CSN ETS 300 091-1994 Integrated Services Digital Network (ISDN). Calling Line Identification Presentation (CLIP) and Calling Line Identification Restriction (CLIR) supplementary services. Functional capabilities and information flows
1994CSN ETS 300 091-1994 Integrated Services Digital Network (ISDN). Calling Line Identification Presentation (CLIP) and Calling Line Identification Restriction (CLIR) supplementary services. Functional capabilities and information flows