A service framework for carrier grade multimedia services using PARPLAY APIs over a SIP system

The implementation of new mobile communication technologiesdeveloped in the third generation partnership project (3GPP) willallow to access the Internet not only from a PC but also via mobilephones, palmtops and other devices. New applications will emerge,combining several basic services like voice telephony, e-mail,voice over IP, mobility or web-browsing, and thus wiping out theborders between the fixed telephone network, mobile radio and theInternet. Offering those value-added services will be the keyfactor for success of network and service providers in anincreasingly competitive market. In 3GPP's service framework theuse of the PARLAY APIs is proposed that allow applicationdevelopment by third parties in order to speed up service creationand deployment. 3GPP has also adopted SIP for session control ofmultimedia communications in an IP network. This paper proposes amapping of SIP functionality to PARLAY services and describes aprototype implementation using the SIP Servlet API. Furthermore anarchitecture of a Service Platform is presented that offers aframework for the creation, execution and management of carriergrade multimedia services in heterogeneous networks.