綜觀目前的電信產業市場，網路電話(Voice over Internet Protocol；VoIP)在最近幾年經歷了非常驚人的改變，擺脫了以前只是個網際網路應用上的一個附屬身份。現在VoIP已經獲得了企業以及一般使用者用戶的青睞，逐漸的取代了原本所使用的傳統電話(PSTN)服務，就因為VoIP不僅僅是新的通信服務項目而已，更重要的是對傳統通信服務的替代性越來越高，一旦從這裡開了個缺口，當VoIP用戶越來越多時，目前傳統電信系統之緊急電話將可能是未來VoIP環境會面臨到的後續問題，牽一髮而動全身的問題雖然無法在短期間出現，但這顯然是可以預見的。本篇論文首先探討網際網路電話所使用的網路通訊及傳輸協定，比較完協定優缺點之後，接著瞭解目前台灣現行的110緊急電話系統架構。在不考慮會影響網路品質之因素下再進而思考如何在網路環境中建構110緊急電話系統的模型，做為未來於網際網路上進行緊急電話之研究基礎。 The comprehensive survey at present telecommunication industry market, we all know the network telephone has recently experienced the extremely astonishing change in several years, got rid of before was only in a Internet application attached status, now VoIP already has obtained the enterprise as well as the common user user''s favour, the gradual substitution originally has used the traditional telephone (PSTN) serves, because VoIP not merely was the new correspondence service project, more importantly to traditional correspondence service vicariousness more and more high, once has opened a gap from here, when the VoIP user are more and more many, at present the traditional telecommunication system the urgent telephone possibly will be the following question which the future VoIP environment will be able to face, Pulls round to move the whole body the question although is unable in the short-term to appear, but this obviously is may foresee. This paper first discusses the network communication and the transmission agreement which the Internet telephone uses, after agreement good and bad points understood in addition the present Taiwan present 110 urgent telephone system overhead construction, in did not consider can affect factor of under the network quality then to ponder again how constructs in the network environment constructs 110 urgent telephone systems the model, will do carries on research foundation the urgent telephone for the future in the Internet.
