A. Mustonen, D. Draus, O. Saarinen, J.-M. Manninen (Finland), J. O'Connell, O. Audo, A. Guigui, and
Intelligent Network, network convergence, PINT, SPIRITS, VPN, Parlay/OSA.
Telecommunication networks and the Internet are converging, both at the network layer and at the service layer. One major open question is the architecture for the value added services layer of next generation networks. Today, the main technology used for offering value added services for telephone users, whether fixed or mobile, is Intelligent Network (IN) technology. IN technology has been widely deployed, and this technology is expected to remain in networks for a long time. The IETF has defined two protocols, PINT and SPIRITS as a basis for interworking between Internet and Intelligent Networks. This paper describes a proof-of concept, which was defined to study the use of these protocols in the design and deployment of converged services. The application that was chosen is an enhanced version of the well-understood IN service VPN (Virtual Private Network The proof-of-concept shows that the SPIRITS architecture can be used to open up the IN networks, and hence, to facilitate the migration of IN application logic and data into an IP environment, using standard interfaces. Parlay/OSA, and JAIN are alternative industry initiatives also focusing on defining open service convergence architectures. In the proof-of-concept activity, a Parlay/OSA version of the VPN service was also designed. At the end of this study a comparison between these two approaches SPIRITS and Parlay/OSA is presented.
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