2008-08-16 20:46 
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引用- 用户名：tobychen605
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级别：晨曦天使 日志：140篇 人气：57489 状态： 
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Foreign exchange trunks的解释
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FX: Foreign exchange (FX) trunks connect calls to a non-local central office as if it were a local central office. Use FX trunks to reduce long distance charges if your organization averages a high volume of long-distance calls to a specific area code.
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