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TR 32.849SA5
Study on Charging aspects of
Roaming End-to-End Scenarios
with VoLTE IMS and Interconnecting Networks

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V13.0.0 (Wzip)  2015/06  98 p.

Rapporteur:  Mr. Jesske, Roland

The objective of this study item is to document missing elements and information with regard to the roaming architecture for Voice over IMS with Local Breakout.
The present document collects and evaluates end-to-end roaming scenarios under different aspects of charging. The main scenarios presented will include mobile originating calls with and without the use of the loopback mechanism and mobile terminating call scenarios.
It will analyse operator requirements in consideration of the roaming scenarios and the existing Charging specifications. The conclusions are presented in a further clause with assumptions made and proposed further proceedings on that issues.

full Table of Contents for  TR 32.849  Word version:   13.0.0

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1  ScopeWord-p. 7
2  References
3  Definitions, symbols and abbreviationsWord-p. 9
4  OverviewWord-p. 11
5  Description of ScenariosWord-p. 23
5.1  Methodology for Entities description
5.2  Registration when roaming
5.3  Mobile Originating Call without loopbackWord-p. 34
5.4  Mobile Originating Call with loopbackWord-p. 46
5.5  Routeing when the originating and terminating user reside in the same home networkWord-p. 59
5.6  Routeing from originating home to terminating home network
5.7  Routeing from originating visited network to terminating home network
5.8  Routeing in terminating home network when user resides in this networkWord-p. 60
5.9  Routeing from terminating home network to the terminating visited networkUp
5.10  Insertion of service related media in the originating home networkWord-p. 69
5.11  PS to CS SRVCC access transfer scenariosWord-p. 77
5.12  Invocation and configuration of services during roaming in a visited networkWord-p. 89
6  Key Issues
7  ConclusionsWord-p. 97
A  Change historyWord-p. 98

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