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SIP是由IETF制定的主要用于实现多媒体会话控制的会话初始协议,该协议以实现简单、扩展性好,多媒体会话提供能力和业务扩展能力强,具有强大的用户查找和定位能力,以及与现有Internet协议联系紧密,而获得了广泛的应用。由于IP网络具有很多潜在的不安全因素,同样存在于采用SIP信令协议的软交换系统中,因此基于SIP的业务要想真正的实用,必须解决其安全问题。
SIP is the initial session protocol developed by the IETF for multimedia session control. The protocol has the advantages of simple implementation, good scalability, multimedia session capability and service expansion capabilities, strong user search and location capabilities, Internet protocols are closely linked, and obtained a wide range of applications. Since IP networks have many potential insecurities and also exist in softswitch systems that use SIP signaling protocols, SIP-based services need to be truly secure and must address their security issues.