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Standards Worldwide
Standards Worldwide
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Standard [CURRENT]

CAN/CSA-ISO/IEC 21991-04:2004-01-01

Information Technology - Telecommunications and Information Exchange Between Systems - Corporate Telecommunication Networks - Signalling Interworking Between QSIG and H.323 - Call Completion Supplementary Services

Publication date
2004-01-01
Original language
English
Pages
34

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Publication date
2004-01-01
Original language
English
Pages
34

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