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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.
 

Document History

  1. ETSI EN 301 656


    Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call priority interruption and call priority interruption protection supplementary services [ISO/IEC 15992 (2003), modified]

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  2. ETSI EN 301 656

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

    • Historical Version