Standards
[CURRENT]
NF Z82-650
; NF ETS 300650:2001-02-01
NF Z82-650
; NF ETS 300650:2001-02-01
Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service - Service description
Title (German)
Dienstintegierendes Digitalnetz (DIDN) - Dienstmerkmal Anklofen (MWI) - Dienstbeschreibung