谁指导一下如何make sip to sip call (all should be free), like sipgate c

想建立一个美,中间的免费电话。先谢。

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make sip to sip call (all should be free), like sipgate call to -cccccc5- 给 cccccc5 发送悄悄话 (0 bytes) () 02/24/2011 postreply 13:59:19

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