这些卡片可以显示你的应用程序的当前状态，诸如通知、收到的消息的数量，呼叫的数量等。
These tiles will show the current status of your applications such as notifications, number of messages received, number of calls etc.
第二个使用者能在很短的时间内使用大量消息“淹没”服务的请求队列，使得呼叫中心解决方案很难继续正常运行。
This second consumer can flood the request queue of the service with a large number of messages in a short time, making it difficult for the call center solution to continue to perform as appropriate.
在RFC 3262中，开发了一项机制来确保可靠地发送消息，且仅为确认目的而发送，以便在使用udp之类的传输协议时不会丢失呼叫状态。
In RFC 3262, a mechanism was developed to ensure that the responses are sent reliably and acknowledged alone so that the status of the call is not lost if the transport protocol is something like UDP.
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