ETSI ETS 300 347-1 PRA 1-1996 修改件1.信令协议与交换(SPS)?.数字本地交换(LE)的V接口.支持接入网(AN)的V5.2接口.第1部分:V5.2接口规范
AMD 1 Signalling Protocols and Switching (SPS); V Interfaces at the Digital Local Exchange (LE); V5.2 Interface for Support of Access Network (AN); Part 1: V5.2 Interface Specification