C.-S. Keum, Y.I. Choi, H.-J. Park, and B-S. Lee (Korea)
Softswitch, NGN, SIP-T, Design Patterns
A softswitch controls media gateways to intercon nects PSTN with packet based multi-service network is the first step in transition scenario to next generation network. SIP-T protocol is used to establish, modify, and terminate sessions for inter-softswitch signaling. In this paper we describe our approach for the design of SIP-T by using SDL Design Patterns in a softswitch system. 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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