SUBSCRIBE请求如何终止SIP对话框？

Question

“ SUBSCRIBE ”请求如何终止 SIP 对话框？

Answer 1

您应该在rfc6665中找到所有答案。您可以更精确地查看第 4.2.1.4节。刷新订阅 和 4.4.1。对话框的创建和终止

引用RFC的一些文本：

这是从订户方请求结束对话的方法：

Clients can cause a subscription to be terminated immediately by
sending a SUBSCRIBE request with an "Expires" header field set to
'0'.

最后一个真正终止对话框的通知：

A subscription is destroyed after a notifier sends a NOTIFY request
with a "Subscription-State" of "terminated", or in certain error
situations described elsewhere in this document.