(PDF英文版) by Flavio E. Goncalves OpenSips项目参考文档 # An introduction to SIP # An overview of SIP Proxies # Compiling and installing OpenSER # SIP Proxy default configuration # Implementing MySQL support for authentication # Installing the user portal (S
会话初始化协议是互联网工程任务组（IETF）制定的协议标准，在多个RFC（Request for Comments）文档中被进行了描述说明。RFC3261是最近的一个RFC，一般称它为SIP版本2。SIP是一个应用层的协议，用来建立，修改，终止会话（sessions）或是多媒体通话（multimedia calls）。这些会话可以会议（conferences），e-learning，网络电话和一些相似的应用。它是同HTTP协议相类似的文本协议并且被设计用来发起，保持，关闭用户之间的交互会话。目
openSER 完整介绍 We are starting a new era in the collaboration area. Voice and Video over IP are starting to dominate the world of telecommunications in a disruptive movement capable of changing the whole industry. The SIP (Session Initiation protocol)
openser的配置说明,包括注册,认证,NAT穿越,计费(freeradius和cdrtool的安装与配置). 注意这个文档是英文的,完整介绍: We are starting a new era in the collaboration area. Voice and Video over IP are starting to dominate the world of telecommunications in a disruptive movement capable of chang
