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IEC 17309 Ed. 1.0 en:2000

IEC 17309 Ed. 1.0 en:2000 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Mapping functions for the employment of a circuit mode basic service and the supplementary service user-to-user signalling as a pair of on-demand inter-PINX connections

standard by International Electrotechnical Commission, 10/10/2000

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