EN 301 254 V1.1.1 (1998) 标准详情
- 标准号：EN 301 254 V1.1.1 (1998)
- 中文标题：
- 英文标题：Private Integrated Services Network (PISN); Specification, functional model and information flows; Advice of charge supplementary services [ISO/IEC 15049 (1997) modified]
- 标准类别：欧盟标准EN
- 发布日期：
