The gsm - r system supports functions of function number address , location decide address , vbs and vgcs . because of these functions , the gsm - r system can support the normal voice communication and specific communicaton for railway application 通過(guò)gsm - r系統(tǒng)的功能尋址、基于位置尋址、組呼叫、廣播呼叫等功能,可以提供鐵路運(yùn)輸指揮話音通信業(yè)務(wù),也可提供站場(chǎng)、應(yīng)急、施工養(yǎng)護(hù)和道口等專用通信。