#Sip definition telecom Pc

In this article, we propose an architecture for hybrid services, i.e., services that span many network technologies, such as the Public Switched Telephone Network (PSTN), cellular networks and networks based on the Internet Protocol (IP). Furthermore, an architecture of a Service Platform is presented that offers a framework for the creation, execution and management of carrier grade multimedia services in heterogeneous networks. This article proposes a mapping of SIP functionality to Parlay services and describes a prototype implementation using the SIP Servlet API. 3GPP has also adopted SIP for session control of multimedia communications in an IP network. In 3GPP's service framework the use of the Parlay APIs is proposed that allow application development by third parties in order to speed up service creation and deployment. Offering those value-added services will be the key factor for success of network and service providers in an increasingly competitive market. New applications will emerge, combining several basic services like voice telephony, e-mail, voice over IP, mobility or web-browsing, and thus wiping out the borders between the fixed telephone network, mobile radio and the Internet.

#Sip definition telecom Pc

The implementation of new mobile communication technologies developed in the third generation partnership project (3GPP) will allow to access the Internet not only from a PC but also via mobile phones, palmtops and other devices. Furthermore anarchitecture of a Service Platform is presented that offers aframework for the creation, execution and management of carriergrade multimedia services in heterogeneous networks. This paper proposes amapping of SIP functionality to PARLAY services and describes aprototype implementation using the SIP Servlet API. 3GPP has also adopted SIP for session control ofmultimedia communications in an IP network.

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. Offering those value-added services will be the keyfactor for success of network and service providers in anincreasingly competitive market. 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. 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. In each case Parlay is used between the networks specific Call Control and the independent application. They differ in the placement of network specific components and in the way of gateway control. In this paper we propose three different softswitch architectures supporting connectivity to the PSTN as well as to the IP world. One possibility for such an interface could be the Parlay API.

Hybrid Components, called softswitches, could fulfil both, gateway functionality and access to centralized applications using standardized interfaces. If this is done over open interfaces, so called 3rd Party Service Providers could offer their services in a more flexible way. Another important issue is the centralization of service logic to make it usable from different types of networks. Currently, network providers from the classical circuit switched world have to think about enabling interconnection to the IP domain over appropriated gateways. In the last years the convergence between circuit switched and packet switched communication networks has become more and more important, not at least because of the growing Voice over IP or rather Multimedia over IP tendency.