Standards
[CURRENT]
NF Z82-200
; NF ETS 300200:1997-05-01
NF Z82-200
; NF ETS 300200:1997-05-01
Integrated Services Digital Network (ISDN). Call Forwarding Unconditional (CFU) supplementary service. Service description
Title (German)
ISDN. DIENSTMERKMAL "STAENDIGE ANRUFWEITERSCHALTUNG". DIENSTBESCHREIBUNG