Compressed Voice Data over Variable Bit Rate ATM Adaptation Layer

Recently, there has been a trend in the military to utilize ATM as a backbone for the delivery of multimedia digital services. Concurrently, there has also been an active effort by the military to develop new voice algorithms that provide high quality over low data rate links. An opportunity exists to merge these two technologies to create a product which simultaneously solves the problem of voice delivery over low data rate links while maintaining compatibility with ATM networks. SRC proposes to thoroughly investigate all issues surrounding the delivery of efficient compressed digital voice over a variable bit rate (VBR) ATM Adaptation layer (AAL). Based on this investigation, SRC will propose a detailed architecture for the delivery of digital voice over a VBR AAL which conforms to industry standards and which allows connection and interoperability with a variety of existing and legacy voice communications systems. This product could potentially provide interoperability between networks such as telephone and military radio that traditionally are not interoperable. Such a product would find widespread use in both the military and commercial sectors. BENEFITS: The proposed Voice-Over-ATM capability will provide efficient delivery of high quality voice over ATM networks. The proposed voice and ATM algorithms are based on commercial and military standards, facilitating interoperability across platforms. The result will be a commercial-off-the-shelf product providing a significant improvement in efficiency and interoperability over current products.