Abstract:

The VoiceXML technology can effectively combine telephones and the Internet, and provide rich voice services for users. A design scheme and implementation framework for the VoiceXML interpreter is proposed. Shielding the heterogeneity of networks with OSA/Parlay API, the design scheme can be used in all kinds of communication networks. In view of the stability and scalability for the interpreter, the state pattern is used to optimize the design scheme. Moreover, the implementation of a prototype is introduced. Finally, an example which includes the  VoiceXML documents and the Message sequence chart between components, is given to illustrate the working mechanism of the interpreter.

Key words: VoiceXML;open service architecture;next generation network;