C.-S. Keum, K.-S. Chung, and B.-S. Lee (Korea)
SIP-T, Design Patterns, VoIP
SIP-T protocol is a mechanism that uses SIP (Session Initiation Protocol) to facilitate the interconnection of PSTN with packet networks. In this paper we suggest a pattern based-development methodology where patterns are used for high-level specification of a system, and the specified system is verified in a strict way. In addition to this, we proposed a set of patterns for communication protocols to be written in SDL and applied them for the development of SIP-T protocol. Consequently we can achieve high quality by using the predefined solutions and reduce development cost through experience, reusability, and modularity of patterns.
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