging from milliseconds in UHF loss to seconds for the highly interleaved milstar waveform. Phase I will have three technical objectives: l) fully characterize the secure voice addressing requirements and determine the CSS address mapping and/or conversion functions required; 2) define and develop the overall protocol requirements for SEVOX//data operation within the CSS multi-media environment; and 3) develop strawman prototcols for each CSS media based on the identified requirements.
