近年網際網路快速普及,並迅速佔領多媒體與通訊領域,網頁電話因此應運而生,本論文針對網頁電話之架構與面臨之問題作深入之研究與提出新的網頁電話架構,最後並實作於網路電信局上。 網頁電話之研究與設計包含下列四項主題: a. 符合SIP標準之通訊協定設計。 b. 即時動態配置使用者帳號與密碼之機制。 c. 交換金鑰、加密,以及身份驗證機制,以確保安全。 d. 快速下載,一點即通服務。 關於通訊協定之設計,我們針對網頁電話所提出之新功能,完全符合SIP標準下,以期互通順暢,而即時配帳號與密碼,以符合大量網頁使用者隨機使用與雙向互通,而安全機制乃確保系統之安全與穩定,最後我們並製成 Active-X元件,讓網頁用戶快速下載與安裝,一點即通。
Due to the rapidly growing on Internet,the data communication, multimedia, and telecommunication are moved to internet platform. The webcall is an important application in the Internet platform. In this thesis, the research and design on webcall will be focused. Four topics listed as below will be researched and implemented. a. The new protocol for webcall and compatible to SIP. b. Account and password assigned dynamically for web-user. c. Security mechanism for AAA. d. Active-X component for web-user. In the first topic, the new architecture of webcall protocol must be compatible with SIP. In the second topic, the account and password is assigned dynamically for web-user and two-way communication. In the third topic, the security algorithm is employed to protect system and make the webcall secure. The last topic will build a Active-X component with small size for web-user.