While SIP is a request-response protocol, there is not necessarily only one response to every one request.
虽然SIP是请求-响应协议，但每个请求不一定只有一个响应与之对应。
In SIP, however, the URI typically does not dictate which cluster a server should go to.
不过，在SIP中，URI通常并不指示服务器应该进入哪个集群。
Because you submit a SUBSCRIBE request to a group but not each member of the group, you still receive SIP NOTIFY messages whenever the group changes.
由于向组提交SUBSCRIBE请求，而不是向组的每个成员提交请求，因此仍然能在组发生更改时接收到SIP NOTIFY消息。
Convinced that the camellia tisane was not dangerous, he took a sip of it and found that it tasted refreshing: aromatic, slightly bitter, stimulating, and restorative.
神农很清楚那种茶树叶没有毒，他尝了一口茶汤，觉得这汤水有香气，微苦，提神，爽口，是滋补的良药。
There has been some researches on SIP application gateway and the implement, but it is not enough to build a gateway.
对SIP应用级网关及其实现，目前虽然已经有了一些研究，但是还很不完善。
Because a SIP trunk is not a physical connection, there is no explicit limit on the number of calls that can be carried over a single trunk.
因为一个SIP中继不是物理连接，也没有就可以在一个单一的电话号码进行明确的主干限制。
If the number being called can be reached over a SIP Trunk, the call does not need to be routed over the PSTN, but can be carried on the IP network end to end.
如果这个数字被称为可以通过一个SIP中继达成共识，呼吁不须在PSTN路由，但可以对IP进行网络年底结束。
If the number being called can be reached over a SIP Trunk, the call does not need to be routed over the PSTN, but can be carried on the IP network end to end.
如果这个数字被称为可以通过一个SIP中继达成共识，呼吁不须在PSTN路由，但可以对IP进行网络年底结束。
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