ISO IEC 15055-1997 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification fu.pdf

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1、INTERNATIONAL STANDARD lSO/IEC 15055 First edition 1997-05-l 5 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Transit counter additional network feature Technologies

2、de Iinforma tion - T6l6communica tions et sit count; 1 1 / Figure 1 - ANF-TC, overall SDL 7 ANF-TC stage 2 specification Throughout this clause, the term “call” shall be interpreted as meaning “call or signalling connection”. 7.1 Functional model 7.1.1 Functional model description The functional model shall comprise the following functional entities: FE1 TC Initialize FE2 TC Execute The following functional relationship shall exist between these FEs: ra between FE1 and FE2 and between consecutive FE2s Figure 2 shows these FEs and relationship. LA- Figure 2 - Functional model for ANF-TC