本論文將針對SIP協定設計網路電話廣播功能系統,提出的廣播系統可改良一對一的通話模式使網路電話具備有一對多的進階廣播功能,並克服一般網路廣播與群播封包於目前網路環境中NAT與ROUTER造成的限制。 本論文提供了廣播系統架設的另一種選擇,並將網路電話的功能與應用提升,以SIP協定設計的網路廣播系統其功能有一般廣播、定時自動廣播、鐘響廣播、設定廣播群組並針對不同的群組廣播、即時加入與取消廣播中的群組。 最後,本論文於網路廣播系統的設計,著重兩項重點: 第一,SIP與RTP之研究與實作。 第二,SIP廣播系統之研究與實作。
This paper offers a solution for internet broadcast system by using SIP protocol. The broadcast system can change the point-to-point calling mode to the point-to-multipoint calling mode, and also can overcome the limitation of NAT and ROUTER on the internet environment. The broadcast system advances IP phone’s function, so IP phones can not only make a phone call but also broadcast. The SIP-based Broadcast System can do broadcast, scheduled broadcast, class bell, setting broadcast group, grouping broadcast, adding some groups on broadcast ,cancelling some groups on broadcast. This paper focuses on two topics: 1. The research and implementation of SIP and RTP protocol. 2. The research and implementation of SIP-based broadcast system.