Corporate telecommunication Networks (CN); Signalling interworking between QSIG and H.323; Call Completion supplementary services [ISO/IEC 21991 (2002) modified]
STANDARD published on 1.9.2003
Designation standards: STN EN 301989-V1.1.1
Classification mark: 871989
Catalog number: 91340
Publication date standards: 1.9.2003
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Slovak technical standard
Category: Technical standards STN