ETSI TS 122 115

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ETSI TS 122 115 English PDF Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Charging and Billing (3G TS 22.115 version 3.2.0 Release 1999)

standard published 01/01/2000 by European Telecommunications Standards Institute

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This 22 series contains techincal issues as perceived by the UMTS users (stage 0 and stage 1 type), and includes the framework of services, terminals and environments that the UMTS system will support and the description of the services supported.