XML-Based Multimodal Interaction Framework for Contact Center Applications 
In this paper, we consider a way to represent contact center applications as a set of multiple XML documents written in different markups including VoiceXML and CCXML. Applications can comprise a dialog with IVR, call routing and agent scripting functionalities. We also consider ways how such applications can be executed in run-time contact center environment.
Anisimov, Nikolay, Brian Galvin and Herbert Ristock. WWW 2007 (2007). Articles>Business Communication>Information Design>XML