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2003
IEEE

Semantic Warnings and Feature Interaction in Call Processing Language on Internet Telephony

9 years 3 months ago
Semantic Warnings and Feature Interaction in Call Processing Language on Internet Telephony
The Call Processing Language (CPL in short, RFC2824) is an XML-based language, which provides a flexible mean to create end-user services in the Internet Telephony (VoIP). However, the service description by non-experts does not always guarantee reliable services, thus, could be a cause of system faults. This paper first proposes six classes of the semantic warnings within the CPL scripts. For a given CPL script, the semantic warnings identify the sources of ambiguities, redundancies and inconsistencies, even though the script is syntactically well-formed with respect to the Document Type Definition. Next, we address the problem of Feature Interaction (FI, in short) between multiple CPL scripts, which is a kind of inconsistent conflict between services. We characterize the FIs as the semantic warnings over the multiple CPL scripts. Then, we propose a new FI detection method to combine the multiple CPL scripts and to detect script-to-script interactions. We also discuss architectur...
Masahide Nakamura, Pattara Leelaprute, Ken-ichi Ma
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where SAINT
Authors Masahide Nakamura, Pattara Leelaprute, Ken-ichi Matsumoto, Tohru Kikuno
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