英语词汇“travelling class mark”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	travelling class mark
释义	travelling class mark 当一次呼叫通过网络时，对其进行识别的一种特定的标号，例如，对投币电话中发出的呼叫的识别。虽然目前还没有使用行进分类标记，将来可能与同轴电缆信息系统CCIS一道使用。这样，在几个不同的通信网络中就可以使用同一个传输设备，只要给每个通信网络分配一个传输分类标记即可。
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