DIN EN 300199:2002 Integrated Services Digital Network (ISDN) - Call Forwarding Busy (CFB) supplementary service - Service description (Endorsement of the English version EN 300199 V 1.2.1 (2001-06) as German standard)
The document defines the Call Forwarding Busy (CFB) supplementary service.
DIN EN 300199:2002 history
2002DIN EN 300199:2002-07 Integrated Services Digital Network (ISDN) - Call Forwarding Busy (CFB) supplementary service - Service description (Endorsement of the English version EN 300199 V 1.2.1 (2001-06) as German standard) / Note: DIN ETS standards collection*Endorsement notice
2002DIN EN 300199:2002 Integrated Services Digital Network (ISDN) - Call Forwarding Busy (CFB) supplementary service - Service description (Endorsement of the English version EN 300199 V 1.2.1 (2001-06) as German standard)