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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 Servic
Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Mapping Functions for the Employment of 64 kbit/s Circuit Mode Connections with 16 kbit/s Sub-Mut
Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Mapping Functions for the Employment of 64 kbit/s Circuit Mode Connections with 8 kbit/s Sub-Mult