Considering the signalingsystem project for Beijing subway Line 4 and its extension, two different implementation options are discussed.
针对北京地铁4号线及其延伸,讨论线路延伸工程中信号系统适用的两种实施方案。
2
In the application design part, we design the system into four modules and analyze the design process of its two major modules, SIP signaling module and gateway control module.