New Generation Networks Architecture between H.323 and SIP Protocol

Abstract

Today in this new era everyone wants to achieve the goal or target in minimum time as per his schedule, for business purpose, corporate sector, or make a better relationship via meetings either in his personal life. It’s a major challenge for new generation is to provide multimedia teleconferencing services. For this challenge there are special standards have recently populated for signaling and control for Internet teleconferencing. Here discussed on two standards: One is ITU Recommendation H.323, and the other is the IETF Session Initiation Protocol (SIP). Both signaling protocols are responsible for call setup and call tear down. Several comparisons of these two protocols have been published already, but their service architectures have been rarely addressed. This paper provides a unique architecture based on mechanism, with comparison of H.323 and SIP both protocol, and focusing on their service architectures. While architecture of both standards are quite similar. Here in this paper focused on considerable differences regarding their transferable and supplementary service. H.323 is still the more standard, smooth interworking with the PSTN and interoperability between different implementations. It has specific advantages for IP telephony applications. SIP has been designed with a broad scope, providing more generic syntax and semantics regarding feature definition and session description. A coexistence of both protocols can be foreseen, stressing the importance of interworking between them. This paper describes to all differences, properties and provides a unique architecture.