| Заглавие на английском языке | Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP) version 2 for the international interface - Part 3: Calling Line Identification Presentation (CLIP) supplementary service (ITU-T Recommendation Q.731, clause 3 (1993), modified); English version ETS 300356-3:1995 |