计算机术语“virtual call facility”的中英文意思、释义、翻译及用法-计算机英汉双解词典

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术语	virtual call facility
释义	virtual call facility 虚拟呼叫设施；［选择呼叫设施］ A user facility in which a call setup procedure and a callclearing procedure determine a period of communication between two data terminal equipments (DTEs) in which users' data are transferred in the network in the packet mode of operation. All the user's data are delivered from the network in the same order in which they are received by the network. Notes:(a) This facility requires endtoend transfer control of packets within the network.(b) Data may be delivered to the network before the call setup has been completed, but they are not delivered to the destination address if the call setup attempts are unsuccessful.Multiaccess DTEs may have several virtual calls in operation at the same time. 一种用户设施，它的从一个呼叫建立过程到一个呼叫清除过程确定为两个数据终端设备(DTE )之间的通信周期，在此期间，用户数据将按包操作方式在网络中传送。所有用户数据从网络发出的次序同该网络收到的次序相同。注： (1) 此设施要求在网络内有端到端的包传送控制。(2) 在呼叫建立完成之前，数据可以送交给网络；但若呼叫建立不成功，则数据不会发送给目的地地址。(3) 多路存取的数据终端设备可以有几个虚呼叫同时工作。
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