EN 300 356-20 V3.2.8 (1998) 标准详情
- 标准号:EN 300 356-20 V3.2.8 (1998)
- 中文标题:
- 英文标题:Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 20: Completion of Calls on No Reply (CCNR) supplementary service [ITU-T Recommendation Q.733, clause 5 (19
- 标准类别:欧盟标准EN
- 发布日期: