DIN EN 301257-2000 标准详情
- 标准号：DIN EN 301257-2000
- 中文标题：专用综合业务网(pisn).规范、功能模式和信息流.二次呼叫补充业务
- 英文标题：private integrated services network (pisn) - specification, functional models and information flows - recall supplementary service (iso/iec 15051 (1997), modified) (endorsement of the english version en 301257 v 1.1.1 (1998-10) as german standard)
- 标准类别：德国标准
- 发布日期：2000-03
