回複：Rynga 撥通後無回音，對方能聽到，求助幫忙！

來源: 於 2013-02-07 19:20:17 [舊帖] [給我悄悄話] 本文已被閱讀：次

That is because sip uses udp 5060 port as connection and 10000-20000 as rtp ports. you need to make sure those ports are open.