PREN 301 137 V1.1.1 标准详情
- 标准号：PREN 301 137 V1.1.1
- 中文标题：
- 英文标题：Integrated Services Digital Network (isdn); Signalling System No.7; Transaction Capabilities (tc); Application Service Element (ase) For User Signalling Bearer Service (usbs)
- 标准类别：欧盟标准EN
- 发布日期：
