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    ISO/IEC 15992 : 2003(R2015)

    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

    International Organization for Standardization

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    ISO/IEC 15052 : 2003(R2015)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - RECALL SUPPLEMENTARY SERVICE

    International Organization for Standardization

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    ISO/IEC 15505 : 2003(R2015)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - SPECIFICATION, FUNCTIONAL MODEL AND INFORMATION FLOWS - MESSAGE WAITING INDICATION SUPPLEMENTARY SERVICE

    International Organization for Standardization

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    ISO/IEC 15431 : 2003(R2015)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - WIRELESS TERMINAL CALL HANDLING ADDITIONAL NETWORK FEATURES

    International Organization for Standardization

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    ISO/IEC 13868 : 2003(R2015)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - NAME IDENTIFICATION SUPPLEMENTARY SERVICES

    International Organization for Standardization

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    ISO/IEC 14846 : 2003(R2008)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTEREXCHANGE SIGNALLING PROTOCOL - CALL INTRUSION SUPPLEMENTARY SERVICE

    International Organization for Standardization

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    ISO/IEC 13872 : 2003(R2008)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - SPECIFICATION, FUNCTIONAL AND INFORMATION FLOWS - CALL DIVERSION SUPPLEMENTARY SERVICES

    International Organization for Standardization

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    ISO/IEC 15051 : 2003(R2017)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - SPECIFICATION, FUNCTIONAL MODEL AND INFORMATION FLOWS - RECALL SUPPLEMENTARY SERVICE

    International Organization for Standardization

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    ISO/IEC 13874 : 2003(R2008)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - PATH REPLACEMENT ADDITIONAL NETWORK FEATURE

    International Organization for Standardization

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    ISO/IEC 15050 : 2003(R2015)

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - ADVICE OF CHARGE SUPPLEMENTARY SERVICES

    International Organization for Standardization

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