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。

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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。

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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。

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Or head to Patrick Kavanagh's local, Toner's, not far from his beloved Raglan Road where WB Yeats would also sit and sip a sherry.

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The attraction is simple: If there's a company with a wireless network within range of a favorite coffee joint, why not borrow its fast Internet connection and surf while you sip.

FORBES: Magazine Article

It might not be your cup of tea, but it's well-brewed and worth taking a sip if you're in that end of the market.

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