Standards
[CURRENT]
NF Z82-063
; NF ETS 300063:1994-12-01
NF Z82-063
; NF ETS 300063:1994-12-01
Integrated Services Digital Network (ISDN). Direct dialling (ddi) supplementary service. Functional capabilities and information flows
Title (German)
INTEGRATED SERVICES DIGITAL NETWORK (ISDN). DIENSTMERKMAL DURCHWAHL. FUNKTIONELLE FAEHIGKEITEN UND INFORMATIONSFLUESSE