Norm
[AKTUELL]
OENORM EN 301989 V 1.1.1
OENORM EN 301989 V 1.1.1
Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Call Completion supplementary services [ISO/IEC 21991 (2002) modified]
Titel (englisch)
Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Call Completion supplementary services [ISO/IEC 21991 (2002) modified]