In this paper, we first present some proposed extensions based on SIP (Session Initiation Protocol) conference scenarios. We then show how to use such extensions to enhance interactive distance learning (IDL) applications as an example. Our work describes some enhancements of conference scenarios based on SIP. The system architecture to support such scenarios as well as signal flows are presented. Some flow parameters are given, to show real deployment possibility. We have proposed two additional components to enhance conference features: Conference Manager Server (CMS) and Conference Repository (CR). We have deployed these scenarios for SIP based e-learning applications. We have shown some e-learning scenarios when interactive communications are needed, for example, class scheduled learning, class mate group finding. In addition, other rich features can be added, e.g. sharing on-line objects and documents in real-time, virtual interactive white-board, and multimedia recorder. We have proposed the implementation architecture, some main features are described. We discussed for some future challenging works: P2P based SIP may be adopted. Moreover, converging to UCC (Unified Communication and Collaboration), as well as working on multi-platform and multi-devices are concerned.
本稿では、まず、SIP (Session Initiation Protocol) の会議通話向けの拡張を提案した。次に、この拡張の利用例として、enhance interactive distance learning (IDL) アプリケーションにおける利用例を示した。本研究では、会議向けの拡張のため、Conference Manager Server (CMS) と Conference
Repository (CR) の２つのコンポーネントの追加を提案し、E ラーニング用のアプリケーションへの適用を検討した。E ラーニングにおいては、受講者間の会話など、インタラクティブなコミュニケーションが必要な場合がある。また、教材のリアルタイム共有、黒板の共有、マルチメディア録音機能の利用も考えられる。本研究では、これらの機能の実装方針を提案した。

特集 アジアにおけるネットワークと遠隔教育
招待論文