Corporate telecommunication Networks (CN); Signalling interworking between QSIG and H.323; Call Completion supplementary services [ISO/IEC 21991 (2002) modified]
NORMA vydána dne 25.2.2003
Designation standards: ETSI EN 301989-V1.1.1
Publication date standards: 25.2.2003
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI