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ETSI TS 132 277
M00002185
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ETSI TS 132 277 Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Charging management; Proximity-based Services (ProSe) charging (3GPP TS 32.277 version 15.1.0 Release 15)
standard by European Telecommunications Standards Institute, 06/01/2018
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