Convivo Communicator:

an Interface Adaptive VoIP System for Poor Quality Networks

  Convivo is a VoIP system designed to provide reliable voice communication for poor quality networks, especially those found in rural areas of the developing world. Convivo introduces an original approach to maintain voice communication interaction in the presence of poor network performance: an Interface-Adaptation mechanism that adjusts the user interface in order to reduce the impact of high latency and low bandwidth networks. Interface modes facilitate turn taking for high latency connections, and help to sustain voice communication even with extremely low bandwidth or high error rates. An evaluation of the system, conducted in Bohechio, a rural community in the Dominican Republic, found that Interface-Adaptation helped users to maintain voice communication interaction as network performance degrades. Rural communities with access to the Internet can benefit from systems such as Convivo, which proposes the use VoIp as a low-cost alternative to the Public Switched Telephone Network (PSTN) voice service. Providing VoIP systems in rural communities may help people to attain their development goals. Convivo is a first step at developing an appropriate VoIP environment for the developing world.
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Convivo Communicator (pdf). Paper published on the Journal of Information, Communication & Ethics in Society (ICES) Jul. 2003.

Convivo research was conducted during 2001 and 2002 as my master thesis project. Thesis document is available upon request.