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ETSI TS 132 240
M00001121
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ETSI TS 132 240 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Charging management; Charging architecture and principles (3GPP TS 32.240 version 15.5.0 Release 15)
standard by European Telecommunications Standards Institute, 01/01/2020
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