On securing real-time speech transmission over the internet: an experimental study
EURASIP Journal on Applied Signal Processing
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Voice conferencing has attracted interest as a useful and viable first real-time application on the Internet. This report describes NEVOT, a network voice terminal meant to support multiple concurrent both two-party and multi-party conferences on top of a variety of transport protocols and using audio encodings offering from vocoder to multi-channel CD quality. As it is to be used as an experimental tool, it offers extensive configuration, trace and statistics options. The design is kept modular so that additional audio encodings, transport and real-time protocols as well as user interfaces can be added readily. In the first part, the report describes the X-based graphical user interface, the configuration and operation. The second part describes the individual components of NEVOT and compares alternate implementations. An appendix covers the installation of NEVOT.