Information technology - Telecommunications and information exchange between systems - Corporate telecommunication networks - Signalling interworking between QSIG and H.323 - Call diversion supplementary services (Adopted ISO/IEC 21411:2001, first edition, 2001-08-15)
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Information technology - Telecommunications and information exchange between systems - Corporate telecommunication networks - Signalling interworking between QSIG and H.323 - Call diversion supplementary services (Adopted ISO/IEC 21411:2001, first edition, 2001-08-15)
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