This paper deals with the design of telecommunications services using the SIP protocol. We give an overview of SIP and an overview of the programming models CGI and Servlets together with their SIP-based extensions SIP-CGI and SIP-Servlets. Then, we show how we have created several SIP-based services using SIP-Servlets.
Qiang Fan, Roch H. Glitho, Ahmed Khoumsi