Artech House - SIP. Understanding the Session Initiation Protocol, Second Edition 时间:2011-09-22 02:52:22 【文件属性】: 文件名称:Artech House - SIP. Understanding the Session Initiation Protocol, Second Edition 文件大小:5.33MB 文件格式:CHM 更新时间:2011-09-22 02:52:22 SIP SIP的经典教程,通俗易懂,呼叫流程描述的很详细 立即下载