在網際網路的普及化、數位傳輸技術的進步及電信自由化的環境下，使得利用網際網路來進行通訊的應用更加蓬勃發展，利用網際網路作為訊息傳遞的溝通平台已成為上網的加值服務之一。近年來更由於寬頻的速率提升與普及化，網路電話此一殺手級應用遂應運而生，其結合電信事業後的影響力將會更快、更深遠。網際網路的興起拉近了人們傳遞訊息的距離，也正悄悄的在改變人們的通訊習慣。全球上網人數的快速成長，無論企業或個人需求，藉由網路電話所提供的便利性及低設置成本，在網路世界即時連繫已然是時勢所趨。
　　本研究之主要目的在探討消費者對網路電話的認知及採用行為之影響因素，以探討科技接受度之科技接受模型為主要理論架構，並考量電信產業之特性及消費者採用行為，結合網路外部性、消費者特性、消費者創新性等相關理論發展出本研究架構。探討網路外部性對認知信念、消費者特性對消費者創新性及各相關變數對採用態度與採用意願之影響分析。
　　本研究主要以台南、高雄縣市年滿16歲以上之民眾為抽樣對象，以傳統問卷及網路問卷方式收集樣本資料，總計回收有效問卷為632份。研究發現結果如下：
一、網路外部性對認知有用性、認知易用性均會產生正向影響，且對於認知有用性的影響程度高於認知易用性，認知易用性也會正向影響認知有用性。
二、認知有用性、認知易用性、消費者創新性均顯著正向影響採用態度，而認知有用性對採用態度的影響程度最大。
三、認知有用性、消費者創新性、採用態度顯著正向影響採用意願。
四、消費者特性之人口統計變數中，年齡及教育程度不同對採用態度有顯著差異；性別、婚姻狀況、教育程度不同，其消費者創新性有顯著差異。

　Under the progress of the universal and digital transmission technique and the environment of the telecommunication liberalism of the internet, the application that makes to make use of the internet to carry on the telecommunication develops rapidly more, make use of the internet is the information to deliver of the communication platform has already become to get to the Internet of one of the value added service. Even promote due to the velocity of the broadband in recent years with universal, this cutthroat class application of VoIP hence emerge with the tide of the times, after it combine the telecommunication business of the influence will be faster and more profound. The rise of the internet drew near the people to send the distance of the information, also just silently be changing the people's telecommunication habit. The world gets to the Internet the fast growth of the number, no matter the enterprise or personal need, by the convenience and low setup cost that the network telephone provides, have already been an irresistible general trend in the real time contact in the network world.
　The main purpose of this research is inquiring into the influence factor of the cognition and the adoption behavior of consumer to the internet telephone, taking inquiring into science and technology of technology acceptation model as the main theories to configure, and considering the characteristic and consumer of the telecommunication industry adoption behavior, creative sex of the combinational network exterior, consumer characteristic, consumer innovativeness etc. of the related theories develops this research structure. Inquire into the network exterior to adopt the influence analysis of attitude and the adoption will towards cognizing the conviction, the consumer characteristic to the consumer innovation and each 　This research mainly with Tainan and Kaohsiung, in order to draw samples the object, the full people over 16 years old to collect the sample data with the traditional questionnaire and the network questionnaire method, totaling the valid questionnaire of the recovery as 632s.Study to find the result is as follows:
1.The network externalities to cognize the useful, cognition easy use sex and will generate all the forward direction influence, and for cognition useful of the influence degree higher is easy in the cognition with sex, cognizing easy use sex also meeting forward direction the influence cognizes the useful
2.Perceive usefulness and perceive ease of use the influence degree that use the all obvious forward direction influence adoption attitude of sex, the consumer innovation, and cognize the useful to the adoption the attitude is biggest.
3.The obvious forward direction influence that cognizes the useful, the consumer innovation, the adoption attitude adopts the will.
4.In the census taking variable of the consumer characteristic, the age and the level of education dissimilarity have obvious discrepancy to the adoption attitude; The sex, marital status, level of education is different, its consumer innovation contain obvious discrepancy.

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