GSM-R = GSM业务 + 语音调度业务 + 铁路应用

### ASCI (Advanced Speech Call Items) features (高级语音呼叫)

- VGCS (Voice Group Call Service)
- VBS (Voice Broadcast Service)

### Functional Addressing (基于功能的寻址)

> Alias system to call someone registered on the GSM-R network, only by knowing the temporary function user (engine driver of train such-and-such, ...)

不用传统的电话号码，用`一串代表特定群体或事物的`代码。

### Location Dependent Addressing (基于位置的寻址)

> Routing system to call the most appropriate train controller regarding the current train position by dialling a pre-defined short code

根据位置的不同，呼叫不同的人。

### Others

- 尾部风压监测: 监测得到的数据需由GSM-R网络传回
- 列车自动控制(ATC, Automatic train control)

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