• ISO/IEC 20114 : 2004

    Current The latest, up-to-date edition.

    INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK (PISN) - INTER-EXCHANGE SIGNALLING PROTOCOL - MAKE CALL REQUEST SUPPLEMENTARY SERVICE

    Publisher:  International Organization for Standardization

    Published: 

    Available Formats:  PDF - English, Hardcopy - English
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