1. W3C, Web Services Description Language (WSDL) Specification, v 1.1, at http://www.w3.org/TR/wsdl
2. AePONA Causeway, at www.aepona.com
3. Alcatel 8601 Parlay/OSA Gateway, at: www.alcatel.com
4. JAIN protocol APIs
5. Carvalho, R. P., & Alberti, A. M. (2007). Java technologies for NGN service creation: Discussion and architecture to improve SIP addresses discovery. Internet and Multimedia Systems and Applications Conference, (pp. 56 – 62).