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Title: Online Detection of Feature Interactions of CPL Services
Authors: Wang, Lixiang
Xu, Jiuyun
Reiff-Marganiec, Stephan
First Published: May-2009
Publisher: IOS Press, Amsterdam
Citation: Feature Interactions in Software and Communication Systems X / edited by M. Nakamura and Stephan Reiff-Marganiec.
Abstract: The Call Processing Language (CPL) is one of the best known approaches developed for creating telephony services in Internet telephony. Its XML-based structure makes it a flexible approach to create services not only by service providers, but also by end-users, which increases the possibility of feature interactions. In this paper we present an online approach for detecting feature interactions of CPL. A feature interaction manager is introduced to handle the problem. The manager detects feature interaction through comparing actions indicated by real-time SIP messages and actions indicated by CPL scripts which we call intentions. We evaluated the proposed approach using the VOCAL (Vovida Open Communication Application Library) VoIP system. Among the ready-made features, a feature interaction has been detected between Call Screening and Call Forward All Calls.
Series/Report no.: The International Conference on Feature Interactions in Software and Communication Systems (ICFI), Proceedings of
ISBN: 9781607500148
Type: Conference paper
Description: This is the author's final draft of the paper published in Feature Interactions in Software and Communications Systems X / edited by M. Nakamura and Stephan Reiff-Marganiec, published by IOS Press, 2009. The final version is available from
Appears in Collections:Conference Papers & Presentations, Dept. of Computer Science

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