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ETSI TS 122 024
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ETSI TS 122 024 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Description of Charge Advice Information (CAI) (3GPP TS 22.024 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 03/01/2017
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Full Description
The charging supplementary service is described in ETSI TS 122 024. These services are designed to supply to a mobileuser sufficient information to allow a real-time estimate to be made of the bill which will eventually be levied in thehome PLMN on the Mobile Station (MS) subscriber.In the case of certain MS uses, for example a mobile payphone, this estimate could be subject to further processing (e.g.to present the charges in currency, rather than units, this may include an additional mark up). This additional processingis not described in this document in order to avoid constraining the evolution of the MS product in this area.
This document gives an overall view of how this supplementary service shall operate both in the PLMN and within theMS. Text given in this document is required to define functionality and is not intended to constrain implementation.