Oktopous is a CCXML Interpreter independent of telephony environment and VoiceXML gateways and provides a flexible high level API to integrate with any platform of choice.
As of 7th July 2013, the Project is temporarily suspended. Phonologies has discovered large scale violation of the Phonologies Public License under which open source Oktopous™ is distributed and is currently investigating the matter.
Phonologies' humbly appeals to the public at large to report by writing to firstname.lastname@example.org any such known violations. Such violations have caused loss to the open source community.
Outdated, incomplete and arcane. For example, Oktopous has its own C++ container library (similar to STL) with a classic C wrapper. Since C doesn't support inheritance, Oktopous requires as many as 3 pointer casts to retrieve a simple value. Or how about 4 string types which need constant conversion: VXIString, vxistring, VXIchar* and VXIValue. Writing your own CCXML library would be easier than using this mess.