| Abstract
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VoiceXML is an XML based scripting language for describing voice
dialogs. VoiceXML interpreters run within an interpreter context
that, among other tasks, provides a call control interface for
accessing the interpreter. It is very natural to provide a VoIP-based
interpreter context that uses SIP and RTP to communicate with the
outside world. In this document, we provide detailed specifications
for a SIP/RTP based interpreter context.
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