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2006-11-19
VoIP术语－Transfer Protocol
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2006-11-19
VoIP术语－Foreign Exchange Office
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2006-11-19
VoIP术语－Foreign Exchange Station
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2006-11-19
VoIP术语－局域网接口
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2006-11-19
VoIP术语－VoIP
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2006-11-19
VoIP术语－管理功能
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2006-11-19
VoIP术语－International Telecommunication Union
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