CSA ISO/IEC 15992:04 (R2019) : Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Inter-Exchange Signalling Protocol - Call Priority Interruption and Call Priority Interruption Protection Supplementary Services (Adopted ISO/IEC 15992:2003, second edition, 2003-04-01)
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Download a list of included itemsCSA ISO/IEC 15992:04 (R2019)
Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Inter-Exchange Signalling Protocol - Call Priority Interruption and Call Priority Interruption Protection Supplementary Services (Adopted ISO/IEC 15992:2003, second edition, 2003-04-01)
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