背靠背用户代理(Back-to-back User Agent):在该服务器中,UAS作为正常的UAS中止请求;而UAC发起一个新请求,该请求以某种方式与UAS侧收到的请求相关,但不按照协议链接。
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Back-to-Back User Agent 背靠背用户代理
To make these actions happen, you need an application to sit in the middle of the call, act as a back-to-back user agent, and provide access to the services mentioned.
要实现这些操作,需要有一个应用程序在呼叫的中间位置充当背靠背的用户代理,并提供对上述服务的访问。
In this type of application, the SIP servlet will act either as a proxy or a back-to-back user agent (B2BUA). Whether this is a proxy or B2BUA influences the capabilities of the SIP service.
在这种应用程序中,SIP Servlet将充当代理或背靠背的用户代理(B2BUA)。
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