This means that many of the existing connection-oriented or circuit-switched networks will need to be upgraded to support packet-switched data traffic.
这就意味着目前存在的面向连接的和电路交换的网络必须升级，以便能够支持分组交换的数据业务。
Switched current circuit (si) is a new technique for analog sampled data processing.
开关电流(SI)技术是一种新的模拟抽样数据处理技术。
Also, the hardware circuit-switched networks need to run effectively are extremely expensive, mostly because voice and data services must be supported on different wires.
另外，硬件电路交换网要办切实极为昂贵，因为大部分语音和数据服务就必须支持不同的绳索。
Cell phones already have a very low latency digital data path - the circuit switched channel used for voice.
手机上已经存在一个低延迟的数字数据路径—用于语音的线路信道。
Cell phones already have a very low latency digital data path - the circuit switched channel used for voice.
手机上已经存在一个低延迟的数字数据路径—用于语音的线路信道。
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