SS ETS 300 356-19-1995 标准详情
- 标准号：SS ETS 300 356-19-1995
- 中文标题：
- 英文标题：Integrated Services Digital Network (isdn) - Signalling System No.7 - Isdn User Part (isup) Version 2 For The International Interface - Part 19: Three-party (3-pty) Supplementary Service
- 标准类别：新加坡SS
- 发布日期：
