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ETSI EN 300 392-3-1
M00003320
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ETSI EN 300 392-3-1 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 1: General design
standard by European Telecommunications Standards Institute, 12/01/2015
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ETSI EN 300 392-3-1 defines the general aspects of interworking at the Inter-System Interface (ISI) for TerrestrialTrunked Radio (TETRA) system supporting Voice plus Data (V+D). Those specify the general concepts which are thebasis of the ISI operation between TETRA systems. It introduces the Additional Network Features (ANFs) used atthe ISI, and specifies: the general protocol mechanism, called ISI Generic Functional Protocol (ISI GFP), upon which the definitionof each ANF is based; and the security requirements for the ISI.The ISI GFP specification applies to any TETRA Switching and Management Infrastructure (SwMI) which supports theISI. The security requirements for the ISI only apply to SwMIs which support authentication or encryption over the ISI.Besides the ISI general design, the present document, interworking at the Inter-System Interface comprises thefollowing other sub-parts: Additional Network Feature - ISI Individual Call (ANF-ISIIC); Additional Network Feature - ISI Group Call (ANF-ISIGC); Additional Network Feature - ISI Short Data service (ANF-ISISDS); and Additional Network Feature - ISI Mobility Management (ANF-ISIMM).