ETSI EN 301 656

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ETSI EN 301 656 English PDF Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call priority interruption and call priority interruption protection supplementary services; [ISO/IEC 15992 (1998), modified]

standard published 08/01/1999 by European Telecommunications Standards Institute

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This European Normes (EN) specifies the signalling protocol for the su pport Call priority interruption supplementary service (SS-CPI) at the Q reference point between Private Integrated services Network eXchang es (PINX) connected together within a Private Integrated Services Netw ork (PISN.