Unified Comms

Performance Study on Audio Codec and Session Transfer of Open Source VoIP Applications

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Executive Summary

Voice over Internet Protocol (VoIP) application or commonly known as softphone has been developing an increasingly large market in today's telecommunication world and the trend is expected to continue with the enhancement of additional features. This includes leveraging on the existing presence services, location and contextual information to enable more ubiquitous and seamless communications. In this paper, the authors discuss the concept of seamless session transfer for real-time application such as VoIP and IPTV, and the prototype implementation of such concept on a selected open source VoIP application.

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