| Summary: | 碩士 === 長榮大學 === 資訊管理研究所 === 95 === SIP protocol, with the advantages of been simple and efficient, had become more popular to integrate with context-awareness computing technologies. This paper proposed a SIP based research framework which integrate automatic speech generation to provide more convenient communication between users. Based on the proposed approach, a SIP context server and several SIP agents hosted on PC or PDA (Personal Digital Assistant) were built and tested. If the call party is absent or busy to answer a call, the context-awarded message is automatically replied to the caller via natural speech. The experiments showed an encouraging result of the proposed system, especially on the satisfaction of message transferring rate and service waiting time.
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