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ETSI EN 300 392-9
M00004424
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ETSI EN 300 392-9 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 9: General requirements for supplementary services
standard by European Telecommunications Standards Institute, 04/01/2012
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The present document defines principles and requirements generally applicable to the stage 2 and 3 descriptions ofsupplementary services for the Terrestrial Trunked Radio (TETRA).The present document is applicable to any TETRA terminal equipment (Mobile Station (MS)) and to any TETRAnetwork (Switching and Management Infrastructure (SwMI)) which support at least one TETRA SupplementaryService (SS). In addition, its routeing requirements of supplementary service information are applicable to any TETRAnetwork with a Voice plus Data (V+D) Inter-System Interface (ISI) to another TETRA network which supports at leastone TETRA SS.