Secure Voice over IP with Variable Data Rate vocoder (SVoIP-VDR)

This Phase II program consists of advanced research and engineering development that leads to the delivery of a software package enabling the potential deployment in tactical networks of a Secure Voice over IP (SVoIP) application. This software package referred to as the Secure Voice Core Technology (SVCT) incorporates the Variable Data Rate (VDR) voice encoder developed by the Naval Research Laboratory (NRL). In addition to the NRL VDR, SVCT package incorporates all the key enabling technologies required for the efficient implementation of the SVoIP-VDR application. These include in addition to the required IP-based call signaling protocols and voice frame processing two essential components, namely: (1) an adaptive VDR rate control scheme and (2) a protocol header compression scheme. In the Phase II we will develop the SVCT package software to run on an advanced handheld radio platform being developed at Mayflower Communications under an Army sponsored SBIR Phase II program known as “MIMO for Energy-Aware Distributed Mobile Wireless Systems (MEADoWS)”. We have also included a Phase II plus field demonstration effort to demonstrate the SVoIP-VDR software package on a selected handheld radio platform suitable for soldier/marine field exercise.