- 學位論文
網路電信局中UMS系統之研究與實作
The Research and Implementation of UMS for IP-based Telecommunication System
摘要
近年來網際網路快速普及，使得網路電話VoIP也隨著出現，VoIP主要是以ITU-T所訂定的H.323和IETF所訂定的SIP協定為主，但因為H.323太過於龐大且複雜，在現今的商業應用中，已經很少在使用此協定了；而SIP類似於HTTP的協定，可以減少應用系統的開發時間，且容易與Web介面整合，所以VoIP服務業者較高度重視SIP技術。SIP是透過IP網路實現，相較於PSTN網路更容易整合更多的加值服務。本論文主要是架構在IP開放式標準的網路平台，以SIP協定為基礎，結合其它的技術，發展出一套統一訊息服務(UMS)的系統。 統一訊息服務(UMS)之研究與實作主要包含下列四項主題： a.符合SIP標準之通訊協定設計。 b.語音信箱(Voice Mail)和訊息中心(MSG Center)服務的開發。 c.將Database、SMTP和SMS整合到此系統中。 d.以ASR取代DTMF進行語音撥號及使用TTS將文字訊息朗讀出來。 UMS的概念，已逐步成為電信服務的必備附加服務，對服務提供業者來說，可增加他們在電話市場上的競爭力；對於用戶來說，UMS系統能夠為他們節省時間，用戶可以在自己方便的任何時間、任何地點使用現有不同的技術、媒介和終端連接到UMS系統的伺服器，並獲取所需的資訊。統一訊息服務(UMS)被納入下一代IP智慧型網路的應用體系中，與其它各種應用服務高度整合，為用戶提供更多的便捷服務。
並列摘要
The Internet becomes popular in the latest year. Therefore the VoIP technology also appears with this groundswell. The VoIP technology is major on H.323 that set up by ITU-T and SIP set up by IETF. But the H.323 system structure is too extensive and complex. People rarely use this protocol in the application of commerce from now on. The SIP protocol is similar as HTTP. It can reduce developmental time of application system and also easily integrate with Web interface. So VoIP service provider attachs more importance to SIP technology. SIP comes true by way of IP network. It can integrate more value service than PSTN network.This dissertation is structure on IP open standard Internet platform and base on SIP. It combines to other technology and develops a battery of Unified Message Service (UMS). The research and implementation of Unified Message Service (UMS) includes of the four issues as below: a.Accordance with communicate protocol design of SIP standard. b.Voice Mail and MSG Center service develop. c.Use Database, SMTP and SMS integrated of this system. d.Use ASR instead of DTMF, Carries on voice dial-up and read word message by using TTS. The conceptual of UMS has become additionally necessary service of telecom service. For service provider, it can increase competitiveness of their telephone market. For the end user, UMS system can save their time and end user can use the different technology, agent and terminal to connect to the UMS server at their any convenient time and place. And they can also get the needful information. UMS is subsumed the applied system of IP-based intelligent network and it highly integrated the every other kind of applied service. It also supplies the more convenient service to end user.