93/630088 DC 标准详情
- 标准号:93/630088 DC
- 中文标题:
- 英文标题:Bs 6450 Private Branch Exchanges For Connection To Public Switched Telephone Networks Run By Certain Public Telecommunication Operators. Part 7: Specification For The Procedure For In-service Observation Of Pbxs Undergoing Type Approval
- 标准类别:标准草案
- 发布日期: